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Latest Articles

  • Warning: The driver descriptor says the physical block size is 2048 bytes, but Linux says it is 512 bytes. solution


    Disk /dev/sdb: 15.22 GiB, 16336814080 bytes, 31907840 sectors
    Disk model: SD/MMC          
    Units: sectors of 1 * 512 = 512 bytes
    Sector size (logical/physical): 512 bytes / 512 bytes
    I/O size (minimum/optimal): 512 bytes / 512 bytes
    Disklabel type: dos
    Disk identifier: 0x00000000

     

    The fdisk output is above and below is the error you may get when trying to use the drive or even format it.


    Warning: The driver descriptor says the physical block size is 2048 bytes, but Linux says it is 512 bytes.

    wipefs is a useful tool to show us what filesystems exist on the drive.

    root@mint:/home/mint# wipefs /dev/sdb
    DEVICE OFFSET TYPE UUID      LABEL
    sdb    0x52   vfat 53E2-5BC6
    sdb    0x0    vfat 53E2-5BC6
    sdb    0x1fe  vfat 53E2-5BC6
     

    Let's wipe out all filesystems to fix the error

    Make sure you have backed up any data. 

    Change sdX below with the actual drive you want to do this to.

    wipefs --all /dev/sdX


  • Cisco How To Use a Third Party SIP Phone (eg. Avaya, 3CX)


     

    Most relevant config points from my video here.

     

    1.) Create a new End User

     

     

    The most important part is setting the "Digest Credentials", that is the password that the phone will use to authenticate.

     

    2.) Add a New Phone

    Device -> Phone

     

     

     

    3.) 

     

    Set a fake MAC address in the right format eg. AAABBBCCCDDD.

    Remember to assign the phone to the user you created earlier.

    Set the "Third-party SIP Device Basic - Standard SIP" security profile as below.

     

    Scroll down and set the Digest user to the user we sent earlier.

     

     

     

     

     

    Remember to create a DN, your phone will then authenticate with the DN as the username and the password of the "Digest User".


  • Cisco Unified Communication Manager (CUCM) - How To Add Phones


    Before starting you should reset your phone(s) if they have been previously registered to another CME/CUCM:

    https://realtechtalk.com/Cisco_IP_Phone_How_To_Reset_To_Factory_Settings_Instructions_CP_9971_8800_8900_8845_8851_8841_8831_7961_7960_7945_7942_7941_7940-2212-articles

    https://realtechtalk.com/How_to_Reset_CIPC_Cisco_IP_Communicator_for_CME_CUCM_CallManager-2503-articles

    Before starting go to "Cisco Unified Serviceability" drop-down on the top-right

    Under Tools go to Service Activation.

    Enable "CallManger" and "tftp" in order for phones to register.

     

    Step 1 - Go The Phone Menu

    Step 2 - Add New Phone

    Step 3 - Choose Phone Type

     

     

    Step 4 - Set Phone MAC

    The format is SEPMACADDRESS

     

     

    As we can see, the minimum requirements are that we specify the following:

    Device Name:
    Device Pool:
    Owner User ID:
    Device Security Profile:

      

     

    Step 5 - Add New DN (top left)


  • pptp / pptpd not working in DD-WRT iptables / router


    Although it is well-known that pptp is not secure and is subject to many forms of attacks, the reality is that a lot of legacy and embedded devices use pptp.  I argue that if it is being used for routing or remote access or over an already secure connection (eg. another VPN like ikev2) then this is still acceptable.  Or in a LAN or in a public environment where no private data is exchanged.  However, if the nature of the data is extremely sensitive, you should do whatever it takes to have the second layer of encryption by using a secure VPN protocol.

    In iptables you can find many threads and discussions about how to make pptp work with iptables, with crazy forwarding rules and blindly and manually allowing all GRE etc...  However it's much more simple in my experience.  You just need to enable the netfilter conntracking to be able to connect your pptp client.

    This solution also applies to a node running Kubernetes and Docker containers (eg. an embedded device that is for some odd reason using pptp).  If you can, switch to ikev2 or OpenVPN.

    sysctl -w net.netfilter.nf_conntrack_helper=1

    For permanent changes add this to /etc/sysctl.conf:

    net.netfilter.nf_conntrack_helper=1

    There are other modules necessary to make pptp work, but you can see that any recent kernel will  load them on its own:

    nf_nat_pptp            20480  0
    nf_conntrack_pptp      24576  1 nf_nat_pptp
    nf_nat                 45056  3 nf_nat_pptp,iptable_nat,xt_MASQUERADE
    nf_conntrack          139264  6 xt_conntrack,nf_nat,nf_conntrack_pptp,nf_nat_pptp,nf_conntrack_netlink,xt_MASQUERADE


  • systemd-journald high memory usage solution


    Sometimes systemd-journald can take several hundred megs of RAM or more which is bad for microservices and embedded devices.

    Edit /etc/systemd/journald.conf

     

    You can set it to max 5M of RAM like below:

    SystemMaxUse=5M
     


  • How to Install FreePBX 17 in Linux Debian Ubuntu Mint Guide


    FreePBX official install guide is here.

    Requirements:

    1. Debian 12
    2. Minimal - System Utilities
    3. RAM: 4G
    4. HDD: 20G

     

    Note that if you don't have the required base OS you will get an error like this at the end of the install

    2024-10-23 00:30:22 - Upgrading FreePBX 17 modules
    2024-10-23 00:30:22 - Installation failed at step Upgrading FreePBX 17 modules. Please check log /var/log/pbx/freepbx17-install-2024.11.05-00.14.36.log for details.
    2024-10-23 00:30:22 - Error at line: 1135 exiting with code 255 (last command was: fwconsole ma upgradeall >> $log)
    2024-10-23 00:30:22 - Exiting script


    #log

    In modulefunctions.class.php line 2814:
                                                                                                  
      preg_replace(): Passing null to parameter #3 ($subject) of type array|string is deprecated  
                                                                                                  

    moduleadmin [-f|--force] [-d|--debug] [--edge] [--ignorecache] [--stable] [--color] [--skipchown] [-e|--autoenable] [--skipdisabled] [--snapshot SNAPSHOT] [--format FORMAT] [-R|--repo REPO] [-t|--tag TAG] [--skipbreakingcheck] [--sendemail] [--onlystdout] [--] [...]

    2024-10-23 00:30:22 - ****** INSTALLATION FAILED *****
    2024-10-23 00:30:22 - Installation failed at step Upgrading FreePBX 17 modules. Please check log /var/log/pbx/freepbx17-install-2024.11.05-00.14.36.log for details.
    2024-10-23 00:30:22 - Error at line: 1135 exiting with code 255 (last command was: fwconsole ma upgradeall >> $log)
    2024-10-23 00:30:22 - Exiting script

    Step 1- Get and execute the official Sangoma (maker of Asterisk) install script:

    wget https://github.com/FreePBX/sng_freepbx_debian_install/raw/master/sng_freepbx_debian_install.sh

    bash sng_freepbx_debian_install.sh

    The install took about 20 minutes for me on a single core Xeon on an SSD.

    If successful it should look like this at the end:

    ______                   ______ ______ __   __
    |  ___|                  | ___ | ___ \ / /
    | |_    _ __   ___   ___ | |_/ /| |_/ / V /
    |  _|  | '__| / _ / _ |  __/ | ___ /  
    | |    | |   |  __/|  __/| |    | |_/ // /^
    _|    |_|    ___| ___|_|    ____/ /   /
                                                  
                                                  
    NOTICE! You have 4 notifications! Please log into the UI to see them!
    Current Network Configuration
    +-----------+-------------------+---------------------------+
    | Interface | MAC Address       | IP Addresses              |
    +-----------+-------------------+---------------------------+
    | ens3      | |               |
    |           |                   | fe80::dcad:beff:feef:6e79 |
    +-----------+-------------------+---------------------------+

    Please note most tasks should be handled through the GUI.
    You can access the GUI by typing one of the above IPs in to your web browser.
    For support please visit:
        http://www.freepbx.org/support-and-professional-services

    +---------------------------------------------------------------------+
    | This machine is not activated.  Activating your system ensures that |
    | your machine is eligible for support and that it has the ability to |
    | install Commercial Modules.                                         |
    |                                                                     |
    | If you already have a Deployment ID for this machine, simply run:   |
    |                                                                     |
    |    fwconsole sysadmin activate deploymentid                         |
    |                                                                     |
    | to assign that Deployment ID to this system. If this system is new, |
    | please go to Activation (which is on the System Admin page in the   |
    | Web UI) and create a new Deployment there.                          |
    +---------------------------------------------------------------------+
     



    Step 2 - Setup and Login to the GUI

     

     

     Then enter the Administration Section

     

    Do all of the default Firewall Settings and then you'll be in the Admin home page


     

     

    Bug in installer script:

    This happens if you try the near impossible by using an older/different Debian

    The current script as of 2024-10-11 has a bug where they pass -S to add-apt-repository when it must be a lower case -s which breaks everything as you can see in the log:

     esolving deb.freepbx.org (deb.freepbx.org)... 52.217.40.28, 54.231.128.57, 52.217.9.44, ...
    Connecting to deb.freepbx.org (deb.freepbx.org)|52.217.40.28|:80... connected.
    HTTP request sent, awaiting response... 200 OK
    Length: 3139 (3.1K) [binary/octet-stream]
    Saving to: 'STDOUT'

         0K ...                                                   100% 19.4M=0s

    2024-10-11 21:52:03 (19.4 MB/s) - written to stdout [3139/3139]

    Usage: add-apt-repository


    add-apt-repository is a script for adding apt sources.list entries.
    It can be used to add any repository and also provides a shorthand
    syntax for adding a Launchpad PPA (Personal Package Archive)
    repository.

    - The apt repository source line to add. This is one of:
      a complete apt line in quotes,
      a repo url and areas in quotes (areas defaults to 'main')
      a PPA shortcut.
      a distro component

      Examples:
        apt-add-repository 'deb http://myserver/path/to/repo stable myrepo'
        apt-add-repository 'http://myserver/path/to/repo myrepo'
        apt-add-repository 'https://packages.medibuntu.org free non-free'
        apt-add-repository http://extras.ubuntu.com/ubuntu
        apt-add-repository ppa:user/repository
        apt-add-repository ppa:user/distro/repository
        apt-add-repository multiverse

    If --remove is given the tool will remove the given sourceline from your
    sources.list


    add-apt-repository: error: no such option: -S

     

    This can be fixed by editing the bash installer file you downloaded and changing -S to -s

     


  • How To Install Cisco's CUCM (Cisco Unified Communication Manager) 12 Guide


     This is a quick overview of the main screens that you will need to go through to do the Cisco Unified Communication Manager installation (CUCM). 

    Skip the media test

     

     

     

    Skip the Platform Installation Wizard (we'll do it later)

     

     

    Set the relevant hostname and IP address information

    Remember below is just an example, make sure you set a valid IP for your network.

     

    Don't worry about a DNS error exactly like below

    If you get the exact error below notice that it is complaining about "Reverse DNS lookup failed".  You can safely proceed and continue the install, or if you control your own DNS, then you can add a reverse entry for your IP to avoid this error.

     

    In the next screens you will be creating different usernames and passwords for different purposes (eg. Admin user, App/UI user etc..).  Make sure you write down what each username and password is for and DO NOT forget them .

     

    Create your SSL certificate, normally it would be something relevant to your company eg. (yourcompany.com).

    First Node Configuration Screen.

    If this is your first install and you don't have an existing Cluster you should choose "Yes".

    Otherwise you would Choose "No" and enter the details of the Publisher in the next screen.

     

     

    Normally we should have NTP in production, you may opt not to use NTP if your firewall blocks it or if your network has no outside access.

     

    Keep your Security Password Somewhere Safe

    The most common issue in setting up a Cluster is that you have bad network and/or the wrong Security Password.

     

     

    Normally you would want SMTP but if you are on a network that doesn't allow SMTP or you have no mail account to use, it is OK to say "No" for now.

     

     

    This step is another crucial part of the install and where people go wrong.

    Note that if you have specified a bad IP or a non-working default gateway that this step will fail and you'll need to go back and set proper IP info.

    This is one of the longest steps below.  Note that there is some timeout in the install script, if this step takes too long the install times out, fails and you have to reinstall. 

    This is normally only an issue on machines with lots of IOPS of other usage or if you have an older/slower RAID array or mechanical disks/insufficient IO bandwidth at the moment.

     

     

    Congrats!  After this point, you should be able to reboot and login to the Web GUI of CUCM (using your application user).

    Note that it may take 5-15 minutes on initial boot for the Web GUI to be ready.

     


  • Linux Ubuntu Redhat How To Extract Images from PDF


    Just use pdfimages:

    Change yourpdf.pdf to the name of your pdf

    output-name is the name format (eg. output-name01.jpg output-name02.jpg) is how the files will be named if you use "output-name".  Change as needed.

    pdfimages -all yourpdf.pdf output-name

    After that you will have extracted all of the images.

    You can also just run the command with -list and see all of the images contained within the pdf like this:

    pdfimages -list file.pdf


    page   num  type   width height color comp bpc  enc interp  object ID x-ppi y-ppi size ratio
    --------------------------------------------------------------------------------------------
       1     0 image    2543  1553  rgb     3   8  jpeg   no         4  0   231   188 64.6K 0.6%
       2     1 image    2543  1553  rgb     3   8  jpeg   no         4  0   231   188 64.6K 0.6%
       2     2 image    1120  1120  rgb     3   8  jpeg   no         8  0   136   136  245K 6.7%
       2     3 smask    1120  1120  gray    1   8  image  no         8  0   136   136 1236B 0.1%
       3     4 image    2543  1553  rgb     3   8  jpeg   no         4  0   231   188 64.6K 0.6%
       3     5 image    1120  1120  rgb     3   8  jpeg   no        14  0   136   136  216K 5.9%
       3     6 smask    1120  1120  gray    1   8  image  no        14  0   136   136 1236B 0.1%
       4     7 image    2543  1553  rgb     3   8  jpeg   no         4  0   231   188 64.6K 0.6%
       5     8 image    2543  1553  rgb     3   8  jpeg   no         4  0   231   188 64.6K 0.6%
       6     9 image    2543  1553  rgb     3   8  jpeg   no         4  0   231   188 64.6K 0.6%
       7    10 image    2543  1553  rgb     3   8  jpeg   no         4  0   231   188 64.6K 0.6%
       8    11 image    2543  1553  rgb     3   8  jpeg   no         4  0   231   188 64.6K 0.6%
       9    12 image    2543  1553  rgb     3   8  jpeg   no         4  0   231   188 64.6K 0.6%
      10    13 image    2543  1553  rgb     3   8  jpeg   no         4  0   231   188 64.6K 0.6%
      11    14 image    2543  1553  rgb     3   8  jpeg   no         4  0   231   188 64.6K 0.6%
      11    15 image     726   429  rgb     3   8  image  no        41  0    66    66 13.6K 1.5%
      11    16 smask     726   429  gray    1   8  image  no        41  0    66    66  343B 0.1%
      12    17 image    2543  1553  rgb     3   8  jpeg   no         4  0   231   188 64.6K 0.6%
      12    18 image     726   429  rgb     3   8  image  no        48  0    66    66 12.4K 1.4%
      12    19 smask     726   429  gray    1   8  image  no        48  0    66    66  343B 0.1%
      13    20 image    2543  1553  rgb     3   8  jpeg   no         4  0   231   188 64.6K 0.6%
      13    21 image     726   429  rgb     3   8  image  no        55  0    66    66 10.6K 1.2%
      13    22 smask     726   429  gray    1   8  image  no        55  0    66    66  343B 0.1%
      14    23 image    2543  1553  rgb     3   8  jpeg   no         4  0   231   188 64.6K 0.6%
      14    24 image     726   429  rgb     3   8  image  no        62  0    66    66 13.1K 1.4%
      14    25 smask     726   429  gray    1   8  image  no        62  0    66    66  343B 0.1%
      15    26 image    2543  1553  rgb     3   8  jpeg   no         4  0   231   188 64.6K 0.6%
      15    27 image     726   429  rgb     3   8  image  no        69  0    66    66 11.9K 1.3%
      15    28 smask     726   429  gray    1   8  image  no        69  0    66    66  343B 0.1%
      16    29 image    2543  1553  rgb     3   8  jpeg   no         4  0   231   188 64.6K 0.6%
      16    30 image     726   429  rgb     3   8  image  no        76  0    66    66 16.2K 1.8%
      16    31 smask     726   429  gray    1   8  image  no        76  0    66    66  343B 0.1%
      17    32 image    2543  1553  rgb     3   8  jpeg   no         4  0   231   188 64.6K 0.6%
      17    33 image     726   429  rgb     3   8  image  no        83  0    66    66 10.8K 1.2%
      17    34 smask     726   429  gray    1   8  image  no        83  0    66    66  343B 0.1%
      18    35 image    2543  1553  rgb     3   8  jpeg   no         4  0   231   188 64.6K 0.6%
      18    36 image     726   429  rgb     3   8  image  no        90  0    66    66 11.2K 1.2%
      18    37 smask     726   429  gray    1   8  image  no        90  0    66    66  343B 0.1%
      19    38 image    2543  1553  rgb     3   8  jpeg   no         4  0   231   188 64.6K 0.6%
      19    39 image     726   429  rgb     3   8  image  no        97  0    66    66 13.3K 1.5%
      19    40 smask     726   429  gray    1   8  image  no        97  0    66    66  343B 0.1%
      20    41 image    2543  1553  rgb     3   8  jpeg   no         4  0   231   188 64.6K 0.6%
      20    42 image     726   429  rgb     3   8  image  no       104  0    66    66 13.4K 1.5%
      20    43 smask     726   429  gray    1   8  image  no       104  0    66    66  343B 0.1%
      21    44 image    2543  1553  rgb     3   8  jpeg   no         4  0   231   188 64.6K 0.6%
      21    45 image     726   429  rgb     3   8  image  no       111  0    66    66 8856B 0.9%
      21    46 smask     726   429  gray    1   8  image  no       111  0    66    66  343B 0.1%
      22    47 image    2543  1553  rgb     3   8  jpeg   no         4  0   231   188 64.6K 0.6%
      22    48 image     726   429  rgb     3   8  image  no       118  0    66    66 8841B 0.9%
      22    49 smask     726   429  gray    1   8  image  no       118  0    66    66  343B 0.1%
      23    50 image    2543  1553  rgb     3   8  jpeg   no         4  0   231   188 64.6K 0.6%
      23    51 image     726   429  rgb     3   8  image  no       125  0    66    66 17.3K 1.9%
      23    52 smask     726   429  gray    1   8  image  no       125  0    66    66  343B 0.1%
      24    53 image    2543  1553  rgb     3   8  jpeg   no         4  0   231   188 64.6K 0.6%
      24    54 image     726   429  rgb     3   8  image  no       132  0    66    66 15.0K 1.6%
      24    55 smask     726   429  gray    1   8  image  no       132  0    66    66  343B 0.1%
      25    56 image    2543  1553  rgb     3   8  jpeg   no         4  0   231   188 64.6K 0.6%
      25    57 image     726   429  rgb     3   8  image  no       139  0    66    66 15.0K 1.6%
      25    58 smask     726   429  gray    1   8  image  no       139  0    66    66  343B 0.1%
      26    59 image    2543  1553  rgb     3   8  jpeg   no         4  0   231   188 64.6K 0.6%
      26    60 image     726   429  rgb     3   8  image  no       146  0    66    66 14.8K 1.6%
      26    61 smask     726   429  gray    1   8  image  no       146  0    66    66  343B 0.1%
      27    62 image    2543  1553  rgb     3   8  jpeg   no         4  0   231   188 64.6K 0.6%
      27    63 image     726   429  rgb     3   8  image  no       153  0    66    66 13.6K 1.5%
      27    64 smask     726   429  gray    1   8  image  no       153  0    66    66  343B 0.1%
      28    65 image    2543  1553  rgb     3   8  jpeg   no         4  0   231   188 64.6K 0.6%
      28    66 image     726   429  rgb     3   8  image  no       160  0    66    66 15.0K 1.6%
      28    67 smask     726   429  gray    1   8  image  no       160  0    66    66  343B 0.1%
      29    68 image    2543  1553  rgb     3   8  jpeg   no         4  0   231   188 64.6K 0.6%
      29    69 image     726   429  rgb     3   8  image  no       167  0    66    66 13.3K 1.5%
      29    70 smask     726   429  gray    1   8  image  no       167  0    66    66  343B 0.1%
      30    71 image    2543  1553  rgb     3   8  jpeg   no         4  0   231   188 64.6K 0.6%
      30    72 image     726   429  rgb     3   8  image  no       174  0    66    66 12.9K 1.4%
      30    73 smask     726   429  gray    1   8  image  no       174  0    66    66  343B 0.1%
      31    74 image    2543  1553  rgb     3   8  jpeg   no         4  0   231   188 64.6K 0.6%
      31    75 image     726   429  rgb     3   8  image  no       181  0    66    66 13.3K 1.5%
      31    76 smask     726   429  gray    1   8  image  no       181  0    66    66  343B 0.1%
      32    77 image    2543  1553  rgb     3   8  jpeg   no         4  0   231   188 64.6K 0.6%
      32    78 image     726   429  rgb     3   8  image  no       188  0    66    66 13.7K 1.5%
      32    79 smask     726   429  gray    1   8  image  no       188  0    66    66  343B 0.1%
      33    80 image    2543  1553  rgb     3   8  jpeg   no         4  0   231   188 64.6K 0.6%
      33    81 image     726   429  rgb     3   8  image  no       195  0    66    66 12.3K 1.3%
      33    82 smask     726   429  gray    1   8  image  no       195  0    66    66  343B 0.1%
      34    83 image    2543  1553  rgb     3   8  jpeg   no         4  0   231   188 64.6K 0.6%
      34    84 image     726   429  rgb     3   8  image  no       202  0    66    66 12.4K 1.4%
      34    85 smask     726   429  gray    1   8  image  no       202  0    66    66  343B 0.1%
      35    86 image    2543  1553  rgb     3   8  jpeg   no         4  0   231   188 64.6K 0.6%
      35    87 image     726   429  rgb     3   8  image  no       209  0    66    66 13.2K 1.5%
      35    88 smask     726   429  gray    1   8  image  no       209  0    66    66  343B 0.1%
      36    89 image    2543  1553  rgb     3   8  jpeg   no         4  0   231   188 64.6K 0.6%
      36    90 image     726   429  rgb     3   8  image  no       216  0    66    66 12.9K 1.4%
      36    91 smask     726   429  gray    1   8  image  no       216  0    66    66  343B 0.1%
      37    92 image    2543  1553  rgb     3   8  jpeg   no         4  0   231   188 64.6K 0.6%
      37    93 image     726   429  rgb     3   8  image  no       223  0    66    66 13.2K 1.5%
      37    94 smask     726   429  gray    1   8  image  no       223  0    66    66  343B 0.1%
      38    95 image    2543  1553  rgb     3   8  jpeg   no         4  0   231   188 64.6K 0.6%
      38    96 image     726   429  rgb     3   8  image  no       230  0    66    66 12.3K 1.4%
      38    97 smask     726   429  gray    1   8  image  no       230  0    66    66  343B 0.1%
      39    98 image    2543  1553  rgb     3   8  jpeg   no         4  0   231   188 64.6K 0.6%
      39    99 image     726   429  rgb     3   8  image  no       237  0    66    66 12.5K 1.4%
      39   100 smask     726   429  gray    1   8  image  no       237  0    66    66  343B 0.1%
      40   101 image    2543  1553  rgb     3   8  jpeg   no         4  0   231   188 64.6K 0.6%
      40   102 image     726   429  rgb     3   8  image  no       244  0    66    66 12.4K 1.4%
      40   103 smask     726   429  gray    1   8  image  no       244  0    66    66  343B 0.1%
      41   104 image    2543  1553  rgb     3   8  jpeg   no         4  0   231   188 64.6K 0.6%
      41   105 image     726   429  rgb     3   8  image  no       251  0    66    66 12.5K 1.4%
      41   106 smask     726   429  gray    1   8  image  no       251  0    66    66  343B 0.1%
      42   107 image    2543  1553  rgb     3   8  jpeg   no         4  0   231   188 64.6K 0.6%
      42   108 image     726   429  rgb     3   8  image  no       258  0    66    66 17.3K 1.9%
      42   109 smask     726   429  gray    1   8  image  no       258  0    66    66  343B 0.1%
      43   110 image    2543  1553  rgb     3   8  jpeg   no         4  0   231   188 64.6K 0.6%
      43   111 image     726   429  rgb     3   8  image  no       265  0    66    66 14.7K 1.6%
      43   112 smask     726   429  gray    1   8  image  no       265  0    66    66  343B 0.1%
      44   113 image    2543  1553  rgb     3   8  jpeg   no         4  0   231   188 64.6K 0.6%
      44   114 image     726   429  rgb     3   8  image  no       272  0    66    66 15.5K 1.7%
      44   115 smask     726   429  gray    1   8  image  no       272  0    66    66  343B 0.1%
      45   116 image    2543  1553  rgb     3   8  jpeg   no         4  0   231   188 64.6K 0.6%
      45   117 image     726   429  rgb     3   8  image  no       279  0    66    66 12.8K 1.4%
      45   118 smask     726   429  gray    1   8  image  no       279  0    66    66  343B 0.1%
      46   119 image    2543  1553  rgb     3   8  jpeg   no         4  0   231   188 64.6K 0.6%
      46   120 image     726   429  rgb     3   8  image  no       286  0    66    66 15.0K 1.6%
      46   121 smask     726   429  gray    1   8  image  no       286  0    66    66  343B 0.1%
      47   122 image    2543  1553  rgb     3   8  jpeg   no         4  0   231   188 64.6K 0.6%
      47   123 image     726   429  rgb     3   8  image  no       293  0    66    66 14.4K 1.6%
      47   124 smask     726   429  gray    1   8  image  no       293  0    66    66  343B 0.1%
      48   125 image    2543  1553  rgb     3   8  jpeg   no         4  0   231   188 64.6K 0.6%
      48   126 image     726   429  rgb     3   8  image  no       300  0    66    66 15.6K 1.7%
      48   127 smask     726   429  gray    1   8  image  no       300  0    66    66  343B 0.1%
      49   128 image    2543  1553  rgb     3   8  jpeg   no         4  0   231   188 64.6K 0.6%
      49   129 image     726   429  rgb     3   8  image  no       307  0    66    66 13.6K 1.5%
      49   130 smask     726   429  gray    1   8  image  no       307  0    66    66  343B 0.1%
      50   131 image    2543  1553  rgb     3   8  jpeg   no         4  0   231   188 64.6K 0.6%
      50   132 image     726   429  rgb     3   8  image  no       314  0    66    66 14.3K 1.6%
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      51   134 image    2543  1553  rgb     3   8  jpeg   no         4  0   231   188 64.6K 0.6%
      51   135 image     726   429  rgb     3   8  image  no       321  0    66    66 15.2K 1.7%
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      52   137 image    2543  1553  rgb     3   8  jpeg   no         4  0   231   188 64.6K 0.6%
      52   138 image     726   429  rgb     3   8  image  no       328  0    66    66 14.7K 1.6%
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      53   140 image    2543  1553  rgb     3   8  jpeg   no         4  0   231   188 64.6K 0.6%
      53   141 image     726   429  rgb     3   8  image  no       335  0    66    66 12.3K 1.3%
      53   142 smask     726   429  gray    1   8  image  no       335  0    66    66  343B 0.1%
      54   143 image    2543  1553  rgb     3   8  jpeg   no         4  0   231   188 64.6K 0.6%
      54   144 image     726   429  rgb     3   8  image  no       342  0    66    66 12.5K 1.4%
      54   145 smask     726   429  gray    1   8  image  no       342  0    66    66  343B 0.1%
      55   146 image    2543  1553  rgb     3   8  jpeg   no         4  0   231   188 64.6K 0.6%
      55   147 image     726   429  rgb     3   8  image  no       349  0    66    66 12.3K 1.3%
      55   148 smask     726   429  gray    1   8  image  no       349  0    66    66  343B 0.1%
      56   149 image    2543  1553  rgb     3   8  jpeg   no         4  0   231   188 64.6K 0.6%
      56   150 image     726   429  rgb     3   8  image  no       356  0    66    66 12.8K 1.4%
      56   151 smask     726   429  gray    1   8  image  no       356  0    66    66  343B 0.1%


  • Linux and Windows Dual Boot Issue NIC Won't work After Booting Windows


    In Windows, with some NICs, especially Intel, Windows may enable features on the card that break it in Linux.  It is hard to troubleshoot as what you'll see is that the NIC is still detected in Linux, the NIC/port will be up but nothing will work (eg. DHCP requests or even static IPs won't work).  You may see STP bridge traffic but that is all.

    In a corporate environment this can result in many calls to support and is essentially downtime and an unnecessary waste of resources.

    Solution - Disable any Power Management and Wake on LAN Features in Windows

    Generally these are any of the "Wake on LAN" or "Wake on Magic" or simiilarly named features.  Make sure you disable those under Device Manager for any of your NICs.

    Quick Fix - If you have no control over the Windows NIC

    The quick fix for this (if you don't have control over Windows) is powering off the machine and powering back.


  • Cisco CME How To Enable ACD hunt groups


    In our example below, we create 2 hunt groups.

    You could assume the #1 group is sales and #2 group is support etc.. and you can create more as needed.

    The main part of hunt is the "list" option where you add each phone number that is to be part of the group

    ephone-hunt 1 sequential
     pilot 2001
     list 1234
     timeout 10

    ephone-hunt 2 sequential
     pilot 2002
     list 5678
     timeout 10

     

    ephone-hunt 1 sequential
    This sets up the first hunt group. The keyword sequential specifies that calls will be sent to each phone in the list one by one until someone answers, or the list is exhausted.

    pilot 2001: This is the number used to reach the hunt group. When someone calls this number (2001), the system will follow the hunt sequence.


    list 1234: This is the list of ephone-dn (directory numbers) the call will be routed to. In this case, the call will be sequentially forwarded to phones associated with extension 1234.


    timeout 10: This is the amount of time (in seconds) the system will wait before trying the next phone in the sequence. In this case, it will wait for 10 seconds before forwarding the call to the next phone.


  • How to install gns3 on Linux Ubuntu Mint


     

    Step 01 - Download

    Visit https://gns3.com/software/download

     

     

    Click on "Linux" on the side under "Installation".

    Run these commands:

    What we are doing is adding the repo/ppa for gns3, then updating apt and then install gns3 and the gui.

    sudo add-apt-repository ppa:gns3/ppa
    sudo apt update                                
    sudo apt install gns3-gui gns3-server

     

    Run gns3 from the terminal by typing "gns3"


  • How to convert audio for Asterisk .wav format


    In our example we take "sound.mp3" and convert it to .wav.

    Generally Asterisk for its wave needs one audio channel (-ac 1) / mono and 8000hz (-ar 8000) instead of the standard CD/MP3 of 44100hz.

    Here is the command to convert into Asterisk .wav format:

     ffmpeg -i sound.mp3 -ac 1 -ar 8000 sound.wav

    Errors Asterisk may give you if the format is wrong:

        -- Executing [91781891@cme:3] Playback("SIP/234-00000008", "/var/lib/asterisk/sounds/sound") in new stack
    [Sep 26 15:45:32] WARNING[4400][C-00000009]: format_wav.c:111 check_header_fmt: Unexpected frequency mismatch 44100 (expecting 8000)
    [Sep 26 15:45:32] WARNING[4400][C-00000009]: file.c:510 fn_wrapper: Unable to open format wav
    [Sep 26 15:45:32] WARNING[4400][C-00000009]: file.c:1303 ast_streamfile: Unable to open /var/lib/asterisk/sounds/sound (format (ulaw)): No such file or directory
    [Sep 26 15:45:32] WARNING[4400][C-00000009]: app_playback.c:513 playback_exec: Playback failed on SIP/234-00000008 for /var/lib/asterisk/sounds/sound
     

        -- Executing [9132131@cme:3] Playback("SIP/234-00000006", "/var/lib/asterisk/sounds/sound") in new stack
    [Sep 26 15:44:18] WARNING[4384][C-00000007]: format_wav.c:102 check_header_fmt: Not in mono 2
    [Sep 26 15:44:18] WARNING[4384][C-00000007]: file.c:510 fn_wrapper: Unable to open format wav
    [Sep 26 15:44:18] WARNING[4384][C-00000007]: file.c:1303 ast_streamfile: Unable to open /var/lib/asterisk/sounds/sound (format (ulaw)): No such file or directory
    [Sep 26 15:44:18] WARNING[4384][C-00000007]: app_playback.c:513 playback_exec: Playback failed on SIP/234-00000006 for /var/lib/asterisk/sounds/sound
     


  • Using Cisco CME Router with Asterisk as a dial-peer


    #Remember that you need a valid gateway IP unless the Asterisk server is on the same subnet and LAN

    Set Valid Gateway IP (if you don't have one already)

    ip route 0.0.0.0 0.0.0.0 GATEWAYIP

    Enable VOIP Trust

    voice service voip
     ip address trusted list
      ipv4 0.0.0.0 0.0.0.0
      sip

    Set Credentials For Asterisk and Register To Asterisk

    sip-ua
     credentials username username password password realm asterisk
     registrar ipv4:ASTERISKIP expires 3600
     sip-server ipv4:ASTERISKIP

     

    Set a Dial-Peer which uses Asterisk

    This is so we can actually make calls out through it.  In our case we are simulating a typical office setup where you dial 9 for outside access.  This is a very "unoptimized" way that takes too long, in reality you probably want dial-peers that have more specific matches eg for local numbers (713-403-1234) format.

    dial-peer voice 123 voip
     destination-pattern 9T
     session protocol sipv2
     session target ipv4:ASTERISKIP
     codec g711ulaw

    At this point if you have done things correctly, all calls beginning with a 9 will go out through Asterisk (unless you already have more specific dial-peers).

    Remember Asterisk must be configured to accept the client.  In some cases, you may need to modify the security users for the "friend" on Asterisk.

     


  • Cisco CME How To Configure SIP Trunk VOIP


    This is how we configure outside PSTN access or dialing through another SIP trunk.  Beware that this a simplistic example that neglects most security including SRTP

    First you'll need to be in config mode:

    Step - 1 Enter Voice Service VOIP security options

    There are more options but for now we'll just focus on security/allowing connections to and from our phones and the trunk.

    Router(config)#voice service voip
     

    Then enter the trusted IP list:

    Router(conf-voi-serv)#ip address trusted list

    Set Trusted IPs:

    In practice you would set the static IPs/ranges of your SIP trunk(s)

    o be easy/insecure for testing just set any IP as being trusted (for trusted/LAN/testing only!)

    Router(cfg-iptrust-list)#ipv4 0.0.0.0 0.0.0.0

    To set a specify IP

    This could be one of your SIP trunk IPs

    Router(cfg-iptrust-list)#ipv4 192.168.5.20 255.255.255.0

    To set a range (/24):

    This may be a range of phones on your internal network that you want to trust.

    Router(cfg-iptrust-list)#ipv4 10.0.0.0 255.255.255.0

    You can add more entries as needed.

    Step 2 - Setup Trunk

    We'll set our preferred codec list

    Router(config)#voice class codec 1


    Router(config-class)#codec preference 1 g711ulaw
    Router(config-class)#codec preference 2 g729r8

     

    Go back to config mode:

    Here is how we setup our trunk, depending on your service provider it may have different requirements (most providers will provide example configs).

    Basically we are just authenticating using our username and password from our SIP provider and the last part "realm" is the IP or domain of the server.

    authentication command will use the default username/password when authenticating. 

    credentials command is really the same but you can have multiple of these (eg. if you have accounts with multiple SIP trunks/providers).

    Router(config)#sip-ua

    Router(config-sip-ua)#credentials username YOUR-USERNAME password 0 YOUR-PASSWORD realm IP-or-domain-of-Trunk.com

    There is another option for credentials which can specify a specific phone number tied to the account (some providers do this and some may not).


    Router(config-sip-ua)#credentials number 1234 username YOUR-USERNAME password 0 YOUR-PASSWORD realm IP-or-domain-of-Trunk.com

     

    Router(config-sip-ua)#authentication username YOUR-USERNAME password 0 YOUR-PASSWORD realm IP-or-domain-of-Trunk.com

    Step 3 - Use Trunk for outgoing calls

    This is a generic use the trunk for all non-local calls, but in practice, you may have many providers and may have a more specific dial pattern so perhaps calls for country ABC go through dialpeer 4444 to give better or cheaper calls to a specific destination.

    Be in config mode

    In our example we call our dial-peer "123" but it could be any unused number.

    Create the dial-peer

    Router(config)#dial-peer voice 123 voip

    We set destination pattern as anything starting with a 9 (the idea is that 9 is for dialing out, change according to your needs).

    Router(config-dial-peer)#destination-pattern 9T

    We set the protocol as sip, since we use this protocol for a SIP trunk of course.

    Router(config-dial-peer)#session protocol sipv2

    We set the codec, a very standard g711ulaw, but change according to your needs (what your provider also must support).

    Router(config-dial-peer)#codec g711ulaw

    Set callerid (usually should be the number your provider assigned):

    In this example we set callerid as "12345678"

    Router(config-dial-peer)#clid network-number 12345678

    Set your session target

    It's Cisco talk about which IP/domain do we send the calls to when this dial-peer is matched?

    You can use a hostname like this

    Router(config-dial-peer)#session target dns:your-server-domain

    Or preferably if they have a static IP use this:

    Router(config-dial-peer)#session target ipv4:192.168.5.254

     

    Congrats, after this you should be able to make outgoing calls to the PSTN!

     

     


  • Virtualbox host Only Network Error Failed to save host network interface parameter - Cannot change gateway IP of host only network


     

    In newer versions this is a very stubborn issue.  Here is how you fix it.

    Step 1 - Create networks.conf

    sudo mkdir /etc/vbox/

    sudo vi /etc/vbox/networks.conf

    put this in:

    In our case we can use the slash /16 range of 192.168.0..0, change the subnet according to your needs

    * 192.168.0.0/16

    Step 2 - Restart and close Virtualbox

    service virtualbox restart

    now reopen the GUI.

    Edit your host-only network, you will find the IP changes back.  However, if you close and open Vbox you should see that it did indeed set.

     


  • Cisco CME and C7200 Router Testing and Learning Environment on Ubuntu 20+ Setup Tutorial Guide


    Since newer versions of Ubuntu like 20, you will find there is no longer dynagen and that the dynamips provided is faulty and will segfault each time:

    Cisco Router Simulation Platform (version 0.2.14-amd64/Linux stable)
    Copyright (c) 2005-2011 Christophe Fillot.
    Build date: Apr  3 2018 12:20:29

    Local UUID: 3c1c0b7f-2fab-4fda-b40b-74841d1bcfe0

    Instance ID set to 1.
    netio_tap_create: unable to open TAP device tap1 (No such file or directory)
    C7200 'default': unable to create NETIO descriptor for slot 0
    IOS image file: c7200-adventerprisek9-mz.151-4.M.bin

    ILT: loaded table "mips64j" from cache.
    ILT: loaded table "mips64e" from cache.
    ILT: loaded table "ppc32j" from cache.
    ILT: loaded table "ppc32e" from cache.
    CPU0: carved JIT exec zone of 64 Mb into 2048 pages of 32 Kb.
    C7200 instance 'default' (id 1):
      VM Status  : 0
      RAM size   : 256 Mb
      IOMEM size : 0 Mb
      NVRAM size : 128 Kb
      NPE model  : npe-400
      Midplane   : vxr
      IOS image  : c7200-adventerprisek9-mz.151-4.M.bin

    Loading ELF file 'c7200-adventerprisek9-mz.151-4.M.bin'...
    ELF entry point: 0x80008000

    C7200 'default': starting simulation (CPU0 PC=0xffffffffbfc00000), JIT enabled.

    Segmentation fault (core dumped)

     

     

    Solution - Compile The Newer Version of dynamips

    As you can see from the output, the newest version in the repo is 0.2.14 which was built in 2018.  The versioning numbers themselves, without being a whole number, are understandly "alpha" sounding versions.

    Clearly, something has to be fixed and there is no newer version in the repos, so we'll have to compile our own.

    Fortunately the project was picked up and lives on here: https://github.com/GNS3/dynamips

    Step 1 - Get Required Packages

    apt install git libpcap0.8-dev libelf-dev cmake

    Step 2 - Get Source Code:

    git clone https://github.com/GNS3/dynamips

    Cloning into 'dynamips'...
    remote: Enumerating objects: 4195, done.
    remote: Counting objects: 100% (775/775), done.
    remote: Compressing objects: 100% (134/134), done.
    remote: Total 4195 (delta 694), reused 641 (delta 641), pack-reused 3420 (from 1)
    Receiving objects: 100% (4195/4195), 2.63 MiB | 20.39 MiB/s, done.
    Resolving deltas: 100% (3019/3019), done.

     

    Step 3 - Prepare Environment and Compile

    cd dynamips

    mkdir build

    cd build

    cmake .. -DDYNAMIPS_CODE=stable

    You should see this at the end of successful compilation:

    -- DYNAMIPS_FLAGS=-m64;-Wall;-O2;-fomit-frame-pointer
    -- DYNAMIPS_DEFINITIONS=-DHAS_POSIX_MEMALIGN=1;-DDYNAMIPS_VERSION="0.2.23";-DJIT_ARCH="amd64";-DJIT_CPU=CPU_amd64;-DMIPS64_ARCH_INC_FILE="mips64_amd64_trans.h";-DPPC32_ARCH_INC_FILE="ppc32_amd64_trans.h";-D_FILE_OFFSET_BITS=64;-D_LARGEFILE_SOURCE;-D_LARGEFILE64_SOURCE;-DLINUX_ETH;-DGEN_ETH;-DHAS_RFC2553=1;-DOSNAME=Linux
    -- DYNAMIPS_INCLUDES=/usr/include
    -- DYNAMIPS_LIBRARIES=dl;rt;nsl;/usr/lib/x86_64-linux-gnu/libelf.so;-lpthread;/usr/lib/x86_64-linux-gnu/libpcap.so
    -- configure - END
    Summary:
      CMAKE_INSTALL_PREFIX               : /usr/local
      DYNAMIPS_ARCH                      : amd64
      DYNAMIPS_CODE                      : stable
      DYNAMIPS_RENAME                    : dynamips_amd64_stable -> dynamips  (auto)
      BUILD_NVRAM_EXPORT                 : ON
      BUILD_UDP_SEND                     : OFF
      BUILD_UDP_RECV                     : OFF
      Large File support                 : ENABLE_LARGEFILE=ON
      Linux Ethernet (RAW sockets)       : ENABLE_LINUX_ETH=ON  (linux_eth)
      Generic Ethernet (libpcap/WinPcap) : ENABLE_GEN_ETH=ON  (gen_eth)
      IPv6 support (RFC 2553)            : ENABLE_IPV6=ON
    -- Configuring done
    -- Generating done
    -- Build files have been written to: /root/dynamips/build
    root@d038b4fbf6e1:~/dynamips/build#

     

    Now make and install

    make

    make install

    ln -s /usr/local/bin/dynamips /bin

    Confirm it is the right version:

    You should as below that it is version 0.2.23 and the compilation date should be the date and time you did this.

    dynamips|head
    Please specify an IOS image filename
    Cisco Router Simulation Platform (version 0.2.23-amd64/Linux stable)
    Copyright (c) 2005-2011 Christophe Fillot.
    Build date: Sep 16 2024 21:09:39

     

     

     


  • Abusive IP ranges blacklist


    Make sure this makes sense for you but I've started to block a lot of commercial Cloud services and easily accessible providers as they are a very high source of abusive traffic.  The cost savings for a lot of organizations are huge, as you now have less bandwidth usage and less resource usage from garbage/bot/malicious traffic.  This mainly works for when you can be reasonably sure that your audience has no business visiting your service(s) from freely accessible commercial IP space (eg. Amazon, Huawei Cloud, Oracle Cloud etc..).  In general, any large service that offers Cloud to anyone without proper authentication, for cheap or offer any free trials/refunds (having a credit card is not enough authentication) is going to be a huge source of abusive traffic.

    Some is not meant to be abusive but many of the SEO tools and services will scan your site, often causing a huge load by constantly hitting your services every second or several times per second.  Even if this does not slow your services down, there is a cost to it and you may be surprised at how much it is costing you or how much extra CPU, RAM and disk IO is wasted to abuse.

    This will serve as a comprehensive list of suggested ranges to block.  If this causes issues from legitimate traffic, make sure you have a mechanism in place to whitelist "known good IPs" that you, your work or clients may be using.  Also discourage the use of rotating IPs unless there is a good reason, all traffic should be received by static IPs that are whitelisted.

    If you have publicly accessible services, there are generally not too many good reasons why users should be hitting you from commercial cloud services or VPN providers (unless your users genuinely need a VPN for security or to access your services).  These services are a huge waste of resources as in many cases, I've seen 80-90% of traffic is just garbage traffic, and often it is a competitor or bad actor using these services to actively attack public services.

    Now if you happen to know a service that uses a cloud service, such as Pinterest using Amazon and don't want to block it, you can whitelist their IP ranges as most reputable services will list their range of IPs for this purpose.

    Note that this is not recommended as replacement for good security and firewalls but it already reduces the abusive traffic angle.  

    However, given that the Cloud providers offer services to anyone, they are still a source of intentionally maliicious traffic because throw away accounts are allowed on many Cloud services (eg. free trial that one uses with a prepaid credit card for the purposes of abuse).

    The presence or lack of presence of a Cloud provider here does not mean they are better or worse for abuse, but I just haven't gotten a chance to list them here yet.

    All proposed blocks are based on real-world examples (eg. abusive traffic coming from those hosts).

    In another post we'll list a bunch of bad user agents to block.

    When not to use Cloud Providers

    1.) If you value privacy or control of your data

    2.) If you are using it as a VPN or other outward facing service there is a good chance it may be transparently blocked.

    3.) If you must use a VPN, it is best to run it from one of your office's legitimate internet connection as these IPs are the least likely to be blocked.

    Where are they really from?

    Beware that user agents can be forged, many DDOS services will try to masquerade as a legitimate service or scanning tool but you will often find that there is no relation (eg. a bot hitting your site that has the Google bot agent set but is really from Digital Ocean and not truly Google).

    Other proposed blocks:

    In general any cheap provider and any large provider should probably be blocked.  This especially means providers that offer a free trial or X-day money back guarantee.

    • GCP (Google Cloud)
    • Vultr (Cloud)
    • Hetzner (Cheap host)
    • Microsoft Azure
    • Oracle Cloud
    • Worldstream (smaller but abusive traffic)
    • Scaleway
    • OVH
    • Leaseweb

    Block SEO Tools:

    Popular tools include:

    • Moz
    • Ahrefs
    • SEMRush
    • Majestic SEO

    If you aren't using the tools for the particular site(s) running then these should be blocked or at least give them a 403 based on the user agent.

    We've seen several SEO tools used at once by determined attacker as a similar impact as DDOS by having reports run on the target site/URL done by several SEO tools or other scanning site performance tools that were otherwise legitimate.

    Block Search Engines/Crawlers:

    If you don't get traffic from certain search engines then consider blocking them.  There are dozens of other smaller crawling services that cause huge issues.

    Block AI Tools:

    This has the double effect of preserving your resources and stopping AI from stealing or using your info in their replies.

     

    Our experience is that most providers simply don't have time or care about the large amount of abuse reports they get (eg. complain and you will usually never receive any response or action).

    Huawei Cloud is a good idea to block as I've seen too many cases of abuse from their ranges despite them not being considered such a huge provider compared to AWS.

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    Digital Ocean

    Digital Ocean is a huge offender based on experience and we have never seen any response to abuse complaints.

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     34.128.62.0/23
     

    Hetzner

    5.9.0.0/16
    5.75.128.0/17
    5.161.0.0/21
    5.161.164.0/22
    5.161.168.0/21
    5.161.238.0/23
    5.222.0.0/15
    23.88.0.0/17
    37.27.0.0/16
    45.145.227.0/24
    46.4.0.0/16
    46.62.128.0/17
    49.12.0.0/15
    65.21.0.0/16
    65.108.0.0/15
    77.42.0.0/17
    78.46.0.0/15
    78.138.62.0/24
    85.10.192.0/18
    88.99.0.0/16
    88.198.0.0/16
    89.167.0.0/17
    91.99.0.0/16
    91.107.128.0/17
    91.190.240.0/21
    91.233.8.0/22
    94.130.0.0/16
    95.216.0.0/15
    116.202.0.0/15
    128.140.0.0/17
    135.181.0.0/16
    136.243.0.0/16
    138.199.128.0/17
    138.201.0.0/16
    142.132.128.0/17
    144.76.0.0/16
    148.251.0.0/16
    157.90.0.0/16
    157.180.0.0/17
    159.69.0.0/16
    162.55.0.0/16
    167.233.0.0/16
    167.235.0.0/16
    168.119.0.0/16
    171.25.225.0/24
    176.9.0.0/16
    178.63.0.0/16
    178.212.75.0/24
    185.12.64.0/22
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    185.157.83.0/24
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    185.171.224.0/22
    185.189.228.0/22
    185.213.45.0/24
    185.216.237.0/24
    185.226.99.0/24
    185.228.8.0/23
    185.242.76.0/24
    185.253.111.0/24
    188.34.128.0/17
    188.40.0.0/16
    188.245.0.0/16
    193.25.170.0/23
    193.110.6.0/23
    193.163.198.0/24
    194.42.180.0/22
    194.42.184.0/22
    194.62.106.0/24
    195.60.226.0/24
    195.201.0.0/16
    195.248.224.0/24
    197.242.84.0/22
    201.131.3.0/24
    204.29.146.0/24
    213.133.96.0/19
    213.232.193.0/24
    213.239.192.0/18
    216.55.108.0/22

    ahrefs (SEO tool)

    You can often see your logs dominated by their IPs.  Block all of ahrefs listed IPs.

    On any random day, a lot of sites will receive quite a bit of traffic and high frequency queries from ahrefs.  If you aren't using their SEO service there is no point in allowing their traffic.

    54.36.148.0/24
    54.36.149.0/24
     
    195.154.122.0/24
    195.154.123.0/24
    195.154.126.0/24
    195.154.127.0/24
     
    51.222.253.0/26

    167.114.139.0/24
    54.39.6.0/24
    54.39.136.0/24
    142.44.233.0/24
    54.39.0.0/24
    51.161.37.0/24
    142.44.220.0/24
    54.39.210.0/24
    54.39.203.0/24
    148.113.130.0/24
    51.222.95.0/24
    51.161.65.0/24
    54.39.89.0/24
    15.235.27.0/24
    148.113.128.0/24
    15.235.96.0/24
    142.44.228.0/24
    142.44.225.0/24
    51.222.168.0/24
    15.235.98.0/24
     
    54.37.118.64/27
    51.75.236.128/27
    92.222.108.96/27
    51.68.247.192/27
    176.31.139.0/27
    5.39.1.224/27
    92.222.104.192/27
    37.59.204.128/27
    94.23.188.192/27
    5.39.109.160/27
     
    51.195.244.0/24
    198.244.168.0/24
    198.244.226.0/24
    51.195.183.0/24
    198.244.183.0/24
    54.38.147.0/24
    198.244.240.0/24
    198.244.242.0/24
    51.89.129.0/24
    51.195.215.0/24

    168.119.68.0/24
    198.244.186.0/24
    202.94.84.0/24

    168.119.64.0/24
    168.119.65.0/24

     


  • How to Install Any OS on a Physical Drive from Windows Using VMware Workstation (Linux, Windows, BSD)


    Uses:

    • Install OS on physical drive
    • Linux installation VMware
    • Install Windows on physical drive
    • Boot OS from physical drive
    • VMware Workstation tutorial
    • Linux virtual machine to physical disk
    • Windows to Linux migration
    • Dual boot OS installation
    • Boot from external SSD
    • Linux, Windows, BSD installation guide
    • Physical drive boot OS
    • Create bootable OS drive VMware
    • Install OS on external drive

    Description:

    "Learn how to install any operating system—Linux, BSD, Windows, and more—on a physical drive from within Windows using VMware Workstation! This step-by-step guide shows you how to set up any OS on an external or internal drive and boot directly from it. Whether you're looking to dual boot or completely migrate from Windows to a new OS, this tutorial covers everything you need. You don’t need a bootable USB drive—everything is done directly through VMware Workstation on Windows.

    🔹 What you’ll learn:

    • Installing any OS (Linux, BSD, Windows, etc.) on a physical disk using VMware Workstation
    • Creating a bootable drive from Windows
    • Dual boot setup with Windows and another OS
    • Setting up any OS to boot from an external or internal drive
    • Troubleshooting common installation issues

    🔹 Tools needed:

    • VMware Workstation
    • OS ISO file (Linux, BSD, Windows, etc.)
    • Physical drive (internal/external HDD or SSD)

    Youtube Video of Installing Linux to a physical drive from VMWare Workstation in Windows.

    Step 1 - Open the "Disk Management Tool" in Windows

    In this example there is a disk 0 and disk 1.  The easiest way is to verify by size, however if both drives are similar in size then the better way is to right click on each disk and click "Properties"

     

    As we can see below Disk 0 is a WDC drive ( Western Digital ), if we know there's no other Western Digital drive and this is the one we want to install our OS to, choose this drive.

     

     

    Step 2 - Create a new VM in VMWare Workstation

    Open VMWare Workstation as "Administrator" and click "File -> New Virtual Machine" to create a new VM.

     

    Step 3 - Create VM as "Custom (advanced)"

    This just has the advantage of allowing us to have the Physical Drive attached initially as the only drive in VMWare rather than going back and modifying the storage settings/HDDs later on.

     

     Step 4 - Choose the OS

    In our example we are installing Ubuntu 64 bit, it's important to choose the correct OS type and even more important to choose the right architecture (eg 64 bit).  This becomes more apparent later on if the intended computer you want to boot your installed OS on uses EFI (EFI mode can only be enabled easily when there is the 64-bit architecture selected).

     

     Step 5 - Choose Your Physical Disk

    This part is crucial and critical, if you mess this up you could delete your crypto keys or family photos by accident!  If possible make sure all other drives/storage devices are disconnected or disabled by this time.

    • Click "Use physical disk (for advanced users)" and then we'll select the physical drive#
    • Remember that the drive number corresponds to the drive we identify in Disk Management (in our case we want to install to Drive 0 which we showed earlier is our WDC drive).

    Make sure that you make proper note of the physical drive so you don't wipe the wrong drive and lose data!

     

    Once again we choose PhysicalDrive0 because it corresponds to the identified "Disk 0" in Disk Management.  You need to verify your physical drive number or you may wipe your data on an unintended drive.

     

    After this point all the defaults are normally fine (continue to click next through the menu to create the VM).

    Step 6 - Set EFI boot mode if you need

    If your target device will be booting by EFI you need to edit your VM by going to Settings and then "Options" and "Advanced" and choose UEFI as the boot mode.  This is not necessary if you will be booting by MBR (however many newer systems will only boot EFI)

     

    Step 7 - Boot your .iso and install to your physical drive.

    Install your OS like it's a normal physical machine, once the install is completed, power off the VM and you can now boot the drive you installed to on the same or other computer.


  • CDN Cloudflare how to set and preserve the real IP of the client without modifying application code on Apache


    Your frontend CDN (eg. Cloudflare or even your own load balancer/proxy) must be sending the X-Forwarded-For and you must be running Apache on the backend.
    This solves the problem where your logs and services will only see the proxy/CDN IP and not the real client IP.

    mod_rpaf will fix all of this

    This solution transparently sets the real IP of the client for Apache and any services that rely on the REMOTE_ADDR without having to modify any code.
     

    Install the right tools:


    #install the devel tools and gcc for your distro and git
    yum -y install httpd-devel gcc git

     

    Get the mod_rpaf source code

     

    #let's git the mod_rpaf module (most distros don't have this as a package installable module) so we have to build it ourselves
    cd ~
    git clone https://github.com/gnif/mod_rpaf.git
    cd mod_rpaf

     

    Compile mod_rpaf

     


    #let's compile and install the mod_rpaf.c code
    apxs -i -c -n rpaf mod_rpaf.c


     

    Edit httpd.conf

    #edit the httpd.conf for Apache to enable mod_rpaf, be sure to set the RPAF_ProxyIPs to whatever IPs your CDN/proxy uses otherwise the original CDN IP will still be presented to Apache

    Edit the two example of IPs below to be your CDN/Proxy/LoadBalancer IPs (if you only have 1 IP then only put 1 there).

    LoadModule rpaf_module modules/mod_rpaf.so


        RPAF_Enable             On
        RPAF_Header             X-Forwarded-For
        RPAF_ProxyIPs           1.2.3.4 5.6.7.8
        RPAF_SetHostName        On
        RPAF_SetHTTPS           On
        RPAF_SetPort            On


     

    #remember to restart httpd/apache


    systemctl restart httpd
    #now remove gcc and httpd-devel and git for security reasons
    yum -y remove gcc httpd-devel git

     


  • CentOS 7 fix Could not retrieve mirrorlist http://mirrorlist.centos.org/?release=7&arch=x86_64&repo=os&infra=container error was 14: curl#6 -


     yum update
    Loaded plugins: fastestmirror, ovl
    Determining fastest mirrors
    Could not retrieve mirrorlist http://mirrorlist.centos.org/?release=7&arch=x86_64&repo=os&infra=container error was
    14: curl#6 - "Could not resolve host: mirrorlist.centos.org; Unknown error"


     One of the configured repositories failed (Unknown),
     and yum doesn't have enough cached data to continue. At this point the only
     safe thing yum can do is fail. There are a few ways to work "fix" this:

         1. Contact the upstream for the repository and get them to fix the problem.

         2. Reconfigure the baseurl/etc. for the repository, to point to a working
            upstream. This is most often useful if you are using a newer
            distribution release than is supported by the repository (and the
            packages for the previous distribution release still work).

         3. Run the command with the repository temporarily disabled
                yum --disablerepo= ...

         4. Disable the repository permanently, so yum won't use it by default. Yum
            will then just ignore the repository until you permanently enable it
            again or use --enablerepo for temporary usage:

                yum-config-manager --disable
            or
                subscription-manager repos --disable=

         5. Configure the failing repository to be skipped, if it is unavailable.
            Note that yum will try to contact the repo. when it runs most commands,
            so will have to try and fail each time (and thus. yum will be be much
            slower). If it is a very temporary problem though, this is often a nice
            compromise:

                yum-config-manager --save --setopt=.skip_if_unavailable=true

    Cannot find a valid baseurl for repo: base/7/x86_64

     

    The issue is that CentOS 7 went EOL in June 2024, but you can still access the packages in the CentOS vault for the last 7.9.2009 release for testing purposes or to create an environment to update to AlmaLinux or another newer distro.


    Solution - Replace the contents of the Base Repo file "/etc/yum.repos.d/CentOS-Base.repo" as below:


    [base]
    name=CentOS-$releasever - Base
    baseurl=http://vault.centos.org/7.9.2009/os/$basearch/
    gpgcheck=1
    gpgkey=file:///etc/pki/rpm-gpg/RPM-GPG-KEY-CentOS-7

    [updates]
    name=CentOS-$releasever - Updates
    baseurl=http://vault.centos.org/7.9.2009/updates/$basearch/
    gpgcheck=1
    gpgkey=file:///etc/pki/rpm-gpg/RPM-GPG-KEY-CentOS-7

    [extras]
    name=CentOS-$releasever - Extras
    baseurl=http://vault.centos.org/7.9.2009/extras/$basearch/
    gpgcheck=1
    gpgkey=file:///etc/pki/rpm-gpg/RPM-GPG-KEY-CentOS-7

    [centosplus]
    name=CentOS-$releasever - Plus
    baseurl=http://vault.centos.org/7.9.2009/centosplus/$basearch/
    gpgcheck=1
    enabled=0
    gpgkey=file:///etc/pki/rpm-gpg/RPM-GPG-KEY-CentOS-7

     

    Solution for the SCLo repo

    yum install centos-release-scl

    /etc/yum.repos.d/CentOS-SCLo-scl.repo


    [centos-sclo-sclo]
    name=CentOS-7 - SCLo sclo
    baseurl=http://vault.centos.org/7.9.2009/sclo/$basearch/sclo/
    gpgcheck=1
    enabled=1
    gpgkey=file:///etc/pki/rpm-gpg/RPM-GPG-KEY-CentOS-7

    [centos-sclo-sclo-source]
    name=CentOS-7 - SCLo sclo Source
    baseurl=http://vault.centos.org/7.9.2009/sclo/Source/sclo/
    gpgcheck=1
    enabled=0
    gpgkey=file:///etc/pki/rpm-gpg/RPM-GPG-KEY-CentOS-7

     

    /etc/yum.repos.d/CentOS-SCLo-scl      


    [centos-sclo-rh]
    name=CentOS-7 - SCLo rh
    baseurl=http://vault.centos.org/7.9.2009/sclo/$basearch/rh/
    gpgcheck=1
    enabled=1
    gpgkey=file:///etc/pki/rpm-gpg/RPM-GPG-KEY-CentOS-7

    [centos-sclo-rh-source]
    name=CentOS-7 - SCLo rh Source
    baseurl=http://vault.centos.org/7.9.2009/sclo/Source/rh/
    gpgcheck=1
    enabled=0
    gpgkey=file:///etc/pki/rpm-gpg/RPM-GPG-KEY-CentOS-7

     

     

     


  • Ubuntu Debian How To Install Recommended Packages Automatically


    A lot of times you may see when installing packages that apt will recommend packages, a lot of times when doing things like upgrading or install a new kernel, it is very smart at recommending related packages (eg. modules, headers, extras etc..)

    All you need to do is add this flag to your "apt install" command:

    --install-suggests

     

    As you can see below, when we add this flag, it then installs all of the "Suggested packages" from above:

    sudo apt install --install-suggests linux-image-5.15.0-119-generic
    Reading package lists... Done
    Building dependency tree       
    Reading state information... Done
    The following packages were automatically installed and are no longer required:
      linux-objects-nvidia-510-4.15.0-188-generic linux-signatures-nvidia-4.15.0-188-generic
    Use 'sudo apt autoremove' to remove them.
    The following additional packages will be installed:
      fdutils linux-doc linux-headers-5.15.0-119-generic linux-hwe-5.15-headers-5.15.0-119 linux-modules-5.15.0-119-generic linux-modules-extra-5.15.0-119-generic
    Suggested packages:
      linux-hwe-5.15-tools
    The following NEW packages will be installed:
      fdutils linux-doc linux-headers-5.15.0-119-generic linux-hwe-5.15-headers-5.15.0-119 linux-image-5.15.0-119-generic linux-modules-5.15.0-119-generic linux-modules-extra-5.15.0-119-generic


  • How to set Linux Ubuntu Redhat Debian Command Line http https socks proxy for yum apt


    Just export these variables:

    export http_proxy="socks5://127.0.0.1:1234"
    export https_proxy="socks5://127.0.0.1:1234"

    The above example uses a socks 5 proxy at localhost and port 1234.

    This is a great way to improve performance of some activities for things like package installation, especially if your routing is not ideal to the repos.


  • How to resize a pdf without losing much quality in Linux Mint Ubuntu Debian Redhat Solution


    Use gs or ghostscript as below, specify the output file and also the input file.

    In the example below the output file is "outputfile-resized.pdf" and the input file is "original-pdf.pdf".  Change the input file to the name of your pdf

    gs -sDEVICE=pdfwrite -dCompatibilityLevel=1.4 -dPDFSETTINGS=/prepress -dNOPAUSE -dQUIET -dBATCH -sOutputFile=outputfile-resized.pdf original-pdf.pdf

    For example the above method took a pdf from 12MB to about 500KB with no noticeable quality loss.


  • qemu: could not load PC BIOS 'bios-256k.bin' solution


    qemu: could not load PC BIOS 'bios-256k.bin'

    The file exists here:

    /usr/share/qemu/bios-256k.bin

    It is symlinked to here:

    /usr/share/seabios/bios.bin
     

    A quick fix is manually specifying the BIOS:

     -bios /usr/share/qemu/bios-256k.bin


  • Proxmox How To Custom Partition During Install


    If you just have 1 disk per node/testing/POC then you can reduce the overall disk usage during install as below:

     

    1.) Click on "Options" on the HDD that you want to install to.

     

    2.) Under "hdsize" Set the Maximum Size smaller than the disk size.

    In this example the disk is 60G and I set max size as 20G.  This then leaves 40G remaining of unpartitioned space that you could later use for other things like Ceph, DRBD etc...

     


  • Hyper-V Linux VM Boots to Black Screen, Storage, NIC Not Found Issues


    Hyper-V uses obscure virtual hardware, you can enable the FB device for Hyper-V but if you just need text/console to work just compile this option:

    Device Drivers --->
      Graphics support --->
        <*> Framebuffer Devices --->
            <*> Simple framebuffer support

     

     


  • Ubuntu Mint How to Fix Missing/Broken /dev and /dev/pts which causes terminal to immediately close exit and not work


    If you have ever seen a system where terminal in the GUI closes instantly and/or you cannot SSH to the server/machine.

    mount -t devtmpfs none /dev
    mount -t devpts none /dev/pts


  • How high can a Xeon CPU get?


    As a fun test in an old/unloved dual CPU Xeon system, I removed the fan for the heatsink and after 1.5 hours, the system was completely stable and had surprisingly not crashed, despite exceeding or hitting the critical thermal levels


  • bash fix PATH environment variable "command not found" solution


    If you are sure the binary/program exists, it could be that your PATH variable is broken or not set.

    Just do this to set most of the common paths:

    export PATH=$PATH:/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/sbin:/bin

    There's no risk to the above, because it just takes your current PATH variable and adds more to what is already existing.

    To make this permanent you can add this to your ~/.bashrc file


  • Ubuntu Linux Mint Debian Redhat Youtube Cannot Play HD or 4K videos, dropped frames or high CPU usage with Nvidia or AMD Driver


    In a lot of distros, vdpau which accelerates video through the GPU is often not installed even in recent distros.  This will result in Firefox with Youtube dropping frames when you check the "Stats for Nerds" and to the eye as jerky or slower video playback due to the dropped frames.

    Some sites will say that because you are watching VP09 that there is no GPU support, but with vdpau installed and enabled, many GPUs will still be able to use hardware decoding for 4K Youtube videos.  Information on this is spotty but you can clearly see the GPU utilization going up when watching Youtube GPUs, so the GPU is doing something to decode the video.

    This will make you think that your GPU is not capable of playing even 1080P sometimes or 4K even though it is, as in many cases it is your CPU doing the video decoding and a lot of times some CPUs cannot reliably or consistently support 4K decoding in Youtube.

    The easiest solution is to install vdpau and restart your browser:

    sudo apt install vdpau-driver-all

    I was surprised that this helped even on even much older cards including older Nvidia GPUs.

    After doing the above and restarting Firefox, the stats for nerds showed 0 dropped frames when watching 4K, compared to some dropped frames at 1080P and many dropped at 4K before enabling vdpau.

    One caveat that it may be that your video card is still too slow and may not be able to support decoding Youtube in fullscreen at certain resolutions.  You may see the above but then on a weaker GPU, may find that it does drop frames when running fullscreen.

    Sometimes frames will only drop when having the Stats for nerds on top, or the progress bar open.

    In general VP09 full support and decoding is not guaranteed to work well or at all, and unfortunately Youtube has not stuck to normal standards that most GPUs support like H265 or H264, XVID, DIVX etc...

     

    Related Links:

    https://support.mozilla.org/en-US/kb/firefox-4k-ultra-high-definition-youtube-videos

    https://www.nvidia.com/en-us/geforce/forums/geforce-graphics-cards/5/285268/no-hardware-decoding-on-youtube-with-vp9-hdr/

    https://www.reddit.com/r/linuxquestions/comments/ugp19e/help_playing_back_4k60fps_youtube_on_linux/


  • hostapd example configuration for high speed AC on 5GHz using WPA2


    This example is using RTL8821AU chipset from a TP-Link T2U Plus USB adapter and other similar ones should work the same.

    Here's how to get this chipset RTL8821AU working in Linux.

    Here's how to get RTL8812 and RTL8822 working in Linux.

    With these settings I can get very good speeds of 300+ mbit per second and for some reason the upload speed is faster than download.

    Change wlan0 if your adapter has a different device name and make sure you set your WPA passphrase or change it.

    interface=wlan0
    # "a" simply means 5GHz
    #driver=cfg80211
    hw_mode=a
    # the channel to use, 0 means the AP will search for the channel with the least interferences (ACS)
    channel=36
    #ieee80211d=1
    country_code=US
    ieee80211n=1
    ht_capab=[HT40+][HT40-][SHORT-GI-20][SHORT-GI-40][MAX-AMSDU-7935]
    #the below doesn't work hostapd wouldn't start
    #ht_capab=[HT40+][HT40-][SHORT-GI-20][SHORT-GI-40][RX-STBC1][MAX-AMSDU-7935]
    # 802.11ac support
    ieee80211ac=1         
    wmm_enabled=1
    #vht_capab=[MAX-MPDU-11454][SHORT-GI-80][HTC-VHT]
    vht_capab=[MAX-MPDU-11454][SHORT-GI-80][RX-STBC-1][HTC-VHT][MAX-A-MPDU-LEN-EXP7]

    #optimize?
    beacon_int=100
    dtim_period=2
    max_num_sta=32
    macaddr_acl=0
    rts_threshold=2347
    fragm_threshold=2346

    #end optimize
    ssid=rttWirelessInternet
    auth_algs=1
    wpa=2
    wpa_key_mgmt=WPA-PSK
    rsn_pairwise=CCMP
    wpa_passphrase=YOURWirelessInSecurePasswordHere

     


  • hostapd how to enable and use WPS to connect wireless devices like printers


    Edit your /etc/hostapd/hostapd.conf file like below and restart hostapd.

    #WPS stuff
    # Enable control interface for PBC/PIN entry


    wpa_psk_file=/etc/hostapd/hostapd.psk
    ctrl_interface=/var/run/hostapd
    eap_server=1
    wps_state=2
    ap_setup_locked=1
    wps_pin_requests=/var/run/hostapd.pin-req
    config_methods=label display push_button keypad

    #WPS model info stuff change to suit your needs
    device_name=Your Device Name
    manufacturer=Company
    model_name=Model
    model_number=ModelNum

    Create the .psk file from above

    touch /etc/hostapd/hostapd.psk

    Restart hostapd

    systemctl restart hostapd
     

    Here's how to push the non-existent button on your router for WPS

    hostapd_cli wps_pbc

    Then you should get this and your device should be able to connect now.

    Once you see the below, the device has 2 minutes to connect.


    Selected interface 'wlan0'
    OK

     

     
     

     

     


  • Dell Server Workstation iDRAC Dead after Firmware Update Solution R720, R320, R730


    This is certainly a poor design, as you can read many seasoned admins who have updated their iDRAC only to have it killed.  One possible cause is not by doing all the incremental updates, doing updates from an old iDRAC to one many revisions newer is a sure way to kill things, but even then there is no guarantee based on the amount of failures.

     

    List of threads of people's dead iDRAC's:

    https://www.reddit.com/r/homelab/comments/a49b4y/r720_idrac_help/?rdt=40792

    https://www.reddit.com/r/homelab/comments/960wx8/dell_r720_idrac_recovery/

    https://www.dell.com/community/en/conversations/rack-servers/idrac-7-not-responding-on-dell-poweredge-r720xd/

    https://www.dell.com/community/en/conversations/poweredge-hardware-general/iidrac-initialization-error-r720/647f86a0f4ccf8a8de5b28ca

    https://www.dell.com/community/en/conversations/poweredge-hardware-general/alert-idrac-not-responding-rebooting/

    https://community.spiceworks.com/t/alert-idrac-not-responding-rebooting/776991

    https://www.dell.com/community/en/conversations/systems-management-general/dead-idrac-after-update/647f932df4ccf8a8de53107b

    The first solution is don't mass update, as we've seen entire datacenters or racks full of Dell machines with dead iDRAC due to mass update attempts.  It is likely not practical to do this fix on a wide scale unless you can migrate the applications to another facility or rack as this requires the servers to be pulled off the rack or at least pulled by the rails and to open the case of course.

    Try This First (only if you have lights on the iDRAC):

    https://www.dell.com/support/kbdoc/en-us/000120131/poweredge-idrac-recovery-procedure-with-firmimg-d7

    This solution is for if your iDRAC is totally dead, no flashing lights, dead NIC etc...

    You will first need a USB to TTL adapter like this Amazon affil link.

    Story of successful recovery.

    Another successful recovery: http://blog.ignoranthack.me/?p=86

    More discussion of the issue.

    You will see Dell themselves advising to replace the motherboard, but in many cases by connecting to the UART below with a USB to TTL cable, you can tell the iDRAC to reflash from the SDCARD image.

     

    Based off this example of a Dell R720, we can see the UART pins which are labelled by this github user.

    This area is at the back right of the server (if looking from the server from the front) and will require you to remove the riser cage to access this area.

    Step 1.) Connect to USB to TTL adapter.

    Be sure to use the correct pins below (remember the TX side of the TTL goes to the RX side of the UART and the the RX side of the TTL goes to the TX side of the UART).  If in doubt, use a multimeter to make sure you aren't connecting to the wrong pins/getting voltage where you shouldn't be.

     

     

     

    Note About Format of SD Card

    I have seen this occur on some servers, I am not sure how it was done like this but the SD Card came formatted as the root drive, without any partition.  It seems that U-Boot recovery DOES NOT like this, or the fact that it is a 16GB Card even though it is from Dell.


    UTIL RECOVER:Transport:sd  TargetMMC:EMMC  File:firmimg.d7
    UTIL RECOVER:ERROR:Could not locate 'firmimg.d7' in FAT or EXT2 file system.

    If you get the errors above and you are sure the file exists, then it is worth doing the following.

    1.) Backup all files from the SD Card.

    2.) Completely wipe the card.

    3.) Format a single partition as 2GB as ext2 (ext2 not ext3 or ext4 or it won't work as the environment does not have the kernel modules to load anything but FAT and EXT2).

     

    Step 2.) Recover

    Sometimes you may need to go through 2 rounds of bootup procedure by hitting all the annoying keys to get the server booted normally for this to work.

    Connect using minicom or screen and run these commands:

    screen /dev/ttyUSB0 115200

    The connection speed is crucial, otherwise you will see nothing or garbage characters.

    If all goes well you should see like below.

    Make sure you have the file firmimg.d7 or whatever the name one is from the iDRAC firmware on the SD card that inserts at the front of the server.

    util recover -emmc -from sd -f firmimg.d7 -noreset -clear

    Some versions will not have this -from_sd option

    iDRAC8=> util recover -emmc -from_sd -f firmimg.d6 -noreset -clear
    util recover:mcgetopt:ERROR: option "-from_sd" was not found.


    Then once the above completes do this:

    util reset

     

    Short iDRAC DBG interrupt/reboot pins

    If you see a shell prompt like below (SH7757), you will need to short the DBG pins in the image from earlier.

    Use a paper clip to short the two pins shown above as the interrupt/reboot pins in the diagram above.

    After shorting you should see U-Boot again:

    U-Boot 2009.08 (Mar 10 2012 - 02:52:09) Avocent (0.0.3) EVB, Build: jenkins-12G_iDRAC_Releases-402

    CPU: SH-4A  
    BOARD: R0P7757LC00xxRL (C0 step) board
    BOOT: Secure, HRK generated
    DRAM:  240MB
      (240MB of 256MB total DRAM is available on U-Boot)
    ENV:   Using primary env area.
    In:    serial
    Out:   serial
    Err:   serial
    PCIe:  Bridge loaded with 0x18000 bytes
    WDT2:  Booted Lower Vector, 'uboot1'
    sh_mmcif: 0, sh-sdhi: 1
    Net:   sh_eth.0, sh_g_eth.0
    INFO: 00:002 Start-up -to- util_idrac_main()
    INFO: 00:004 U-Boot 2009.08 (Mar 10 2012 - 02:52:09) Avocent (0.0.3) EVB
    INFO: 00:007 U-Boot checkin date(03-02-2012) Version(1.0.175)
    INFO: 00:006 iDRAC PPID <NULL>
    INFO: 00:003 SPI NOR init 4096 KiB N25Q032 bus=0 cs=0, speed=1000000, mode=3
    INFO: 00:007 SH-4A Product: Major Ver=0x31  Minor Ver=0x13 C3 Little endian
                 Family=0x10    Major Ver=0x30  Minor Ver=0x0b
    PASS: 00:016 Dedicated monolithic mgmt NIC disabled
    INFO: 00:128 BCM54610 OUI=0x3fffff  Model=0x3f  Revision=0x0f PhyAddr=1
    INFO: 00:362 SD CARD:   Device: sh-sdhi   Manufacturer ID: 41   OEM: 3432
                 Name: DELL1   Tran Speed: 25000000   Rd Block Len: 512
                 SD version 2.0   High Capacity: Yes   Capacity: -843055104
    INFO: 00:059 EMMC:   Device: sh_mmcif   Manufacturer ID: 90   OEM: 14a
                 Name: HYNIX   Tran Speed: 25000000   Rd Block Len: 512
                 MMC version 4.0   High Capacity: Yes   Capacity: 0
    INFO: 00:019 CPLD: Major Ver=0x1  Minor Ver=0x0  Maint Ver=0x3
                 Planar: Type=0x02  Rev=0x8  Rework=0x8  Scratch/PathRetry=0x00
    PASS: 00:013 Coin cell detected good,  AD=0x397 low water=0x2c1
    PASS: 00:008 PCIe C0 Ver=0.13 MCTP en, CRC=0x19592849 @0x8efbf3a8 cnt=0x18000
    INFO: 00:007 Init PCIe mailbox(PCIe 0xFFEE0150=0x40010000)
    INFO: 00:006 mode=normal
    INFO: 00:002 reset_cause=ac
    PASS: 00:005 Booted Lower Vector, 'uboot1' wdt2cnt=0
    INFO: 00:005 wdt0cnt=0
    PASS: 00:003 Clear CH1/CH2, clear 4K shared memory@0xffcaa000 on AC power up
    PASS: 00:007 SMR0 no sermux env, default 0xd4
    INFO: 00:004 GRACR=0x3c HISEL=0x00 SIRQCR5_D=0x03 SIRQCR6_D=0x01 LADMSK0=0xff2
                 MRSTCR0=0xfedffe7f MRSTCR1=0xfff3ff0f MRSTCR2=0x7f80feff
                 BARMAP=0x1 BCR=0x85000000 NCER=0x01fc NCMCR=0x0006 NCCSR=0x0303
    PASS: 00:021 etherc0=78:45:C4:F6:88:68
                 getherc0=78:45:C4:F6:88:69
    INFO: 00:010 Fan logic for monolithic planar type 2
                 fan1 - def 0000 1fff 3d   fan2 - def 0000 1fff 3d
                 fan3 - def 0000 1fff 3d   fan4 - def 0000 1fff 3d
                 fan5 - def 0000 1fff 3d   fan6 - def 0000 1fff 3d
                 fan7 - def 0000 1fff 3d   fan8 - def 0000 1fff 3d
    INFO: 00:076 Env and backup CRC'ed ok
    *** no text signature found ***

    INFO: 00:536 Sync eMMC/SPI NOR/Alternate u-boot images
    PASS: 00:258 Current u-boot1 1.0.175 verified with 'ubootN'
                 Trailer Struct - Missing start token, exp=0xc0de1111 rec=0x0
                 U-boot2 in sync with u-boot1 1.0.175
    PASS: 03:607 Verify OS Images N: CRC32 OK: Kernel=0x4d21804a Rootfs=0x40007db7
    PASS: 00:008 Boot device=emmc  Boot partition1/N
                 Boot Path Retry:P1/N=0 P5/N-1=0
    INFO: 00:000 05:198


    WDT2: Disabled
    Initialization complete, proceed with boot
    *** no text signature found ***

    No.  Device
    ---------------------
     1   EVB SD/MMC
     4   FLASH  

    Current Device ==> 1

    OS_WDT0_EN:180 seconds,  Re-load ILRAM:
    Boot Path Retry:P1/N=0 P5/N-1=0
    Copying kernel image ... OK
    ## Booting kernel from Legacy Image at 82000000 ...
       Image Name:   sh-linux
       Image Type:   SuperH Linux Kernel Image (gzip compressed)
       Data Size:    2535377 Bytes =  2.4 MB
       Load Address: 80001000
       Entry Point:  80002000
       Verifying Checksum ... OK
       Uncompressing Kernel Image ... OK
    WDT2: Disable in do_bootm_linux()
    sh_eth_init

    Monolithic/DRB
    init started: BusyBox v1.18.4 (2012-03-10 03:35:27 UTC)
    starting pid 415, tty '': '/etc/init.d/rcS'
    waitfor: pid 415 ...
    setting net.ipv6.conf.default.accept_dad based on kernel bootup option
    enable normal accept DAD for ipv6
    Sat Jan 1 00:00:01 UTC 2000 To execute command __source /etc/sysapps_script/I_1000_mountfs.sh__
    Sat Jan 1 00:00:03 UTC 2000 To execute command __source /etc/sysapps_script/I_1001_trigwdt.sh__
    <========= Start H/W watchdog first... =========>
    Sat Jan 1 00:00:03 UTC 2000 To execute command __source /etc/sysapps_script/I_1100_nfs.sh__
    Sat Jan 1 00:00:03 UTC 2000 To execute command __source /etc/sysapps_script/I_1105_ps.sh__
    XXXXXX /dev/mmcblk0p11
    /dev/mmcblk0p11: recovering journal
    fsck.ext3: Attempt to read block from filesystem resulted in short read while trying to re-open /dev/mmcblk0p11
    e2fsck: io manager magic bad!
    e2fsck 1.41.14 (22-Dec-2010)
    fsck.ext3: Attempt to read block from filesystem resulted in short read while trying to open /dev/mmcblk0p11
    Could this be a zero-length partition?
    mount: mounting /dev/mmcblk0p11 on /flash/data0 failed: Invalid argument
    mounting private storage fail, formatting partition
    /etc/init.d/rcS: /etc/sysapps_script/I_1105_ps.sh: line 29: mkfs.ext3: Input/output error
    /etc/init.d/rcS: /etc/sysapps_script/I_1105_ps.sh: line 29: tune2fs: Input/output error
    mount: mounting /dev/mmcblk0p11 on /flash/data0 failed: Invalid argument
    Sat Jan 1 00:00:04 UTC 2000 To execute command __source /etc/sysapps_script/I_1106_clear_ps.sh__
    Sat Jan 1 00:00:04 UTC 2000 To execute command __source /etc/sysapps_script/I_1150_SYS_Drv.sh__
    insmod: can't insert '/lib/modules/aess_eventhandlerdrv.ko': Input/output error
    insmod: can't insert '/lib/modules/aess_kcsdrv.ko': Input/output error
    insmod: can't insert '/lib/modules/aess_biospostdrv.ko': Input/output error
    insmod: can't insert '/lib/modules/aess_gpiodrv.ko': Input/output error
    insmod: can't insert '/lib/modules/aess_sgpiodrv.ko': Input/output error
    insmod: can't insert '/lib/modules/aess_dynairqdrv.ko': Input/output error
    insmod: can't insert '/lib/modules/aess_i2c_hwctrldrv.ko': Input/output error
    insmod: can't insert '/lib/modules/aess_i2cdrv.ko': Input/output error
    insmod: can't insert '/lib/modules/aess_spi1drv.ko': Input/output error
    insmod: can't insert '/lib/modules/aess_pecisensordrv.ko': Input/output error
    insmod: can't insert '/lib/modules/cryptodev.ko': Input/output error
    insmod: read error from '/lib/modules/sh_tsip.ko': Input/output error
    insmod: can't insert '/lib/modules/sh_tsip.ko': Input/output error
    insmod: can't insert '/lib/modules/aess_fansensordrv.ko': Input/output error
    insmod: can't insert '/lib/modules/aess_pwmdrv.ko': Input/output error
    insmod: can't insert '/lib/modules/aess_timerdrv.ko': Input/output error
    insmod: can't insert '/lib/modules/dell_cplddrv.ko': Input/output error
    insmod: can't insert '/lib/modules/aess_rspidrv.ko': Input/output error
    insmod: can't insert '/lib/modules/dell_fpdrv.ko': Input/output error
    insmod: can't insert '/lib/modules/aess_adcsensordrv.ko': Input/output error
    insmod: can't insert '/lib/modules/VKCSDriver.ko': Input/output error
    insmod: can't insert '/lib/modules/aess_memdrv.ko': Input/output error
    insmod: read error from '/lib/modules/sh_pbi.ko': Input/output error
    insmod: can't insert '/lib/modules/sh_pbi.ko': Input/output error
    Sat Jan 1 00:00:04 UTC 2000 To execute command __source /etc/sysapps_script/I_1170_mknode.sh__
    Sat Jan 1 00:00:05 UTC 2000 To execute command __/etc/sysapps_script/config_lib_init.sh__
    mounting Platform Data 1 partition
    mount: mounting /dev/mmcblk0p9 on /tmp/pd0/ failed: Input/output error
    /etc/sysapps_script/config_lib_init.sh: line 28: /etc/default/ipmi/getsysid: not found
    mkdir: can't create directory '/flash/data0/config/': Read-only file system
    /etc/sysapps_script/config_lib_init.sh: cd: line 38: can't cd to /flash/data0/config/
    ln: ./lmcfg.txt: Read-only file system
    ln: ./platcfggrp.txt: Read-only file system
    ln: ./platcfgfld.txt: Read-only file system
    ln: ./cfgfld.txt: Read-only file system
    ln: ./cfggrp.txt: Read-only file system
    ln: ./gencfggrp.txt: Read-only file system
    ln: ./gencfgfld.txt: Read-only file system
    ln: ./altdefaults.txt: Read-only file system
    cp: can't stat '/tmp/pd0/network_config/Orca/iDRACnet.default': No such file or directory
    cp: can't stat '/tmp/pd0/network_config/Orca/NICSelection.sh': No such file or directory

    Sat Jan 1 00:00:06 UTC 2000 To execute command __source /etc/sysapps_script/I_1160_OSINET.sh__
    Sat Jan 1 00:00:06 UTC 2000 To execute command __source /etc/sysapps_script/I_1200_etc_defaults.sh__
    cp: can't create '/flash/data0/etc/hosts': Read-only file system
    mkdir: can't create directory '/flash/data0/sysconfig': Read-only file system
    mkdir: can't create directory '/flash/data0/ipsec': Read-only file system
    /etc/sysapps_script/network_dev_init.sh: line 34: /tmp/pd0/ipmi/getsysid: not found
    cp: can't create '/flash/data0/etc/hosts': Read-only file system
    Sat Jan 1 00:00:06 UTC 2000 To execute command __source /etc/sysapps_script/I_1210_sysklog_syslogd.sh__
    mkdir: can't create directory '/var/log/raclogd/': No such file or directory
    touch: /var/log/raclogd/raclog: No such file or directory
    chmod: /var/log/raclogd/raclog: No such file or directory
    /etc/init.d/rcS: /etc/sysapps_script/I_1210_sysklog_syslogd.sh: line 16: /etc/sysapps_script/syslog.sh: Input/output error
    Sat Jan 1 00:00:07 UTC 2000 To execute command __source /etc/sysapps_script/I_trab_asdf.sh__
    insmod: read error from '/lib/modules/trab.ko': Input/output error
    insmod: can't insert '/lib/modules/trab.ko': Input/output error
    Sat Jan 1 00:00:07 UTC 2000 To execute command __source /etc/sysapps_script/I_usb_drv.sh__
    NOTICE: Not full features configuration - kbdmouse not operational
    insmod: can't insert '/lib/modules/g_r8a66597_udc.ko': Input/output error
    failed load of g_r8a66597_udc
    Sat Jan 1 00:00:07 UTC 2000 To execute command __source /etc/sysapps_script/I_video_drv.sh__
    insmod: can't insert '/lib/modules/aess_video.ko': Input/output error
    waitfor: pid 415, wpid 415

    Please press Enter to activate this console. ^[[5~^[[5~
    starting pid 550, tty '': '-/bin/sh'


    Other useful recon output of how things work

     

    iDRAC8=> util recover


    UTIL RECOVER:Transport:tftp  TargetMMC:EMMC  File:firmimg.d7
    UTIL RECOVER:Loading file "firmimg.d7" from TFTP server IP "192.168.0.100"
    reset PHY of sh_g_eth.0
    sh_eth: phy reset timeout
    sh_eth: phy config timeout
    UTIL RECOVER:ERROR:TFTP load.
    UTIL FAIL


    iDRAC8 commands


    iDRAC8=> util help
    Available "util" subcommands:

    evc  [-en ] [-dis ]
    evc  [-rise] [-fall] [-monitor]

    fan  [-set ]
    fan  [-init]

    flash  [-sd | -spi | -emmc]
           [-b |

     


    iDRAC8=>
    iDRAC8=> util recover -emmc -from sd -f firmimg.d6 -noreset -clear
    util recover:mcgetopt:ERROR: option "-clear" was not found.

    UTIL FAIL
    iDRAC8=>
    iDRAC8=> util recover -emmc -from sd -f firmimg.d6 -noreset       


    UTIL RECOVER:Transport:sd  TargetMMC:EMMC  File:firmimg.d6
    UTIL RECOVER:ERROR:Could not locate 'firmimg.d6' in FAT or EXT2 file system.

    UTIL FAIL
    iDRAC8=> util recover -emmc -from sd -f firmimg.d7 -noreset


    UTIL RECOVER:Transport:sd  TargetMMC:EMMC  File:firmimg.d7
    UTIL RECOVER:ERROR:Could not locate 'firmimg.d7' in FAT or EXT2 file system.

     


     

    U-Boot 2009.08 (Jun 11 2018 - 05:56:29) Avocent (0.0.3) EVB

    CPU: SH-4A
    BOARD: R0P7757LC00xxRL (Cn step) board
    BOOT: Secure, HRK generated
    DRAM:  240MB
      (240MB of 256MB total DRAM is available on U-Boot)
    ENV:   Using primary env area.
    In:    serial
    Out:   serial
    Err:   serial
    WDT2:  Booted Lower Vector, 'uboot1'
    sh_mmcif: 0, sh-sdhi: 1
    Net:   sh_eth.0, sh_g_eth.0
    INFO: 00:002 Start-up -to- util_idrac_main()
    INFO: 00:005 U-Boot 2009.08 (Jun 11 2018 - 05:56:29) Avocent (0.0.3) EVB
    INFO: 00:006 U-Boot checkin date(08-11-2016) Version(1.1.32)
    INFO: 00:006 iDRAC PPID

    INFO: 00:003 SPI NOR init 4096 KiB N25Q032 bus=0 cs=0, speed=1000000, mode=3
    INFO: 00:007 SH-4A Product: Major Ver=0x31  Minor Ver=0x13 C3 Little endian
                 Family=0x10    Major Ver=0x30  Minor Ver=0x0b
    INFO: 00:140 BCM54610 OUI=0x00d897  Model=0x26  Revision=0x0a PhyAddr=1
    INFO: 00:006 Dedicated monolithic mgmt NIC disabled
    INFO: 00:340 SD CARD:   Device: sh-sdhi   Manufacturer ID: 41   OEM: 3432
                 Name: DELL1   Tran Speed: 25000000   Rd Blk Len: 512
                 SD ver 2.0   HC: Yes   cap(<2gb): 3451912192  cap(>2gb): 0
                 ext_rev: 0    rst_n: 0  ext[96]: 0
    INFO: 00:063 EMMC:   Device: sh_mmcif   Manufacturer ID: 90   OEM: 14a
                 Name: HYNIX   Tran Speed: 25000000   Rd Blk Len: 512
                 MMC ver 4.0   HC: Yes   cap(<2gb): 0  cap(>2gb): 7569408
                 ext_rev: 5    rst_n: 0  ext[96]: 0
    INFO: 00:023 CPLD: Major Ver=0x1  Minor Ver=0x0  Maint Ver=0x3
                 Planar: Type=0x02  Rev=0x8  Rework=0x8  Scratch/PathRetry=0x0f
    PASS: 00:014 Coin cell detected good,  AD=0x397 low water=0x2c1
    PASS: 00:008 PCIe SH7757_C0 Ver=0.15 MCTP en, CRC=0x8e9b6875 @0x8efbd914 cnt=0x18000
    INFO: 00:008 Init PCIe mailbox(PCIe 0xFFEE0150=0x40010000)
    INFO: 00:006 mode=normal
    INFO: 00:002 reset_cause=recover
    PASS: 00:005 Booted Lower Vector, 'uboot1' wdt2cnt=0
    INFO: 00:006 wdt0cnt=0  cpld_recover_cnt=0  ddr_recover_cnt=0  
    PASS: 00:006 SMR0 no sermux env, default 0xd4
    INFO: 00:004 GRACR=0x3c HISEL=0x00 SIRQCR5_D=0x03 SIRQCR6_D=0x01 LADMSK0=0xff2
                 MRSTCR0=0xfedffe7f MRSTCR1=0xfff3ff0f MRSTCR2=0x6f80feff
                 BARMAP=0x1 BCR=0x85000000 NCER=0x01fc NCMCR=0x0006 NCCSR=0x0303
    PASS: 00:021 etherc0=
                 getherc0=
    INFO: 00:008 Fan logic is not modified on Non-AC power up
    INFO: 00:052 Env and backup CRC'ed ok
    *** no text signature found ***
    INFO: 00:696 Sync eMMC/SPI NOR/Alternate u-boot images
    PASS: 00:077 Current u-boot1 1.1.32 verified with 'ubootN1'
                 Trailer Struct - Missing start token, exp=0xc0de1111 rec=0x0

    FAIL: 06:813 Verify OS Images N-1: Rootfs crc exp=0xe8caa151 rec=0xcfb9c0a7
                 blk_start=0x48003 blk_size=0x301f0 ENV bcnt=0x603e000
    FAIL: 00:013 Boot device=emmc  Boot partition5/N-1
                 Boot Path Retry:P1/N=3 P5/N-1=3  Recover
    INFO: 00:000 15:265
    Hit any key to stop autoboot:  0
    WDT2: Disable in abortboot()
    OSWDT: Disable in abortboot()
    CPLD_BMCRDY: Enable BMC_MIN_RDY in abortboot().  Prevent BIOS reset.

    NOTE: After stopping u-boot in this development mode.  You may need to
          warm/cold reset the server when booting iDRAC manually as BIOS
          may have already viewed iDRAC as unresponsive.



    RECOVER:Max retries occured for both N/N-1 paths, OR forced recover.


     


    Full Recovery Output

    Sometimes it does not go well especially if you didn't know your EMMC is bad where it stores the firmware.

    Not having the -noreset and -clear seems to have created this situation, with the waitpid but at that point the iDRAC lights and NIC were flashing.  I then hard powered down and had to use the DBG pins to get back into U-Boot.

    iDRAC8=> util recover -emmc -from sd


    UTIL RECOVER:Transport:sd  TargetMMC:EMMC  File:firmimg.d7
    Loading file "firmimg.d7" from mmc device 1:1 (xxb1)
    54542562 bytes read
    UTIL RECOVER:SD load passed from EXT2 fs.
    UTIL RECOVER:Transport time [sec:mil]: 46:594

    Clear OS images in partition/s.
    Clear kernelN, rootfsN, ubootN
    'EMMC' blk size=[0x200][512]  Erase to 0xffffffff
    Mem buf size=[0x06000000][100663296]  Total bytes=[0x08000000][134217728]
    blocks[0x1:0x40001][1:262145]
    Blocks [0x30001:0x40000] Buf[0x88000000]..fill buffer..erase/write
    Completed loop 1,  Elapsed time in hr:min:sec:mil 14:122


    Clear rootfsN1
    'EMMC' blk size=[0x200][512]  Erase to 0xffffffff
    Mem buf size=[0x06000000][100663296]  Total bytes=[0x06F80000][116916224]
    blocks[0x48003:0x7fc03][294915:523267]
    Blocks [0x78003:0x7fc02] Buf[0x88000000]..fill buffer..erase/write
    Completed loop 1,  Elapsed time in hr:min:sec:mil 09:950
     
     
    Clear ubootN1
    'EMMC' blk size=[0x200][512]  Erase to 0xffffffff
    Mem buf size=[0x06000000][100663296]  Total bytes=[0x00080000][524288]
    blocks[0x7fc04:0x80004][523268:524292]
    Blocks [0x7fc04:0x80003] Buf[0x88000000]..fill buffer..erase/write
    Completed loop 1,  Elapsed time in hr:min:sec:mil 00:133
     

    *** no text signature found ***

    *** Updating Partition 1 ***
    Checking image header CRC ... OK
    Checking platform env ID..... OK
    Checking kernel image CRC ... OK
    Checking rootfs image CRC ... OK
    Checking u-boot image CRC ... OK
    Skipping u-boot update ...... NO
    Checking Platform image CRC . OK
    Checking processor support .. OK
    Copying kernel image ........ OK
    Copying rootfs .............. OK
    Copying u-boot1 to flash..... OK
    Copying u-boot2 to flash..... OK
    Copying u-boot to MMC........ OK
    Copying platform image ...... OK

    *** Updating Partition 5 ***
    Checking image header CRC ... OK
    Checking platform env ID..... OK
    Checking kernel image CRC ... OK
    Checking rootfs image CRC ... OK
    Checking u-boot image CRC ... OK
    Skipping u-boot update ...... NO
    Checking Platform image CRC . OK
    Checking processor support .. OK
    Copying kernel image ........ OK
    Copying rootfs .............. OK
    Copying u-boot1 to flash..... OK
    Copying u-boot2 to flash..... OK
    Copying u-boot to MMC........ OK
    Copying platform image ...... OK
    Erasing SPI flash at 0x100000...Writing to SPI flash...done
    Erasing SPI flash at 0x110000...Writing to SPI flash...done
    UTIL RECOVER:Program time [sec:mil]:01:14:394
    UTIL RECOVER:Total update time [sec:mil]:02:00:992
    Re-load 0x1000Kbytes from u-boot offset 0x0 into ILRAM at 0x0
    Force Address Error to reset iDRAC
     
     
    U-Boot 2009.08 (Mar 10 2012 - 02:52:09) Avocent (0.0.3) EVB, Build: jenkins-12G_iDRAC_Releases-402


    CPU: SH-4A
    BOARD: R0P7757LC00xxRL (C0 step) board
    BOOT: Secure, HRK generated
    DRAM:  240MB
      (240MB of 256MB total DRAM is available on U-Boot)
    ENV:   Using primary env area.
    In:    serial
    Out:   serial
    Err:   serial
    WDT2:  Booted Lower Vector, 'uboot1'
    sh_mmcif: 0, sh-sdhi: 1
    Net:   sh_eth.0, sh_g_eth.0
    INFO: 00:002 Start-up -to- util_idrac_main()
    INFO: 00:005 U-Boot 2009.08 (Mar 10 2012 - 02:52:09) Avocent (0.0.3) EVB
    INFO: 00:006 U-Boot checkin date(03-02-2012) Version(1.0.175)
    INFO: 00:006 iDRAC PPID

    INFO: 00:003 SPI NOR init 4096 KiB N25Q032 bus=0 cs=0, speed=1000000, mode=3
    INFO: 00:007 SH-4A Product: Major Ver=0x31  Minor Ver=0x13 C3 Little endian
                 Family=0x10    Major Ver=0x30  Minor Ver=0x0b
    PASS: 00:016 Dedicated monolithic mgmt NIC disabled
    INFO: 00:128 BCM54610 OUI=0x3fffff  Model=0x3f  Revision=0x0f PhyAddr=1
    INFO: 00:365 SD CARD:   Device: sh-sdhi   Manufacturer ID: 41   OEM: 3432
                 Name: DELL1   Tran Speed: 25000000   Rd Block Len: 512
                 SD version 2.0   High Capacity: Yes   Capacity: -843055104
    INFO: 00:058 EMMC:   Device: sh_mmcif   Manufacturer ID: 90   OEM: 14a
                 Name: HYNIX   Tran Speed: 25000000   Rd Block Len: 512
                 MMC version 4.0   High Capacity: Yes   Capacity: 0
    INFO: 00:019 CPLD: Major Ver=0x1  Minor Ver=0x0  Maint Ver=0x3
                 Planar: Type=0x02  Rev=0x8  Rework=0x0  Scratch/PathRetry=0x00
    PASS: 00:014 Coin cell detected good,  AD=0x397 low water=0x2c1
    PASS: 00:007 PCIe C0 Ver=0.13 MCTP en, CRC=0x19592849 @0x8efbf3a8 cnt=0x18000
    INFO: 00:008 Init PCIe mailbox(PCIe 0xFFEE0150=0x40010000)
    INFO: 00:005 mode=normal
    INFO: 00:002 reset_cause=board
    PASS: 00:005 Booted Lower Vector, 'uboot1' wdt2cnt=0
    INFO: 00:005 wdt0cnt=0
    PASS: 00:003 SMR0 no sermux env, default 0xd4
    INFO: 00:004 GRACR=0x3c HISEL=0x00 SIRQCR5_D=0x03 SIRQCR6_D=0x01 LADMSK0=0xff2
                 MRSTCR0=0xfedffe7f MRSTCR1=0xfff3ff0f MRSTCR2=0x7f80feff
                 BARMAP=0x1 BCR=0x85000000 NCER=0x01fc NCMCR=0x0006 NCCSR=0x0303
    PASS: 00:021 etherc0=78:45:C4:F6:88:68
                 getherc0=78:45:C4:F6:88:69
    INFO: 00:007 Fan logic is not modified on Non-AC power up
    INFO: 00:053 Env and backup CRC'ed ok
    Erasing SPI flash at 0x100000...Writing to SPI flash...done
    Erasing SPI flash at 0x110000...Writing to SPI flash...done
    *** no text signature found ***
    INFO: 02:537 Sync eMMC/SPI NOR/Alternate u-boot images
    PASS: 00:076 Current u-boot1 1.0.175 verified with 'ubootN'
                 Trailer Struct - Missing start token, exp=0xc0de1111 rec=0x0
    PASS: 03:612 Verify OS Images N: CRC32 OK: Kernel=0x4d21804a Rootfs=0x40007db7
    PASS: 00:008 Boot device=emmc  Boot partition1/N
                 Boot Path Retry:P1/N=0 P5/N-1=0
    INFO: 00:000 06:990

    WDT2: Disabled
    Initialization complete, proceed with boot
    *** no text signature found ***
     
    No.  Device
    ---------------------
     1   EVB SD/MMC
     4   FLASH
     
    Current Device ==> 1
     
    OS_WDT0_EN:180 seconds,  Re-load ILRAM:
    Boot Path Retry:P1/N=0 P5/N-1=0
    Copying kernel image ... OK
    ## Booting kernel from Legacy Image at 82000000 ...
       Image Name:   sh-linux
       Image Type:   SuperH Linux Kernel Image (gzip compressed)
       Data Size:    2535377 Bytes =  2.4 MB
       Load Address: 80001000
       Entry Point:  80002000
       Verifying Checksum ... OK
       Uncompressing Kernel Image ... OK
    WDT2: Disable in do_bootm_linux()
    sh_eth_init
     
    Monolithic/DRB
    init started: BusyBox v1.18.4 (2012-03-10 03:35:27 UTC)
    starting pid 415, tty '': '/etc/init.d/rcS'
    waitfor: pid 415 ...
    setting net.ipv6.conf.default.accept_dad based on kernel bootup option
    enable normal accept DAD for ipv6
    Sat Jan 1 00:00:01 UTC 2000 To execute command __source /etc/sysapps_script/I_1000_mountfs.sh__
    Sat Jan 1 00:00:03 UTC 2000 To execute command __source /etc/sysapps_script/I_1001_trigwdt.sh__
    <========= Start H/W watchdog first... =========>
    Sat Jan 1 00:00:03 UTC 2000 To execute command __source /etc/sysapps_script/I_1100_nfs.sh__
    Sat Jan 1 00:00:03 UTC 2000 To execute command __source /etc/sysapps_script/I_1105_ps.sh__
    XXXXXX /dev/mmcblk0p11
    /dev/mmcblk0p11: recovering journal
    /dev/mmcblk0p11: Clearing orphaned inode 304 (uid=0, gid=0, mode=0100644, size=156)
    /dev/mmcblk0p11: clean, 660/2048 files, 2831/4096 blocks (check in 5 mounts)
    e2fsck 1.41.14 (22-Dec-2010)
    /dev/mmcblk0p11: clean, 660/2048 files, 2831/4096 blocks (check in 5 mounts)
    Sat Jan 1 00:00:04 UTC 2000 To execute command __source /etc/sysapps_script/I_1106_clear_ps.sh__
    Sat Jan 1 00:00:04 UTC 2000 To execute command __source /etc/sysapps_script/I_1150_SYS_Drv.sh__
    Sat Jan 1 00:00:07 UTC 2000 To execute command __source /etc/sysapps_script/I_1170_mknode.sh__
    Sat Jan 1 00:00:08 UTC 2000 To execute command __/etc/sysapps_script/config_lib_init.sh__
    mounting Platform Data 1 partition
    Sat Jan 1 00:00:10 UTC 2000 To execute command __source /etc/sysapps_script/I_1160_OSINET.sh__
    Sat Jan 1 00:00:10 UTC 2000 To execute command __source /etc/sysapps_script/I_1200_etc_defaults.sh__
    Sat Jan 1 00:00:10 UTC 2000 To execute command __source /etc/sysapps_script/I_1210_sysklog_syslogd.sh__
    starting syslogd
    /etc/sysapps_script/syslog.sh: /sbin/aim not running
    waitfor: pid 415, wpid 705
      syslogd: /mmc1/idraclogs: Read-only file system

    Jan  1 00:00:11 (none) syslogd 1.4.2: restart.
    Jan  1 00:00:12 (none) kernel: klogd 1.4.2, log source = /proc/kmsg started.
    Jan  1 00:00:12 (none) kernel: Cannot find map file.
    Jan  1 00:00:12 (none) kernel: No module symbols loaded - kernel modules not enabled.
    Jan  1 00:00:12 (none) kernel: cannot find any symbols, turning off symbol lookups
    Jan  1 00:00:12 (none) kernel: Linux version 2.6.30 (jenkins@vmbrd-dh-r5-253.us.dell.com) (gcc version 4.3.4 (GCC) ) #1 Sat Mar 10 02:59:38 UTC 2012
    Jan  1 00:00:12 (none) kernel: Boot params:
    Jan  1 00:00:12 (none) kernel: ... MOUNT_ROOT_RDONLY - 00000000
    Jan  1 00:00:12 (none) kernel: ... RAMDISK_FLAGS     - 00000000
    Jan  1 00:00:12 (none) kernel: ... ORIG_ROOT_DEV     - 00000000
    Jan  1 00:00:12 (none) kernel: ... LOADER_TYPE       - 00000000
    Jan  1 00:00:12 (none) kernel: ... INITRD_START      - 00000000
    Jan  1 00:00:12 (none) kernel: ... INITRD_SIZE       - 00000000
    Jan  1 00:00:12 (none) kernel: NMI Buffer at 0x83000000
    Jan  1 00:00:12 (none) kernel: Booting machvec: SH7757LCR
    Sat Jan 1 00:00:12 UTC 2000 To execute command __source /etc/sysapps_script/I_trab_asdf.sh__
    Sat Jan 1 00:00:12 UTC 2000 To execute command __source /etc/sysapps_script/I_usb_drv.sh__
    Jan  1 00:00:12 (none) kernel: Renesas R0P7757LC0012RL support.
    Jan  1 00:00:12 (none) kernel: Node 0: start_pfn = 0x40000, low = 0x4ea00
    Jan  1 00:00:12 (none) kernel: Zone PFN ranges:
    Jan  1 00:00:12 (none) kernel:   Normal   0x00040000 -> 0x0004ea00
    Jan  1 00:00:12 (none) kernel: Movable zone start PFN for each node
    Jan  1 00:00:12 (none) kernel: early_node_map[1] activIRQ 50/r8a66597_udc: IRQF_DISABLED is not guaranteed on shared IRQs
    e PFN ranges
    JIRQ 57/r8a66597_udc: IRQF_DISABLED is not guaranteed on shared IRQs
    an  1 00:00:12 (none) kernel:     0: 0x00040000 -> 0x0004ea00
    Jan  1 00:00:12 (none) kernel: On node 0 totalpages: 59904
    Jan  1 00:00:12 (none) kernel: free_area_init_node: node 0, pgdat 8048f3ac, node_mem_map 804f3000
    Jan  1 00:00:12 (none) kernel:   Normal zone: 468 pages used for memmap
    Jan  1 00:00:12 (none) kernel:   Normal zone: 0 pages reserved
    Jan  1 00:00:12 (none) kernel:   Normal zone: 59436 pages, LIFO batch:15
    Jan  1 00:00:12 (none) kernel: Built 1 zonelists in Zone order, mobility grouping on.  Total pages: 59436
    Jan  1 00:00:12 (none) kernel: Kernel command line: root=/dev/mmcblk0p2 rootwait rw rootfstype=squashfs mem=239616k console=ttyS2,115200
    mac1=78:45:C4:F6:88:68 mac2=78:45:C4:F6:88:69  mode=normal reset_cause=board nmi_buf=0x83000000 quiet
    Jan  1 00:00:12 (none) kernel: TRAB buffer at 8eb00000 allocated
    Jan  1 00:00:12 (none) kernel: NR_IRQS:384
    Jan  1 00:00:12 (none) kernel: PID hash table entries: 1024 (order: 10, 4096 bytes)
    Jan  1 00:00:12 (none) kernel: Using tmu for system timer
    Jan  1 00:00:12 (none) kernel: Dentry cache hash table entries: 32768 (order: 5, 131072 bytes)
    Jan  1 00:00:12 (none) kernel: Inode-cache hash table entries: 16384 (order: 4, 65536 bytes)
    Jan  1 00:00:12 (none) kernel: PVR=10300b00 CVR=73440410 PRR=00003113
    Jan  1 00:00:12 (none) kernel: I-cache : n_ways=4 n_sets=256 way_incr=8192
    Jan  1 00:00:12 (none) kernel: I-cache : entry_mask=0x00001fe0 alias_mask=0x00001000 n_aliases=2
    Jan  1 00:00:12 (none) kernel: D-cache : n_ways=4 n_sets=256 way_incr=8192
    Jan  1 00:00:12 (none) kernel: D-cache : entry_mask=0x00001fe0 alias_mask=0x00001000 n_ahid_init: Desc: Keyboard/Mouse Function
    liases=2
    Jan  hid_init: Name: g_kbdmouse
    1 00:00:12 (nonehid_init: Version: 20110426
    ) kernel: Memoryhid_bind: Using Major Number 233
    : 232192k/239616hid_bind: using r8a66597_udc, Keyboard ep1 Mouse ep2
    k available (347hid_bind: Mouse REL ep3
    0k kernel code, 1200k data, 156k init)
    Jan  1 00:00:12 (none) kernel: Calibrating delay loop... 230.19 BogoMIPS (lpj=1150976)
    Jan  1 00:00:12 (none) kernel: Security Framework initialized
    Jan  1 00:00:12 (none) kernel: Mount-cache hash table entries: 512
    Jan  1 00:00:12 (none) kernel: CPU: SH7757
    Jan  1 00:00:12 (none) kernel: net_namespace: 980 bytes
    Jan  1 00:00:12 (none) kernel: PCI: Using configuration type 1
    Jan  1 00:00:12 (none) kernel: NET: Registered protocol family 16
    Jan  1 00:00:12 (none) kernel: sh pinmux: sh7757_pfc handling gpio 0 -> 504
    Jan  1 00:00:12 (none) kernel: bio: create slab
    at 0
    Jan  1 00:00:12 (none) kernel: usbcore: registered new interface driver usbfs
    Jan  1 00:00:12 (none) kernel: usbcore: registered new interface driver hub
    Jan  1 00:00:12 (none) kernel: usbcore: registered new device driver usb
    Jan  1 00:00:12 (none) kernel: DMA: Registering DMA API.
    Jan  1 00:00:12 (none) kernel: DMA: Registering sh_dmac handler (24 channels).
    Jan  1 00:00:12 (none) kernel: Autoconfig PCI channel 0x80488900
    Jan  1 00:00:12 (none) kernel: Scanning bus 00, I/O 0xfed00000:0xff100000, Mem 0x04000000:0x08000000
    Jan  1 00:00:12 (none) kernel: NET: Registered protocol family 2
    Jan  1 00:00:12 (none) kernel: IP route cache hash table entries: 2048 (order: 1, 8192 bytes)
    Jan  1 00:00:12 (none) kernel: TCP established hash table entries: 8192 (order: 4, 65536 bytes)
    Jan  1 00:00:12 (none) kernel: TCP bind hash table entries: 8192 (order: 3, 32768 bytes)
    Jan  1 00:00:12 (none) kernel: TCP: Hash tables configured (established 8192 bind 8192)
    Jan  1 00:00:12 (none) kernel: TCP reno registered
    Jan  1 00:00:12 (none) kernel: NET: Registered protocol family 1
    Jan  1 00:00:12 (none) kernel: Switched to high resolution mode on CPU 0
    Jan  1 00:00:12 (none) kernel: enable PCIe shared memory area
    Jan  1 00:00:12 (none) kernel: audit: initializing netlink socket (disabled)
    Jan  1 00:00:12 (none) kernel: type=2000 audit(946684800.310:1): initialized
    Jan  1 00:00:12 (none) kernel: squashfs: version 4.0 (2009/01/31) Phillip Lougher
    Jan  1 00:00:12 (none) kernel: JFFS2 version 2.2. (NAND) (SUMMARY)  © 2001-2006 Red Hat, Inc.
    Jan  1 00:00:12 (none) kernel: fuse init (API version 7.11)
    Jan  1 00:00:12 (none) kernel: msgmni has been set to 453
    Jan  1 00:00:12 (none) kernel: alg: No test for cipher_null (cipher_null-generic)
    Jan  1 00:00:12 (none) kernel: alg: No test for ecb(cipher_null) (ecb-cipher_null)
    Jan  1 00:00:12 (none) kernel: alg: No test for digest_null (digest_null-generic)
    Jan  1 00:00:12 (none) kernel: alg: No test for compress_null (compress_null-generic)
    Jan  1 00:00:12 (none) kernel: alg: No test for stdrng (krng)
    Jan  1 00:00:12 (none) kernel: io scheduler noop registered
    Jan  1 00:00:12 (none) kernel: io scheduler anticipatory registered
    Jan  1 00:00:12 (none) kernel: io scheduler deadline registered (default)
    Jan  1 00:00:12 (none) kernel: io scheduler cfq registered
    Jan  1 00:00:12 (none) kernel: Serial: 8250/16550 driver, 2 ports, IRQ sharing disabled
    Jan  1 00:00:12 (none) kernel: SuperH SCI(F) driver initialized
    Jan  1 00:00:12 (none) kernel: sh-sci: ttyS0 at MMIO 0xfe4b0000 (irq = 40) is a scif
    Jan  1 00:00:12 (none) kernel: sh-sci: ttyS1 at MMIO 0xfe4c0000 (irq = 76) is a scif
    Jan  1 00:00:12 (none) kernel: sh-sci: ttyS2 at MMIO 0xfe4d0000 (irq = 104) is a scif
    Jan  1 00:00:12 (none) kernel: console [ttyS2] enabled
    Jan  1 00:00:12 (none) kernel: sh-sci: ttyS3 at MMIO 0xfe4c0000 (irq = 76) is a scif
    Jan  1 00:00:12 (none) kernel: sh-sci: ttyS4 at MMIO 0xfe4c0000 (irq = 76) is a scif
    Jan  1 00:00:12 (none) kernel: sh-sci: ttyS5 at MMIO 0xfe4c0000 (irq = 76) is a scif
    Jan  1 00:00:12 (none) kernel: sh-sci: ttyS6 at MMIO 0xfe4c0000 (irq = 76) is a scif
    Jan  1 00:00:12 (none) kernel: brd: module loaded
    Jan  1 00:00:12 (none) kernel: loop: module loaded
    Jan  1 00:00:12 (none) kernel: nbd: registered device at major 43
    Jan  1 00:00:12 (none) kernel: sh_eth_init
    Jan  1 00:00:12 (none) kernel:
    Jan  1 00:00:12 (none) kernel: Monolithic/DRB
    Jan  1 00:00:12 (none) kernel: sh_mii: probed
    Jan  1 00:00:12 (none) kernel: Base address at 0xfee00000, 00:00:00:00:00:00, IRQ 315.
    Jan  1 00:00:12 (none) kernel: sh_mii: probed
    Jan  1 00:00:12 (none) kernel: Base address at 0xfef00800, 00:00:00:00:00:00, IRQ 84.
    Jan  1 00:00:12 (none) kernel: sh_spi sh_spi.0: registered master spi0
    Jan  1 00:00:12 (none) kernel: m25p80 spi0.1: n25Q032a (4096 Kbytes)
    Jan  1 00:00:12 (none) kernel: Creating 9 MTD partitions on "m25p80":
    Jan  1 00:00:12 (none) kernel: 0x000000000000-0x000000080000 : "u-boot1"
    Jan  1 00:00:12 (none) kernel: 0x000000080000-0x000000100000 : "u-boot2"
    Jan  1 00:00:12 (none) kernel: 0x000000100000-0x000000110000 : "env1"
    Jan  1 00:00:12 (none) kernel: 0x000000110000-0x000000120000 : "env2"
    Jan  1 00:00:12 (none) kernel: 0x000000120000-0x000000130000 : "fru"
    Jan  1 00:00:12 (none) kernel: 0x000000130000-0x000000140000 : "res1"
    Jan  1 00:00:12 (none) kernel: 0x000000140000-0x0000001c0000 : "tracebuf"
    Jan  1 00:00:12 (none) kernel: 0x0000001c0000-0x000000340000 : "lcl"
    Jan  1 00:00:12 (none) kernel: 0x000000340000-0x000000400000 : "res2"
    Jan  1 00:00:12 (none) kernel: sh_spi sh_spi.0: registered child spi0.1
    Jan  1 00:00:12 (none) kernel: spi_sh: version 2009-06-10
    Jan  1 00:00:12 (none) kernel: mknod /dev/aess_wdtdrv c 10 130
    Jan  1 00:00:12 (none) kernel: aess_wdtdrv: initialized. (nowayout=0)
    Jan  1 00:00:12 (none) kernel: device-mapper: ioctl: 4.14.0-ioctl (2008-04-23) initialised: dm-devel@redhat.com
    Jan  1 00:00:12 (none) kernel: sh_mmcif: driver version 2010-03-17
    Jan  1 00:00:12 (none) kernel: sh-sdhi: power control pin initiated
    Jan  1 00:00:12 (none) kernel: mmc1: power off - 8f
    Jan  1 00:00:12 (none) kernel: heartbeat: version 0.1.1 loaded
    Jan  1 00:00:12 (none) kernel: sermux sermux: version 2010-05-26
    Jan  1 00:00:12 (none) kernel: nf_conntrack version 0.5.0 (3744 buckets, 14976 max)
    Jan  1 00:00:12 (none) kernel: IPv4 over IPv4 tunneling driver
    Jan  1 00:00:12 (none) kernel: ip_tables: (C) 2000-2006 Netfilter Core Team
    Jan  1 00:00:12 (none) kernel: TCP cubic registered
    Jan  1 00:00:12 (none) kernel: NET: Registered protocol family 10
    Jan  1 00:00:12 (none) kernel: lo: Disabled Privacy Extensions
    Jan  1 00:00:12 (none) kernel: tunl0: Disabled Privacy Extensions
    Jan  1 00:00:12 (none) kernel: ip6_tables: (C) 2000-2006 Netfilter Core Team
    Jan  1 00:00:12 (none) kernel: IPv6 over IPv4 tunneling driver
    Jan  1 00:00:12 (none) kernel: sit0: Disabled Privacy Extensions
    Jan  1 00:00:12 (none) kernel: NET: Registered protocol family 17
    Jan  1 00:00:12 (none) kernel: RPC: Registered udp transport module.
    Jan  1 00:00:12 (none) kernel: RPC: Registered tcp transport module.
    Jan  1 00:00:12 (none) kernel: 802.1Q VLAN Support v1.8 Ben Greear


  • Cloned VM/Server/Computer in Linux won't boot and goes to initramfs busybox Solution


    This is mainly for if you've done something silly like trying to clone a Live, running VM image.  In this example, the VM initially finds grub and tries to boot but is kicked straight into initramfs rescue mode/busybox right after this.

    If you've done this "silly" thing, you could have dataloss but a lot of times just using fsck will fix it as you are guaranteed at best to have some corruption and inconsistencies in the filesystem.  My theory is that some files were corrupt or not in their right places (eg. inode issues, unclaimed blocks etc..).

    In many of these cases, just run an fsck and you may find that you can successfully boot, but how much data you lose is dependent on your application and how much the filesystem changed before you started the copy/vs when it ended.

    The correct way is to take a snapshot or at least make sure the VM is off.  Another alternative if you can't shutdown is to do rsync or some other similar remote filecopy that constantly updates.


  • How To Add Windows 7 8 10 11 to GRUB Boot List Dual Booting


    Many times just doing an update-grub may find Windows and add it to grub, but a lot of times it won't.

     

    Create Windows in a custom grub entry like below:

    sudo vi /etc/grub.d/40_custom

    menuentry "Windows 10" {
       set root='(hd0,0)'
       chainloader + 1
    }

    Change Windows 10 to whatever you want to call it.  For example if it was for Windows 11 you'd probably want to call it "Windows 11" to avoid confusion.

    The set root= part wil also vary.  If the drive that contains windows is known to hd0 as grub then keep it the same, but if you have other drives, it could be hd1,hd2 etc... and depending on your partition table setup the second part after the "," 0 means partition 1 but sometimes it may be msdos1.

    Here's an example of booting Windows from the second hd on msdos3 partiton AKA partition #3

    menuentry "Windows 10" {
       set root='(hd0,msdos3)'
       chainloader + 1
    }

    Now update grub otherwise the added menu entry won't show or be available when you boot grub:

    sudo update-grub


  • How to configure OpenDKIM on Linux with Postfix and setup bind zonefile


    This guide assumes you have a working Postfix server and want it to sign with DKIM.

    There are a few things we  have to understand to make all of this work though, which require you to be familiar with DNS as well.

     

    1.) Install OpenDKIM

    apt install opendkim

    systemctl enable opendkim

    2.) Edit /etc/opendkim.conf

    Syslog   yes
    SyslogSuccess yes
    Mode     sv
    OmitHeaders .
    Socket   inet:8891@localhost
    Domain   yourdomain.com
    KeyTable        /etc/opendkim/KeyTable
    SigningTable   refile:/etc/opendkim/SigningTable
    ExternalIgnoreList      refile:/etc/opendkim/TrustedHosts
    InternalHosts   refile:/etc/opendkim/TrustedHosts
    UserID  opendkim:opendkim

    3.) Create your first OpenDKIM Key for your domain

    yourdomain=yourdomain.com

    mkdir -p /etc/opendkim/keys/$yourdomain
    cd /etc/opendkim/keys/$yourdomain
    opendkim-genkey -r -d $yourdomain

    4.) Configure KeyTable and SigningTable

     

    #Add this line to /etc/opendkim/KeyTable

    The "default" is what is called the selector, it could be nearly anything but we're calling it default here.  Be sure to change "yourdomain.com" to the actual domain you want DKIM signing for.

    default._domainkey.yourdomain.com yourdomain.com:default:/etc/opendkim/keys/yourdomain.com/default.private

    #Add this to line to /etc/opendkim/SigningTable

    *@yourdomain.com default._domainkey.yourdomain.com

    The * allows all e-mails from the domain to be signed, change it if this should not be the case.

    Again, be sure you change yourdomain.com to your actual domain that you setup in the KeyTable in the previous step.

    *Remember to restart opendkim after adding any new domain or the change will not be applied and e-mails will not be signed.

     

    5.) Edit your Your DNS zonefile for yourname.com
     

    Here's an example using bind/named:

    #edit bind/named DNS entry for domain/zone

    cat /etc/opendkim/keys/yourdomain.com/default.txt

    Take the output of the above and then add it to your zonefile like below:

    default._domainkey    IN    TXT    ( "v=DKIM1; k=rsa; s=email; "
          "p=blablabla" )  ; ----- DKIM key default for yourdomain.com


    Be sure to change the blablabla to the output of /etc/opendkim/keys/yourdomain.com/default.txt

    _dmarc.yourdomain.com.      IN     TXT    "v=DMARC1; p=quarantine; rua=mailto:someaddress@yourdomain.com"
     

    Be sure to change someaddress@yourdomain.com to a real address for your domain, you will receive DMARC reports to this address.

    Make sure your zonefile has a valid SPF record or none of this will work properly.

    yourdomain.com.    IN TXT "v=spf1 a mx +all"

    The above is a quick example of a zonefile entry in bind for SPF, it allows your domain's A record MX record to send mail and doesn't have a hard fail.  If for example you need to add another server's IP (perhaps another server needs to send mail for yourdomain.com) then update as below:

    As you'll see adding the +ip4:8.8.8.8 would allow a server with 8.8.8.8 to send mail for the domain.

    yourdomain.com.    IN TXT "v=spf1 a mx +ip4:8.8.8.8 +all"

     

    Set permissions to be sure:

    chown -R opendkim.opendkim /etc/opendkim

    5.) Enable OpenDKIM milter in Postfix

    # edit /etc/postfix/main.cf
    cp -a /etc/postfix/main.cf /etc/postfix/main.cf-`date +%Y%m%d-%s`
     

    #edit /etc/postfix/main.cf

    #enable dkim
    smtpd_milters           = inet:127.0.0.1:8891
    non_smtpd_milters       = $smtpd_milters
    milter_default_action   = accept

    systemctl restart postfix

     *Remember to restart opendkim after adding any new domain or the change will not be applied and e-mails will not be signed.

     

     

     

     
     

     

     


  • Debian Ubuntu 10/11/12 Linux how to get tftpd-hpa server setup tutorial


    apt install tftpd-hpa

    #change TFTP_ADDRESS to by setting address to 192.168.1.1:69 or the IP you need, otherwise it will listen on all IPs and interfaces which could be a security risk.

    # edit /etc/default/tftpd-hpa

    TFTP_USERNAME="tftp"
    TFTP_DIRECTORY="/srv/tftp"
    TFTP_ADDRESS="192.168.1.1:69"
    TFTP_OPTIONS="--secure"


    systemctl restart tftpd-hpa


    #now edit our isc dhcp server /etc/dhcp/dhcpd.conf



    #under the subnet declaration:

    subnet 192.168.1.0 netmask 255.255.255.0 {
      range 192.168.1.2 192.168.1.200;
      #deny unknown-clients;
      option routers 192.168.1.1;
      option domain-name-servers 192.168.1.1;
      next-server 192.168.1.1;
      filename "pxelinux.0";
    }


    #how to exclude hosts from receiving a DHCP
    # add this in the subnet declaration
      host whatevernameyouwant {
       hardware ethernet 00:10:28:e2:49:2e;
       ignore booting;
      }

    #comment out the ignore booting and restart dhcpd if you want to re-enable it
     


    ###
    apt install syslinux pxelinux
    #for MBR copy this

    cp /usr/lib/PXELINUX/pxelinux.0 /srv/tftp/
    cp /usr/lib/syslinux/modules/bios/ldlinux.c32 /srv/tftp/
    cp /usr/lib/syslinux//modules/bios/menu.c32 /srv/tftp/
    cp /usr/lib/syslinux//modules/bios/memdisk /srv/tftp/
    cp /usr/lib/syslinux//modules/bios/mboot.c32 /srv/tftp/
    cp /usr/lib/syslinux//modules/bios/chain.c32 /srv/tftp/
    cp /usr/lib/syslinux//modules/bios/libutil.c32 /srv/tftp/


    mkdir /srv/tftp/images
    mkdir /srv/tftp/pxelinux.cfg


    vi /srv/tftp/pxelinux.cfg/default

    default menu.c32
    prompt 5
    timeout 300

    MENU TITLE Menu
    LABEL rtt-Diagnostic
    MENU rtt-Diagnostic
    kernel ../images/kernelfs




    service isc-dhcp-server restart
     


  • efibootmgr: option requires an argument -- 'd' efibootmgr version 15 grub-install.real: error: efibootmgr failed to register the boot entry: Operation not permitted.


    This sometimes happens when trying to install the EFI version of grub to a device when you are booted into Legacy/MBR mode.  It doesn't seem to occur on all machines, but some and seems somewhat BIOS dependent.

    grub-install --target=x86_64-efi /dev/sda
    Installing for x86_64-efi platform.
    grub-install.real: warning: Couldn't find physical volume `(null)'. Some modules may be missing from core image..
    grub-install.real: warning: Couldn't find physical volume `(null)'. Some modules may be missing from core image..
    EFI variables are not supported on this system.
    efibootmgr: option requires an argument -- 'd'
    efibootmgr version 15
    usage: efibootmgr [options]
        -a | --active         sets bootnum active
        -A | --inactive       sets bootnum inactive
        -b | --bootnum XXXX   modify BootXXXX (hex)
        -B | --delete-bootnum delete bootnum
        -c | --create         create new variable bootnum and add to bootorder
        -C | --create-only    create new variable bootnum and do not add to bootorder
        -D | --remove-dups    remove duplicate values from BootOrder
        -d | --disk disk       (defaults to /dev/sda) containing loader
        -r | --driver         Operate on Driver variables, not Boot Variables.
        -e | --edd [1|3|-1]   force EDD 1.0 or 3.0 creation variables, or guess
        -E | --device num      EDD 1.0 device number (defaults to 0x80)
        -g | --gpt            force disk with invalid PMBR to be treated as GPT
        -i | --iface name     create a netboot entry for the named interface
        -l | --loader name     (defaults to "EFIubuntugrub.efi")
        -L | --label label     Boot manager display label (defaults to "Linux")
        -m | --mirror-below-4G t|f mirror memory below 4GB
        -M | --mirror-above-4G X percentage memory to mirror above 4GB
        -n | --bootnext XXXX   set BootNext to XXXX (hex)
        -N | --delete-bootnext delete BootNext
        -o | --bootorder XXXX,YYYY,ZZZZ,...     explicitly set BootOrder (hex)
        -O | --delete-bootorder delete BootOrder
        -p | --part part        (defaults to 1) containing loader
        -q | --quiet            be quiet
        -t | --timeout seconds  set boot manager timeout waiting for user input.
        -T | --delete-timeout   delete Timeout.
        -u | --unicode | --UCS-2  handle extra args as UCS-2 (default is ASCII)
        -v | --verbose          print additional information
        -V | --version          return version and exit
        -w | --write-signature  write unique sig to MBR if needed
        -y | --sysprep          Operate on SysPrep variables, not Boot Variables.
        -@ | --append-binary-args file  append extra args from file (use "-" for stdin)
        -h | --help             show help/usage
    grub-install.real: error: efibootmgr failed to register the boot entry: Operation not permitted.


  • Apache Error Won't start SSL Cert Issue Solution Unable to configure verify locations for client authentication SSL Library Error: 151441510 error:0906D066:PEM routines:PEM_read_bio:bad end line SSL Library Error: 185090057 error:0B084009:x509 certif


    [Wed Nov 01 18:47:08 2023] [error] Unable to configure verify locations for client authentication
    [Wed Nov 01 18:47:08 2023] [error] SSL Library Error: 151441510 error:0906D066:PEM routines:PEM_read_bio:bad end line
    [Wed Nov 01 18:47:08 2023] [error] SSL Library Error: 185090057 error:0B084009:x509 certificate routines:X509_load_cert_crl_file:PEM lib

    It actually gives us a good clue that at last one component of our cert is invalid/improperly formatted.  So check your CA Bundle, Cert and Key to make sure they are all correct.  After that, restart apache2 and everything should be good


  • Linux Debian Mint Ubuntu Bridge br0 gets random IP


    This can break things easily in remove environments where it was normally easy to convert a normal eth0 to a bridge under br0, and that bridge would normally have the same MAC address by default, which is desirable for most situations.

    In Debian 11 this is different for some reason now.

    https://unix.stackexchange.com/questions/681013/bridge-gets-random-mac-instead-of-port-address

    One simple solution is to set the hwaddress in /etc/network/interfaces:

    iface br0 inet static
    bridge_ports eth0
        address 172.16.1.3
        netmask 255.255.255.0
        gateway 172.16.1.1
        hwaddress 00:1d:e0:00:13:58

     

    Set the hwaddress to the mac address of eth0 to solve this problem.  What happens is that if you don't do this, the server will become inaccessible after some random amount of time, at least initially until a reboot or network restart.

    This may be a result of poor cloning without regenerating the machine-id:

    #possibly related, we need to delete the machine-id and generate a new one
    rm /var/lib/dbus/machine-id
    rm /etc/machine-id

    Regenerate new machine-id:

    The file lives in /etc and /var/lib/dbus and both must match.

    dbus-uuidgen --ensure=/etc/machine-id

    cp /etc/machine-id /var/lib/dbus/


  • redis requirements


    sysctl vm.overcommit_memory=1

    echo never > /sys/kernel/mm/transparent_hugepage/enabled
    echo 511 > /proc/sys/net/core/somaxconn

    1:M 26 Nov 2023 21:34:33.840 # WARNING: The TCP backlog setting of 511 cannot be enforced because /proc/sys/net/core/somaxconn is set to the lower value of 128.
    1:M 26 Nov 2023 21:34:33.840 # Server initialized
    1:M 26 Nov 2023 21:34:33.840 # WARNING overcommit_memory is set to 0! Background save may fail under low memory condition. To fix this issue add 'vm.overcommit_memory = 1' to /etc/sysctl.conf and then reboot or run the command 'sysctl vm.overcommit_memory=1' for this to take effect.
    1:M 26 Nov 2023 21:34:33.840 # WARNING you have Transparent Huge Pages (THP) support enabled in your kernel. This will create latency and memory usage issues with Redis. To fix this issue run the command 'echo never > /sys/kernel/mm/transparent_hugepage/enabled' as root, and add it to your /etc/rc.local in order to retain the setting after a reboot. Redis must be restarted after THP is disabled.
    1:M 26 Nov 2023 21:34:33.840 * Ready to accept connections


  • How to kill a docker swarm


    Assign way more replicas than you have of memory on all nodes and watch the Swarm crash which can easily reproduce in a small VM for testing.

    root@Deb11Docker01:~# docker ps
    CONTAINER ID   IMAGE     COMMAND                  CREATED        STATUS        PORTS      NAMES
    1336c9b0275e   redis:5   "docker-entrypoint.s…"   13 hours ago   Up 13 hours   6379/tcp   clever_bouman.7.ue8ff3g3ef2pv4ezu4cy5qc23
    f5496728a590   redis:5   "docker-entrypoint.s…"   13 hours ago   Up 13 hours   6379/tcp   clever_bouman.11.kk3ij52i7dq0p4xqe3r05apzc
    b0b2a47dc6b6   redis:5   "docker-entrypoint.s…"   13 hours ago   Up 13 hours   6379/tcp   clever_bouman.8.p5woskaqpyc6kod0njfmdq5m9
    6dc2c2a0f8f2   redis:5   "docker-entrypoint.s…"   13 hours ago   Up 13 hours   6379/tcp   clever_bouman.23.x27zfpun3mf8j40qofers8mqs
    91e264dc4ec9   redis:5   "docker-entrypoint.s…"   13 hours ago   Up 13 hours   6379/tcp   clever_bouman.17.lma6im540lw77uk6nolxg7rej
    47830106e26d   redis:5   "docker-entrypoint.s…"   13 hours ago   Up 13 hours   6379/tcp   clever_bouman.18.8y6rm833sgxvbtnj1np4e8q0i
    a4246ca036e9   redis:5   "docker-entrypoint.s…"   13 hours ago   Up 13 hours   6379/tcp   clever_bouman.19.z7jj4hiz6sjyux2hmgy6d9449
    965754f35798   redis:5   "docker-entrypoint.s…"   13 hours ago   Up 13 hours   6379/tcp   clever_bouman.13.ue6b58bkx4w44n8gkht0bu0r8
    d4a9572cae71   redis:5   "docker-entrypoint.s…"   13 hours ago   Up 13 hours   6379/tcp   clever_bouman.6.4sa0179qxpoy4m522d5mc2shy
    1ea0cd1e493c   redis:5   "docker-entrypoint.s…"   13 hours ago   Up 13 hours   6379/tcp   clever_bouman.28.nmzn1jd77lybe211thm1f9q8n
    root@Deb11Docker01:~# docker service update --replicas=60 clever_bouman
    clever_bouman
    overall progress: 51 out of 60 tasks
    Error response from daemon: rpc error: code = DeadlineExceeded desc = context deadline exceeded
    root@Deb11Docker01:~# docker service update --replicas=40 clever_bouman
    Error response from daemon: rpc error: code = Unknown desc = The swarm does not have a leader. It's possible that too few managers are online. Make sure more than half of the managers are online.

    [137927.550974] oom-kill:constraint=CONSTRAINT_NONE,nodemask=(null),cpuset=docker.service,mems_allowed=0,global_oom,task_memcg=/system.slice/docker.service,task=dockerd,pid=55994,uid=0
    [137927.551065] Out of memory: Killed process 55994 (dockerd) total-vm:1859264kB, anon-rss:80588kB, file-rss:0kB, shmem-rss:0kB, UID:0 pgtables:664kB oom_score_adj:0



    root@Deb11Docker02:~# ps aux|grep container
    root        1404  0.0  3.5 1370844 35244 ?       Ssl  Nov30   1:44 /usr/bin/containerd
    root       48601  1.3  0.3 1328876 3528 ?        Sl   02:34   0:08 /usr/bin/containerd-shim-runc-v2 -namespace moby -id 8be1aac07725843e36d47934209ee280ec2705df3bd098a9320eb0abd659eaaa -address /run/containerd/containerd.sock
    root       49954  0.9  0.4 1329132 4456 ?        Sl   02:35   0:05 /usr/bin/containerd-shim-runc-v2 -namespace moby -id 3445ae9397be1d9cbb80dcf9679c7765c2e6f5093672543b4c16d5b0e7935c71 -address /run/containerd/containerd.sock
    root       50004  0.9  1.4 1322088 14560 ?       Sl   02:35   0:05 /usr/bin/containerd-shim-runc-v2 -namespace moby -id 72301e658829c8fc3679b0744a110100cd31423c6f510bf330e8b90842c308cb -address /run/containerd/containerd.sock
    root       50037  0.7  0.6 1314148 6360 ?        Sl   02:35   0:04 /usr/bin/containerd-shim-runc-v2 -namespace moby -id 13f22679e833befe833f14073d800d6fa6a04e44bb30e317dc01a282b19a3e1b -address /run/containerd/containerd.sock
    root       50045  0.7  0.4 1322088 4560 ?        Sl   02:35   0:04 /usr/bin/containerd-shim-runc-v2 -namespace moby -id 1c0e7f3e65032590ac3078afc2b227c1003680c7b8c48c755193a27b17027aec -address /run/containerd/containerd.sock
    root       50061  0.7  0.6 1328940 6472 ?        Sl   02:35   0:04 /usr/bin/containerd-shim-runc-v2 -namespace moby -id b258bac1daebc0eebc75195802f22631991b99effda0c8dd32d916dda53b3ecd -address /run/containerd/containerd.sock
    root       50109  0.7  0.4 1322088 4672 ?        Sl   02:35   0:04 /usr/bin/containerd-shim-runc-v2 -namespace moby -id 5d9b13fc6a53e71a9b0efcf9524b4b410843a6351b273020cb38bd49fdeda8d1 -address /run/containerd/containerd.sock
    root       50150  1.0  0.6 1320680 6564 ?        Sl   02:35   0:05 /usr/bin/containerd-shim-runc-v2 -namespace moby -id cb18a243b3cc30d4d62d9fec8995c14da81e8c2a3ed6de670a880a4e174c4e55 -address /run/containerd/containerd.sock
    root       51985  0.0  0.0   6180   716 pts/0    S+   02:44   0:00 grep container
    root@Deb11Docker02:~# killall -9 containerd-shim-runc-v2
    root@Deb11Docker02:~# ps aux|grep container
    root        1404  0.0  3.5 1379040 35244 ?       Ssl  Nov30   1:44 /usr/bin/containerd
    root       52092  0.0  0.0   6180   716 pts/0    S+   02:45   0:00 grep container
    root@Deb11Docker02:~#


     docker swarm init --force-new-cluster


  • docker swarm silly issues


    The error below can be caused by a gateway that is unpingable:

    docker swarm join --token SWMTKN-1-1kogg8da68gtb1j7ezaddowyy9s0an5s9tue758o20k18liskw-5h3f61hrrmv3u6agshvbtcklf 172.16.1.80:2377
    Error response from daemon: manager stopped: can't initialize raft node: rpc error: code = Unknown desc = could not connect to prospective new cluster member using its advertised address: rpc error: code = DeadlineExceeded desc = context deadline exceeded

    Nov 28 02:01:52 dockertest01 dockerd[14612]: time="2023-11-28T02:01:52.189193519-05:00" level=warning msg="Failed to dial 172.16.1.1:2377: grpc: the connection is closing; please retry." module=grpc


    The error below doesn't make sense at first, you join a certain IP but the error comes back as trying to connect to a different IP. 

    This can be caused my forwarding and / or proxies which should be disabled to fix the problem.

    Even with pingable gateway it now wants to somehow connect on port 2377 through the gateway instead of the .80 manager node IP?

     docker swarm join --token SWMTKN-1-1kogg8da68gtb1j7ezaddowyy9s0an5s9tue758o20k18liskw-5h3f61hrrmv3u6agshvbtcklf 172.16.1.80:2377
    Error response from daemon: manager stopped: can't initialize raft node: rpc error: code = Unknown desc = could not connect to prospective new cluster member using its advertised address: rpc error: code = Unavailable desc = all SubConns are in TransientFailure, latest connection error: connection error: desc = "transport: Error while dialing dial tcp 172.16.1.1:2377: connect: connection refused"


  • isc-dhcp-server dhcpd how to get longer lease


    You can do a static lease that is tied to the MAC address but what a lot of users prefer is that they come into the office or lab the next day and that their device gets assigned the same IP address (if possible).

    As we can see in the dhcpd logs that there is threshold that is defaulted as we'll show later.  Whatever the threshold is set at, if the lease is younger than the threshold, it will keep the same lease.  In other words, if the device goes to sleep or is powered off for too long, it would be more likely to get a new IP.

    dhcpd[2408362]: reuse_lease: lease age 138 (secs) under 25% threshold, reply with unaltered, existing lease for 172.17.1.7
     

    This is all controlled in dhcpd.conf

    The default lease time is 10 minutes and maximum 120 minutes.  This is clearly not sufficient for user's who may be offline for several hours or a few days.

    #default-lease-time 600;
    #max-lease-time 7200;

    Some suggest putting a -1 which is infinite, as the number which is not recommended but MAY be OK in smaller settings.  In larger settings you would want some sort of finite time even if it's x amount of days.

    default-lease-time -1;
    max-lease-time -1;

     


  • nvidia cannot resume from sleep Comm: nvidia-sleep.sh Tainted: Linux Ubuntu Mint Debian


    This seems to happen in many different drivers but it happened more often in newer versions such as 530 vs 525.

    Then nvidia-modeset goes to 100%

    There are many reports of this appearing since driver 4.70 and I can confirm I've seen this in various machines.

    https://forums.developer.nvidia.com/t/black-screen-when-resuming-systemctl-suspend-using-nvidia-driver-470-57-02-with-kernel-5-8-0-63-generic-on-gtx-970-xubuntu-20-04-lts/184644/57

    https://forums.developer.nvidia.com/t/not-coming-back-from-suspend/176446
    https://forums.developer.nvidia.com/t/systemds-suspend-then-hibernate-not-working-in-nvidia-optimus-laptop/213690
    https://forums.developer.nvidia.com/t/black-screen-when-resuming-systemctl-suspend-using-nvidia-driver-470-57-02-with-kernel-5-8-0-63-generic-on-gtx-970-xubuntu-20-04-lts/184644
     

    This report proposes a fix that work for some people:

    https://forums.developer.nvidia.com/t/fixed-suspend-resume-issues-with-the-driver-version-470/187150

    Basically the idea is to disable all nvidia related systemd services:

    systemctl stop nvidia-suspend
    systemctl stop nvidia-hibernate
    systemctl stop nvidia-resume

    systemctl disable nvidia-suspend
    systemctl disable nvidia-hibernate
    systemctl disable nvidia-resume

    #let's just copy it and save it to ~ just in case
    mv /lib/systemd/system-sleep/nvidia ~

    Here is the dmesg output when this happens, the system wakes up but the GPU hangs:

    [245728.273127] WARNING: CPU: 12 PID: 25855 at /var/lib/dkms/nvidia/525.105.17/build/nvidia/nv.c:3913 nv_restore_user_channels+0x12f/0x1e0 [nvidia]
    [245728.273128] Modules linked in: bluetooth ecdh_generic ecc uas usb_storage ufs qnx4 hfsplus hfs minix ntfs msdos jfs xfs cpuid snd_seq_dummy xt_conntrack nf_conntrack_netlink nfnetlink xfrm_user xfrm_algo xt_addrtype br_netfilter aufs xt_CHECKSUM iptable_mangle xt_MASQUERADE iptable_nat nf_nat nf_conntrack nf_defrag_ipv6 nf_defrag_ipv4 xt_tcpudp bridge stp llc iptable_filter bpfilter overlay nls_iso8859_1 binfmt_misc nvidia_uvm(OE) nvidia_drm(POE) nvidia_modeset(POE) nvidia(POE) intel_rapl_msr intel_rapl_common input_leds sb_edac x86_pkg_temp_thermal intel_powerclamp kvm_intel snd_hda_codec_hdmi kvm snd_hda_codec_realtek snd_hda_codec_generic crct10dif_pclmul crc32_pclmul ledtrig_audio ghash_clmulni_intel aesni_intel snd_hda_intel snd_intel_dspcfg crypto_simd drm_kms_helper snd_hda_codec cryptd snd_hda_core drm glue_helper snd_hwdep fb_sys_fops snd_pcm syscopyarea snd_seq_midi snd_seq_midi_event sysfillrect snd_rawmidi rapl sysimgblt snd_seq intel_cstate mei_me dell_smbios snd_seq_device
    [245728.273154]  dcdbas snd_timer dell_smm_hwmon snd wmi_bmof intel_wmi_thunderbolt dell_wmi_descriptor mei soundcore lpc_ich mac_hid mxm_wmi sch_fq_codel hwmon_vid coretemp parport_pc ppdev lp parport ip_tables x_tables autofs4 hid_generic usbhid hid btrfs zstd_compress raid10 raid456 async_raid6_recov async_memcpy async_pq async_xor async_tx xor raid6_pq libcrc32c raid0 multipath linear dm_mirror dm_region_hash dm_log raid1 igb e1000e dca i2c_algo_bit ahci libahci wmi
    [245728.273172] CPU: 12 PID: 25855 Comm: nvidia-sleep.sh Tainted: P           OE     5.4.0-149-generic #166~18.04.1-Ubuntu
    [245728.273172] Hardware name: rtt
    [245728.273293] RIP: 0010:nv_restore_user_channels+0x12f/0x1e0 [nvidia]
    [245728.273294] Code: 44 89 f8 5b 41 5c 41 5d 41 5e 41 5f 5d c3 4c 89 ef 45 31 ff e8 42 8d 89 d5 44 89 f8 5b 41 5c 41 5d 41 5e 41 5f 5d c3 45 31 f6 <0f> 0b 4c 89 e7 e8 d7 8c 89 d5 be 01 00 00 00 48 89 df e8 0a a3 00
    [245728.273295] RSP: 0018:ffffac3d849d7dc8 EFLAGS: 00010206
    [245728.273296] RAX: 0000000000000003 RBX: ffff91f0c026d000 RCX: ffffac3d849d7d48
    [245728.273296] RDX: ffffac3d80b93e50 RSI: 0000000000000246 RDI: ffffac3d849d7cf8
    [245728.273297] RBP: ffffac3d849d7df0 R08: 0000000000000000 R09: 0000000000000001
    [245728.273297] R10: ffffac3d849d7aa0 R11: 00000000000084ca R12: ffff91f0c026d678
    [245728.273298] R13: ffff91f0c026d550 R14: ffff91eefdd13000 R15: 0000000000000003
    [245728.273299] FS:  00007f6323bf9740(0000) GS:ffff91f0cf900000(0000) knlGS:0000000000000000
    [245728.273299] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
    [245728.273300] CR2: 0000557b4901f008 CR3: 000000041d754004 CR4: 00000000003606e0
    [245728.273300] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
    [245728.273301] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
    [245728.273301] Call Trace:
    [245728.273378]  nv_set_system_power_state+0x2d7/0x480 [nvidia]
    [245728.273455]  nv_procfs_write_suspend+0xe3/0x160 [nvidia]
    [245728.273458]  proc_reg_write+0x3e/0x60
    [245728.273460]  __vfs_write+0x1b/0x40
    [245728.273461]  vfs_write+0xb1/0x1a0
    [245728.273462]  ksys_write+0xa7/0xe0
    [245728.273463]  __x64_sys_write+0x1a/0x20
    [245728.273465]  do_syscall_64+0x57/0x190
    [245728.273468]  entry_SYSCALL_64_after_hwframe+0x5c/0xc1
    [245728.273469] RIP: 0033:0x7f63232f7104
    [245728.273470] Code: 89 02 48 c7 c0 ff ff ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 66 90 48 8d 05 e1 08 2e 00 8b 00 85 c0 75 13 b8 01 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 54 f3 c3 66 90 41 54 55 49 89 d4 53 48 89 f5
    [245728.273471] RSP: 002b:00007ffc609a56c8 EFLAGS: 00000246 ORIG_RAX: 0000000000000001
    [245728.273472] RAX: ffffffffffffffda RBX: 0000000000000007 RCX: 00007f63232f7104
    [245728.273472] RDX: 0000000000000007 RSI: 0000557b4901f700 RDI: 0000000000000001
    [245728.273473] RBP: 0000557b4901f700 R08: 000000000000000a R09: 0000000000000006
    [245728.273473] R10: 000000000000000a R11: 0000000000000246 R12: 00007f63235d3760
    [245728.273474] R13: 0000000000000007 R14: 00007f63235cf2a0 R15: 00007f63235ce760
    [245728.273475] ---[ end trace 2ff2aa81ae8de839 ]---
    [245728.273484] ------------[ cut here ]------------
    [245728.273559] WARNING: CPU: 12 PID: 25855 at /var/lib/dkms/nvidia/525.105.17/build/nvidia/nv.c:4143 nv_set_system_power_state+0x31f/0x480 [nvidia]
    [245728.273560] Modules linked in: bluetooth ecdh_generic ecc uas usb_storage ufs qnx4 hfsplus hfs minix ntfs msdos jfs xfs cpuid snd_seq_dummy xt_conntrack nf_conntrack_netlink nfnetlink xfrm_user xfrm_algo xt_addrtype br_netfilter aufs xt_CHECKSUM iptable_mangle xt_MASQUERADE iptable_nat nf_nat nf_conntrack nf_defrag_ipv6 nf_defrag_ipv4 xt_tcpudp bridge stp llc iptable_filter bpfilter overlay nls_iso8859_1 binfmt_misc nvidia_uvm(OE) nvidia_drm(POE) nvidia_modeset(POE) nvidia(POE) intel_rapl_msr intel_rapl_common input_leds sb_edac x86_pkg_temp_thermal intel_powerclamp kvm_intel snd_hda_codec_hdmi kvm snd_hda_codec_realtek snd_hda_codec_generic crct10dif_pclmul crc32_pclmul ledtrig_audio ghash_clmulni_intel aesni_intel snd_hda_intel snd_intel_dspcfg crypto_simd drm_kms_helper snd_hda_codec cryptd snd_hda_core drm glue_helper snd_hwdep fb_sys_fops snd_pcm syscopyarea snd_seq_midi snd_seq_midi_event sysfillrect snd_rawmidi rapl sysimgblt snd_seq intel_cstate mei_me dell_smbios snd_seq_device
    [245728.273574]  dcdbas snd_timer dell_smm_hwmon snd wmi_bmof intel_wmi_thunderbolt dell_wmi_descriptor mei soundcore lpc_ich mac_hid mxm_wmi sch_fq_codel hwmon_vid coretemp parport_pc ppdev lp parport ip_tables x_tables autofs4 hid_generic usbhid hid btrfs zstd_compress raid10 raid456 async_raid6_recov async_memcpy async_pq async_xor async_tx xor raid6_pq libcrc32c raid0 multipath linear dm_mirror dm_region_hash dm_log raid1 igb e1000e dca i2c_algo_bit ahci libahci wmi
    [245728.273583] CPU: 12 PID: 25855 Comm: nvidia-sleep.sh Tainted: P        W  OE     5.4.0-149-generic #166~18.04.1-Ubuntu
    [245728.273583] Hardware name: rtt
    [245728.273664] RIP: 0010:nv_set_system_power_state+0x31f/0x480 [nvidia]
    [245728.273665] Code: ff e8 f5 e8 00 00 48 c7 c7 20 73 df c3 e8 e9 5e 89 d5 89 1d e7 9c 38 03 e9 4a fd ff ff 4c 89 f7 e8 96 59 89 d5 e9 49 fe ff ff <0f> 0b eb b8 45 31 ff 48 c7 c7 d0 72 df c3 45 31 e4 e8 7b 59 89 d5
    [245728.273666] RSP: 0018:ffffac3d849d7e00 EFLAGS: 00010206
    [245728.273667] RAX: 0000000000000003 RBX: 0000000000000002 RCX: 000000000001d4c0
    [245728.273667] RDX: 000000000001d4bf RSI: 9380d93cdab66952 RDI: 00003a4cb021fac0
    [245728.273668] RBP: ffffac3d849d7e30 R08: 0000000000000000 R09: 0000000000000001
    [245728.273668] R10: ffffac3d849d7aa0 R11: 00000000000084ca R12: ffff91f0c026d000
    [245728.273669] R13: 0000000000000000 R14: 0000557b4901f700 R15: ffff91ede71f6800
    [245728.273669] FS:  00007f6323bf9740(0000) GS:ffff91f0cf900000(0000) knlGS:0000000000000000
    [245728.273670] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
    [245728.273670] CR2: 0000557b4901f008 CR3: 000000041d754004 CR4: 00000000003606e0
    [245728.273671] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
    [245728.273671] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
    [245728.273672] Call Trace:
    [245728.273748]  nv_procfs_write_suspend+0xe3/0x160 [nvidia]
    [245728.273750]  proc_reg_write+0x3e/0x60
    [245728.273752]  __vfs_write+0x1b/0x40
    [245728.273753]  vfs_write+0xb1/0x1a0
    [245728.273754]  ksys_write+0xa7/0xe0
    [245728.273755]  __x64_sys_write+0x1a/0x20
    [245728.273756]  do_syscall_64+0x57/0x190
    [245728.273758]  entry_SYSCALL_64_after_hwframe+0x5c/0xc1
    [245728.273758] RIP: 0033:0x7f63232f7104
    [245728.273759] Code: 89 02 48 c7 c0 ff ff ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 66 90 48 8d 05 e1 08 2e 00 8b 00 85 c0 75 13 b8 01 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 54 f3 c3 66 90 41 54 55 49 89 d4 53 48 89 f5
    [245728.273760] RSP: 002b:00007ffc609a56c8 EFLAGS: 00000246 ORIG_RAX: 0000000000000001
    [245728.273760] RAX: ffffffffffffffda RBX: 0000000000000007 RCX: 00007f63232f7104
    [245728.273761] RDX: 0000000000000007 RSI: 0000557b4901f700 RDI: 0000000000000001
    [245728.273761] RBP: 0000557b4901f700 R08: 000000000000000a R09: 0000000000000006
    [245728.273762] R10: 000000000000000a R11: 0000000000000246 R12: 00007f63235d3760
    [245728.273762] R13: 0000000000000007 R14: 00007f63235cf2a0 R15: 00007f63235ce760
    [245728.273763] ---[ end trace 2ff2aa81ae8de83a ]---
    [245731.275215] nvidia-modeset: WARNING: GPU:0: Lost display notification (0:0x00000000); continuing.
    [245733.531067] nvidia-modeset: ERROR: GPU:0: Idling display engine timed out: 0x0000947d:0:0:407

     


  • zfs and LUKS how to recover in Linux


    Sometimes users take their removal drives and unplug and replug them to test what happens during the failure of a disk.  However, this breaks things quite badly due to the /dev/mapper in LUKS not coming back online due to it not being closed.

    In other words, generally with non-encrypted drives the process is smooth but when encrypted you may want to follow a strategy like this:

    We can see below that both disks are unavailable as they were physically removed from the server.

    zpool status

      pool: rttpool
     state: UNAVAIL
    status: One or more devices are faulted in response to IO failures.
    action: Make sure the affected devices are connected, then run 'zpool clear'.
       see: http://zfsonlinux.org/msg/ZFS-8000-HC
      scan: none requested
    config:

        NAME            STATE     READ WRITE CKSUM
        rttpool         UNAVAIL      0     0     0  insufficient replicas
          mirror-0      UNAVAIL      0     0     0  insufficient replicas
            zpool-sdj1  FAULTED      0     0     0  corrupted data
            zpool-sdk1  FAULTED      0     0     0  corrupted data
    errors: List of errors unavailable: pool I/O is currently suspended


    Conventional wisdom says to clear the error after replugging the disks but does this work with LUKS?


    root@rttbox:/home/rtt# zpool clear rttpool zpool-sdj1
    cannot clear errors for zpool-sdj1: I/O error
    root@rttbox:/home/rtt# zpool clear rttpool zpool-sdj
    cannot clear errors for zpool-sdj: no such device in pool
    root@rttbox:/home/rtt# zpool clear rttpool zpool-sdj1
    cannot clear errors for zpool-sdj1: I/O error
    root@rttbox:/home/rtt# zpool clear rttpool zpool-sdk1
    cannot clear errors for zpool-sdk1: I/O error


    As we can see, no it doesn't work.

    Sometimes we may need to remove zpool.cache

    #at your own risk do not try in production or not as a first resort just in case

    rm /etc/zfs/zpool.cache

    Now let's force clear the pool


     zpool clear -nF rttpool
    root@rttbox:/home/rtt# zpool status
      pool: rttpool
     state: UNAVAIL
    status: One or more devices are faulted in response to IO failures.
    action: Make sure the affected devices are connected, then run 'zpool clear'.
       see: http://zfsonlinux.org/msg/ZFS-8000-HC
      scan: none requested
    config:

        NAME            STATE     READ WRITE CKSUM
        rttpool         UNAVAIL      0     0     0  insufficient replicas
          mirror-0      UNAVAIL      0     0     0  insufficient replicas
            zpool-sdj1  FAULTED      0     0     0  too many errors
            zpool-sdk1  FAULTED      0     0     0  too many errors
    errors: List of errors unavailable: pool I/O is currently suspended

    It still doesn't work as we can see.

    How about clearing the device in the pool itself?


    root@rttbox:/home/rtt# zpool clear -nF rttpool zpool-sdj1
    root@rttbox:/home/rtt# zpool clear -nF rttpool zpool-sdk1


    root@rttbox:/home/rtt# zpool online rttpool zpool-sdk1
    cannot online zpool-sdk1: pool I/O is currently suspended
    root@rttbox:/home/rtt# zpool online rttpool zpool-sdj1
    cannot online zpool-sdj1: pool I/O is currently suspended

    We can see that it still doesn't fix it.

    The Actual Solution

    Properly use cryptsetup to close and remove the zpool devices.

    cryptsetup close zpool-sdj1
    cryptsetup close zpool-sdk1

    Now reopen the devices:

    cryptsetup open /dev/sdj1 zpool-sdj1
    cryptsetup open /dev/sdk1 zpool-sdk1


    #then do cryptsetup open
    zpool clear -nFX rttpool


    now it works!


     zpool status
      pool: rttpool
     state: ONLINE
      scan: resilvered 160K in 0h0m with 0 errors on Thu Feb  1 23:01:59 2024
    config:

        NAME            STATE     READ WRITE CKSUM
        rttpool         ONLINE       0     0     0
          mirror-0      ONLINE       0     0     0
            zpool-sdj1  ONLINE       0     0     0
            zpool-sdk1  ONLINE       0     0     0

    errors: No known data errors

     

    How To Recover After Moving ZFS Disks to new computer/server

    If your disks are ready to go, zpool import will scan all disks looking for ZFS.

    zpool import
       pool: rttpool
         id: 125324434212034535323
      state: ONLINE
     action: The pool can be imported using its name or numeric identifier.
     config:

        rttpool         ONLINE
          mirror-0      ONLINE
            zpool-sdc1  ONLINE
            zpool-sdd1  ONLINE

     

    Now just import it by the numeric ID 125324434212034535323 or the pool name rttpool

    zpool import 125324434212034535323

     


  • [error] (28)No space left on device: Cannot create SSLMutex Apache Solution Linux CentOS Ubuntu Debian Mint


    Have you got this error from Apache?

    [notice] suEXEC mechanism enabled (wrapper: /usr/sbin/suexec)
    [error] (28)No space left on device: Cannot create SSLMutex

    At first glance it appears that you may be out of disk space but the issue is ipc or interprocess communication.

    This will clear out the ipcs processes so things can work, this often happens during high traffic and may be a sign of DDOS.

    The command below will fix it, it will list all of the ipcs processes that belong to your apache user (change the part in bold to whatever apache runs as) and then

    ipcs -s | grep YOURAPACHEuser | awk '{ print $2 }' | xargs -n 1 ipcrm -s

    The above should fix it, but if you're curious here is the raw output of ipcs -s on a random VM.

    ------ Semaphore Arrays --------
    key        semid      owner      perms      nsems     
    0x00000000 0          root       600        1         
    0x00000000 65537      root       600        1         
    0x00000000 1081346    apache     600        1         
    0x00000000 1114115    apache     600        1  

    That's why we do awk on the second column to get the semid, and then we pipe to xargs which then uses the ipcrm -s command to remove all of the semid's that we found.


  • Save money on bandwidth by disabling reflective rpc queries in Linux CentOS RHEL Ubuntu Debian


    Even today we see a lot of servers that have different services and ports open for rpc and this creates not only potential inward vulnerabilities but perhaps more common, the abuse of your network resources in reflective rpc queries.

    To stop this problem, you should disable and remove all services relating to rpc or at least block all relevant ports for the service.

    Surprisingly, there are still some providers and OS installs in Linux that install these services and leave them open.  I've seen it cost companies up to thousands per month or more based on RPC being open and available which is then used in reflective DDOS.

    Disable these services relating to RPC to stop the abuse:

    rpcbind
    rpcgssd

    One common thing is that you may find servers with unexpectedly higher traffic than normal that cannot be attributed to the main applications running.  It may be less obvious if it's a slight bump in traffic on already busy nodes, so look carefully and ensure your base images/containers are locked down.


  • How to access a disk with bad superblock Linux Ubuntu Debian Redhat CentOS ext3 ext4


    Have you ever tried mounting a partition that you exists but you get this error?

    mount: /mnt: can't read superblock on /dev/sda1.

    The superblock in this example was bad because the physical disk had corruption and bad blocks/sectors.  However, the data was generally accessible and you can always try this trick below (with caution and no warranty).

    This is specifically for filesystems that place superblocks in multiple locations, which makes the drive accessible.

    Run the mkfs for your filesystem, in this case it was ext4 and pass the "-n" option. 

    mkfs.ext3 -n /dev/sda1

    *Do not forget the -n above or you will destroy the partition.

    Then you'll see the prompt below, once again make sure you used -n

           -n     Causes  mke2fs  to not actually create a filesystem, but display
                  what it would do if it were to create a filesystem.  This can be
                  used  to  determine the location of the backup superblocks for a
                  particular filesystem, so long as  the  mke2fs  parameters  that
                  were  passed when the filesystem was originally created are used
                  again.  (With the -n option added, of course!)
     

    Hit y to proceed as long as you're sure that you used the -n flag.


    mke2fs 1.44.1 (24-Mar-2018)
    /dev/sda1 contains a ext4 file system
        last mounted on / on Wed Jun  8 11:40:24 2022
    Proceed anyway? (y,N) y

    Then you'll hopefully see a list of superblocks as below:


    ext2fs_check_if_mount: Can't check if filesystem is mounted due to missing mtab file while determining whether /dev/sda1 is mounted.
    Creating filesystem with 120038912 4k blocks and 30015488 inodes
    Filesystem UUID: 91fcf16a-7f97-47cf-82b3-654d7dca6d70
    Superblock backups stored on blocks:
        32768, 98304, 163840, 229376, 294912, 819200, 884736, 1605632, 2654208,
        4096000, 7962624, 11239424, 20480000, 23887872, 71663616, 78675968,
        102400000



    You can try any of those locations, if the disk is badly damaged you may need to try a few different superblocks.

    Here is how you would mount with one of the superblocks above.

    mount -o sb=4096000 /dev/sda1 /mnt
     

    The -o sb= is where we plugin one of the superblocks we located earlier, and I used one of them from 4096000. 

    Hopefully you can access and recover most of your data if this happens to you.


  • ImageMagick error convert solution - convert-im6.q16: cache resources exhausted


    convert-im6.q16: DistributedPixelCache '127.0.0.1' @ error/distribute-cache.c/ConnectPixelCacheServer/244.
    convert-im6.q16: cache resources exhausted `/tmp/magick-27777Al6FGY7dhyKt10' @ error/cache.c/OpenPixelCache/3984.
    convert-im6.q16: DistributedPixelCache '127.0.0.1' @ error/distribute-cache.c/ConnectPixelCacheServer/244.
    convert-im6.q16: cache resources exhausted `/tmp/magick-277772Y_-pJnMdT2r1' @ error/cache.c/OpenPixelCache/3984.
    convert-im6.q16: DistributedPixelCache '127.0.0.1' @ error/distribute-cache.c/ConnectPixelCacheServer/244.
    convert-im6.q16: cache resources exhausted `/tmp/magick-27777m6KQRhWOtkWp1' @ error/cache.c/OpenPixelCache/3984.
    convert-im6.q16: DistributedPixelCache '127.0.0.1' @ error/distribute-cache.c/ConnectPixelCacheServer/244.
    convert-im6.q16: cache resources exhausted `/tmp/magick-27777ERzzOPUYQMc11' @ error/cache.c/OpenPixelCache/3984.


     

    You just have to increase the limits in policy.xml to solve the issue:

    vi /etc/ImageMagick-6/policy.xml

    Set values like this (increase as necessary):


    <policy domain="resource" name="area" value="6GiB"/>
    <policy domain="resource" name="disk" value="6GiB"/>
    <policy domain="resource" name="memory" value="4GiB"/>
    <policy domain="resource" name="map" value="4GiB"/>

    Be sure not to set levels that are bigger than your disk size and available RAM.


  • PTY allocation request failed on channel 0 solution


    PTY allocation request failed on channel 0


    You may have messed up your environment and specifically under /dev you may have remounted a wrong source point or otherwise killed /dev/pts

    The solution is to recreate /dev/pts or fix whatever caused it to be wiped out or broken.

    In verbose mode the client may show this:

    #verbose client
    Authenticated to 172.16.17.2 ([172.16.17.2]:22).
    debug1: channel 0: new [client-session]
    debug1: Requesting no-more-sessions@openssh.com
    debug1: Entering interactive session.
    debug1: pledge: network


  • docker error not supported as upperdir failed to start daemon: error initializing graphdriver: driver not supported


    Nov 15 17:00:49 rttbox kernel: overlayfs: filesystem on '/var/lib/docker/overlay2/check-overlayfs-support450709549/upper' not supported as upperdir
    Nov 15 17:00:49 rttbox dockerd[93755]: failed to start daemon: error initializing graphdriver: driver not supported

    The above error is often/normally caused because you are trying to run docker out of an unsuitable directory/filesystem.  For example if you try to place docker's data inside an existing overlayfs2 location, then you will get this error.  You cannot put another overlayfs2 layer from docker over top of an already existing overlayfs2.


  • Migrated Linux Ubuntu Mint not starting services due to broken /var/run and dbus - Failed to connect to bus: No such file or directory solution


    This is a weird issue as sometimes when upgrading or even migrating, this could happen and the reason is simple but maybe not 100% obvious at first. 

    You will find that your GUI doesn't load and most services fail to start, even logind

    Here are some errors you may see:

    Mar 13 22:22:23 rttbox systemd-logind[2892]: Failed to connect to system bus: No such file or directory
    Mar 13 22:22:23 rttbox systemd-logind[2892]: Failed to fully start up daemon: No such file or directory
    Mar 13 22:22:24 rttbox systemd-logind[3795]: Failed to connect to system bus: No such file or directory

    Mar 13 22:22:47 rttbox dbus-daemon[2282]: [system] Failed to activate service 'org.freedesktop.ColorManager': timed out (service_start_timeout=25000ms)
    Mar 13 22:22:47 rttbox dbus-daemon[2282]: [system] Failed to activate service 'org.freedesktop.systemd1': timed out (service_start_timeout=25000ms)
    Mar 13 22:22:47 rttbox dbus-daemon[2282]: [system] Failed to activate service 'org.freedesktop.PolicyKit1': timed out (service_start_timeout=25000ms)
    Mar 13 22:22:48 rttbox dbus-daemon[2282]: [system] Failed to activate service

     

    The easiest way to know if this is your cause is to check /var/run:

    ls -al /var/run
    lrwxrwxrwx 1 root root 4 Jul  2  2019 /var/run -> /run

    /var/run should be a symlink to /run, if it's not then you'll need to fix it like this:

    First we copy any relevant contents of /var/run into /run, then we delete /var/run and resymlink it to /run as it should be.

    cp -a /var/run/* /run/
    rm -rf /var/run
    ln -s /run /var/run

    Now make /run/dbus in case it's not there and restart the dbus service:

    mkdir /run/dbus
    systemctl restart dbus

    After this everything should be OK, you may need to reboot if it's still not.


  • qemu-system-x86_64: Initialization of device ide-hd failed: Failed to get


    You start a qemu like this and another VM already started with the same .iso

    qemu-system-x86_64 -enable-kvm -m 4096 -cdrom some.iso

    But you get this error:

    qemu-system-x86_64: Initialization of device ide-hd failed: Failed to get "write" lock
    Is another process using the image [some.iso]?

    It's odd because the -cdrom by default is read-only and qemu should not want or care about getting write lock on the .iso.

    What causes this lock issue with an iso?

    qemu-system-x86_64 -enable-kvm -m 4096 some.iso

    Note that the .iso above was used, it will work and boot but it was passed to QEMU the same way as a normal disk image, so therefore it puts a write lock on it, even though it doesn't need to be.

    Solution Use The ISO as a -cdrom

    Make sure that you use -cdrom and then you can start unlimited amounts of VMs using that image.

    qemu-system-x86_64 -enable-kvm -m 4096 -cdrom some.iso


  • File "/usr/local/lib/python3.5/dist-packages/pip/_internal/utils/entrypoints.py", line 12 f"pip{sys.version_info.major}", ^ SyntaxError: invalid syntax python pip3 error solution


    Is python3-pip pip3 not working anymore?


    Traceback (most recent call last):
      File "/usr/bin/pip3", line 11, in <module>
        sys.exit(main())
      File "/usr/local/lib/python3.5/dist-packages/pip/__init__.py", line 11, in main
        from pip._internal.utils.entrypoints import _wrapper
      File "/usr/local/lib/python3.5/dist-packages/pip/_internal/utils/entrypoints.py", line 12
        f"pip{sys.version_info.major}",
                                     ^
    SyntaxError: invalid syntax

    Sometimes this is caused by a mismatch in versions, perhaps your python3-pip came from a different PPA/source so it no longer matches your installed version.

    Make sure that all tools come from the same source or if you need a new python version, that the entirety including all helper tools are compiled from the same source.


  • Linux custom kernel is huge solution


    You may have been expecting a normal sized kernel but if you don't disable these .config options you may have a kernel that is several gigabytes.

    CONFIG_SLUB_DEBUG=no

    CONFIG_DEBUG_INFO=no

    CONFIG_DEBUG_MISC=no

    Rebuild and you should find that the kernel is the normal and as expected size.


  • TSC_DEADLINE disabled due to Errata; please update microcode to version: 0x3a (or later) - Linux how to upgrade CPU microcode


    [    0.206301] [Firmware Bug]: TSC_DEADLINE disabled due to Errata; please update microcode to version: 0x3a (or later)
    [    0.430409] MDS: Vulnerable: Clear CPU buffers attempted, no microcode
    [    0.430411] MMIO Stale Data: Vulnerable: Clear CPU buffers attempted, no microcode
    [    2.980359] microcode: sig=0x306f2, pf=0x1, revision=0x36
    [    2.981621] microcode: Microcode Update Driver: v2.2.


     

    If you get an error like this just install the microcode package for your architecture:

    For Intel CPUs do this:
    apt install intel-microcode

    For AMD CPUs do this:

    apt install amd64-microcode


  • REFUSED unexpected RCODE resolving bind/named error


    Are you getting this error when trying to connect to a site/domain/service and then you checked your router/nameserver's logs to see what's wrong?

    You may see something like this:

    named[3025898]: REFUSED unexpected RCODE resolving

    This is not usually an error with named or bind, at least not on your end but NORMALLY this is an issue with the remote nameserver.

    A lot of times this is a misconfigured remote nameserver.  A classic case may be that the remote nameserver is up but the zonefile is non-existent or misconfigured or even hacked.

    You should contact the domain admin e-mail of the remote side to see what is happening.


  • How To Stop DNSMasq from listening on all IPs/Interfaces and allow only localhost


    Some people find it less than intuitive to do on DNSMasq and by default DNSMasq is available on 0.0.0.0 which could even be your LAN or Public IP.

    Active Internet connections (servers and established)
    Proto Recv-Q Send-Q Local Address           Foreign Address         State       PID/Program name    
    tcp        0      0 0.0.0.0:53              0.0.0.0:*               LISTEN      2139/dnsmasq   

    How do we fix it so DNSMasq listens on localhost only?

    The default that most will do is edit /etc/dnsmasq.conf and then set this

    listen-address=127.0.0.1

    But all that is needed is actuallly the "bind-interfaces" option and in fact if you don't have that option, it will still listen on 0.0.0.0 which may not be what you want.

    Note that even interface= will not help, especially if you don't have the bind-interfaces option as we show below.

    So just add this to /etc/dnsmasq.conf

    bind-interfaces

    Then restart dnsmasq and check:

    ctive Internet connections (servers and established)
    Proto Recv-Q Send-Q Local Address           Foreign Address         State       PID/Program name    
    tcp        0      0 127.0.0.1:53            0.0.0.0:*               LISTEN      2230/dnsmasq        


  • du - VAS Billing Subscriptions Hack/Scam MLPremiumSub Invascom Astromart Issues Complaint


    If you have du, you may want to check your bill, as you can read about a longstanding issue with fraudulent charges showing up and many users claiming they did not subscribe or solicit those offers. 

    These don't normally show up on new accounts, but they seem to target established users and maybe even users they suspect are not watching their phone or bills, while they are on vacation.

    These charges can frighteningly happen with 0 interaction from the user despite what du will say.

    https://www.reddit.com/r/dubai/comments/6o7y0t/hey_du_read_this/

    https://www.reddit.com/r/dubai/comments/w57njs/du_subscribed_me_to_3rd_party_subscriptions/

     

    Have you noticed strange charges to your bill even though you didn't have your phone on at the time of the supposed charges and subscriptions?

     

     

    To du's credit, they normally reverse the charges if you complain, especially if you offer proof that you didn't click any links or send an SMS to authorize the billing.

     

    Login to du and then check your plan and "VAS" and make sure you are not subscribed to any services that you didn't authorize:

     

    check du for fraudulent VAS subscriptions

     

    Be warned that even though VAS may show no subscriptions, you can and will still be impossibly charged for subscriptions that you haven't subscribed to.

     

    Conclusion

    Be vigilant, even if du tells you that everything has been canceled and refunded, I have found that this is normally NOT the case and will require followups, so be sure to take screenshots and then complain to the TDRA.


  • Docker Swarm vs Kubernetes Comparison Guide


    Kubernetes vs Docker Swarm Comparison

     

    A lot of companies are unsure which solution to choose and many may not be aware of Docker Swarm as an alternative to Kubernetes.  One thing that many Sysadmins find is that Docker Swarm is simply easier, quicker to setup and maintain by far than Kubernetes. 

    See for yourself with this Docker Tutorial which includes Docker Swarm.

    See the difference with one of our favorite and most efficient Kubernetes implementations.

    One striking feature is that if we compare deploying the same container by setting up a 3 node Docker Swarm or Kubernetes, it is MUCH quicker to get the same application going in Kubernetes.

    Administration and Expertise

    • Docker Swarm: Given its simplicity and integration with Docker, the administration overhead for Docker Swarm is significantly lower than Kubernetes. It requires less specialized knowledge, making it easier for teams already familiar with Docker to manage a Swarm environment. This translates into lower costs related to training and hiring specialized personnel. Smaller teams can effectively manage Swarm clusters without the need for dedicated DevOps roles focused solely on cluster management.

    • Kubernetes: Kubernetes' complexity and rich feature set necessitate a higher level of expertise and more administration time. Managing a Kubernetes cluster involves understanding various components like pods, services, deployments, and more, which has a steeper learning curve. Organizations often need to invest in specialized training for their teams or hire experienced Kubernetes administrators. This can significantly increase the manpower cost. Additionally, the ongoing management and optimization of Kubernetes clusters require more dedicated resources, potentially leading to higher costs in terms of both manpower and administration time.

    Operational Costs

    • Docker Swarm: The operational costs of running Docker Swarm are generally lower, not just in terms of the computing resources required but also considering the manpower needed for its administration. Its lightweight nature means that it can run on less powerful hardware or cloud instances, further reducing costs.

    • Kubernetes: Kubernetes can be more resource-intensive, requiring more robust hardware or higher-tier cloud services to accommodate its operational demands. Additionally, the cost of employing skilled Kubernetes operators or DevOps engineers can be substantial. While Kubernetes can optimize resource utilization and cost through features like auto-scaling, the initial setup, ongoing management, and optimization require continuous effort and expertise.

    Total Cost of Ownership (TCO)

    The Total Cost of Ownership for Kubernetes vs. Docker Swarm extends beyond just the immediate resource and manpower costs. It includes training, the complexity of operations, the scale of deployment, and the potential need for additional tools or services to manage and monitor the environment.

    • Docker Swarm: Offers a lower TCO for smaller to medium-sized deployments or for teams with limited DevOps resources. Its ease of use and lower resource requirements make it a cost-effective solution for many scenarios, especially when operational simplicity and lower manpower costs are prioritized.

    • Kubernetes: While the TCO can be higher, especially with larger deployments requiring skilled personnel, Kubernetes' scalability and efficiency can, in the long run, offer cost savings for complex, large-scale applications and environments that benefit from its advanced features. The investment in Kubernetes can lead to better resource utilization, higher availability, and more dynamic scaling, potentially offsetting the higher initial costs over time.

     

    Ease of Setup and Use

    • Docker Swarm: It is significantly easier to set up and configure Docker Swarm compared to Kubernetes. This is because Docker Swarm is tightly integrated into the Docker ecosystem. Setting up a Swarm cluster can be as simple as initiating a few Docker commands. This simplicity extends to its management and operation, making it more accessible for beginners or teams with smaller-scale deployments.

    • Kubernetes: Setting up a Kubernetes cluster is more complex and involves a steeper learning curve. Kubernetes offers more features and flexibility, which comes at the cost of increased complexity in setup and management. However, tools like Minikube or managed Kubernetes services (e.g., EKS, AKS, GKE) can help alleviate some of the setup difficulties.

    Scalability

    • Docker Swarm: Offers fast and straightforward scalability. Swarm is designed to be efficient in scaling up and down in response to demand. However, it might not handle extremely large clusters as efficiently as Kubernetes.

    • Kubernetes: Known for its robust scalability features. It can manage much larger clusters efficiently and provides more options for high availability and load balancing. Kubernetes is the go-to for enterprises needing to scale their applications massively.

    Features and Flexibility

    • Docker Swarm: Provides a simpler model for deploying applications, with a focus on ease of use and integration with Docker containers. It lacks some of the advanced features found in Kubernetes but covers the basic needs of container orchestration well.

    • Kubernetes: Offers a rich set of features including but not limited to auto-scaling, self-healing, service discovery, and load balancing. Its extensibility and flexibility make it suitable for complex applications and workflows.

    Resource Requirements

    • Docker Swarm: Requires fewer resources compared to Kubernetes, making it a more economical option for smaller operations or where resources are limited. Its lightweight nature means it can run effectively on smaller setups.

    • Kubernetes: Due to its extensive feature set and the complexity of managing large clusters, Kubernetes generally requires more resources (CPU, memory) to run effectively. This can be a consideration for organizations with limited resources.

    Community and Ecosystem

    • Docker Swarm: While Docker Swarm enjoys support from the Docker community, its ecosystem is not as vast or active as Kubernetes'. This can affect the availability of third-party tools and integrations.

    • Kubernetes: Boasts a large and active community. The ecosystem around Kubernetes is rich with third-party tools, services, and integrations, making it easier to find support and resources for extending Kubernetes capabilities.

    Use Cases

    • Docker Swarm: Ideal for small to medium-sized deployments, startups, or for those who prefer simplicity and are already invested in the Docker ecosystem. It's also well-suited for applications that do not require the complex orchestration features offered by Kubernetes.

    • Kubernetes: Suited for larger, more complex applications and enterprises requiring high scalability, extensive automation, and advanced deployment strategies. It's the choice for multi-cloud and hybrid-cloud environments due to its flexibility and wide industry support.

    Disaster Recovery Implications

    1. Faster Initial Recovery: Given that Docker Swarm allows for quicker deployment, in the event of a disaster, restoring services to operational status can be achieved more rapidly. This speed is beneficial for minimizing downtime and reducing the impact on business operations.

    2. Ease of Management: Docker Swarm's simplicity also means it's easier to manage in stressful situations, such as during disaster recovery. Fewer complexities reduce the risk of errors during the recovery process, making it more straightforward to execute recovery plans.

    3. Scalability Concerns: While Docker Swarm offers speed and simplicity, it's important to note that Kubernetes provides more advanced features for handling large-scale, complex applications. In disaster recovery, this might mean Kubernetes can offer better long-term scalability and resilience options, despite its slower initial setup time. However, for many applications, Docker Swarm's capabilities are more than adequate, especially when rapid recovery is a priority.

    4. Automation and Orchestration: Kubernetes excels in automation and orchestration, which can be advantageous in automatically managing application deployment and recovery across a large number of nodes. Docker Swarm, while simpler, may require more manual intervention in complex scenarios. However, for many scenarios, the speed and ease of use of Docker Swarm can outweigh these benefits, especially in environments where the application architecture aligns well with Swarm's model.

     

    Can Docker Swarm Be Used at Scale?

    Large Deployments Using Docker Swarm

    Companies have chosen Docker Swarm for its lightweight nature and ease of use, especially when their infrastructure does not demand the extensive scalability and complex orchestration features provided by Kubernetes. Companies in sectors like technology, finance, and e-commerce have utilized Docker Swarm for hosting web applications, microservices, and internal tools, appreciating its straightforward scaling and deployment mechanisms.

    Limitations and Scalability

     

     

    Conclusion

    Choosing between Docker Swarm and Kubernetes depends on your project's size, complexity, and specific requirements. Docker Swarm is a great choice for those valuing simplicity, ease of setup, and lower resource requirements. Kubernetes, on the other hand, is suited for those needing a highly scalable, feature-rich platform capable of managing complex applications and workflows. Each tool has its strengths, and the decision should align with your technical needs, team's expertise, and long-term strategy.  The easiest answer to the question is that if you don't need the extra features that Kubernetes provides, then you cannot go wrong with Docker Swarm.


  • When is it time to leave your VPS/VDS Cloud Hosting Provider?


    When Is It Time to Leave Your VPS, VDS, and Dedicated Server Provider?

    Choosing the right hosting solution—be it Virtual Private Server (VPS), Virtual Dedicated Server (VDS), or dedicated server—is pivotal for the performance, security, and reliability of your online presence. However, the landscape of hosting providers is ever-changing, especially with frequent acquisitions and shifts in service quality. Recognizing when it's time to transition to a new provider can safeguard your digital assets and ensure your hosting aligns with your needs. Here’s an updated guide on identifying the signs that it might be time to reconsider your VPS, VDS, or dedicated server hosting provider.

    Considerations for Switching Providers

    Environmental Vulnerability and Infrastructure Resilience

    Recurring Climate-Related Issues

    • Signs: If your provider’s data center is frequently affected by climate-related disasters (e.g., flooding, hurricanes) and fails to maintain operational continuity, it's a clear sign of inadequate disaster preparedness.
    • Impact: Such recurring issues can lead to significant downtime, data loss, or performance degradation, directly affecting your online business operations.

    Power Stability Concerns

    • Signs: Frequent power outages or failures that result in downtime indicate a lack of robust power backup solutions (UPS systems, generators) essential for any data center.
    • Impact: Power stability is critical for uninterrupted server operation. Frequent outages suggest a vulnerability in the provider's infrastructure, risking your data and service availability.

    Network Performance Issues

    Consistent Bandwidth Problems

    • Signs: If you're experiencing persistent slow bandwidth or network congestion, it could indicate that the provider is overselling their resources without adequately investing in network capacity.
    • Impact: Bandwidth and network performance directly affect your website’s load times and the overall user experience, which can influence customer satisfaction and SEO rankings.

    Ethical and Security Concerns

    Involvement in Scandals or Unethical Practices

    • Signs: Discovering that your hosting provider is involved in scandals, such as unauthorized tapping of client communications or other unethical data practices, is a serious red flag.
    • Impact: Beyond the immediate security implications, association with a provider embroiled in unethical practices can damage your business’s reputation and trustworthiness.

     

    Understanding the Impact of Acquisitions

    Shift in Service and Expertise

    The acquisition of your hosting provider by a larger company often heralds significant changes. The intimate understanding and specialized support you’ve come to expect can dilute as the core staff transitions out, replaced by a team with potentially different priorities and expertise. For specialized hosting solutions like VPS, VDS, or dedicated servers, this can mean a drop in the technical support quality and responsiveness you rely on.

    Decreased Personalization and Increased Standardization

    Post-acquisition, the personalized approach that smaller providers offer might give way to a one-size-fits-all service model. This change can be particularly challenging for VPS, VDS, and dedicated server clients who require tailored configurations and hands-on support to optimize their server performance and security.

    Signs It’s Time to Switch Providers

    1. Deterioration in Support Quality

    When the quality of support declines, with slower response times or less knowledgeable assistance, it’s a clear indication that the provider’s service level is no longer up to par. For complex hosting setups, effective and timely support is crucial.

    2. Increased Technical Problems

    An uptick in technical issues, such as server downtime, performance inconsistencies, or security vulnerabilities, suggests that the provider’s infrastructure and service quality are waning. VPS, VDS, and dedicated server clients need reliable performance and robust security measures, given the critical nature of the hosted applications and data.

    3. Changes in Service Terms or Pricing

    Unanticipated changes in billing, service terms, or sudden price hikes without corresponding improvements in service can indicate that it’s time to reassess your hosting arrangements. For businesses relying on VPS, VDS, or dedicated servers, stability in service terms and predictable pricing are essential for long-term planning.

    4. Lack of Customization or Flexibility

    If your provider becomes less willing or able to accommodate custom configurations or specific requirements, it’s a sign that their new business model may not align with your needs. VPS, VDS, and dedicated server hosting often require flexibility to optimize server setups based on unique performance, security, and software requirements.

    Making the Switch Thoughtfully

    Guide on picking a new VPS/VDS/Cloud Server Provider.

    Transitioning to a new VPS, VDS, or dedicated server provider requires careful planning to minimize downtime and data loss. Here are steps to ensure a smooth migration:

    • Research and Select Carefully: Evaluate potential providers based on their reputation for handling VPS, VDS, and dedicated server solutions, focusing on technical support, security, and customization options.
    • Plan the Migration: Develop a detailed migration plan that considers data backup, application dependencies, and timing to reduce impact on operations.
    • Communicate with Stakeholders: Keep your team and users informed about the migration timeline and what to expect during the transition.

    Navigating the decision to leave your current hosting provider is complex, especially when dealing with specialized solutions like VPS, VDS, or dedicated servers. By staying attuned to changes in service quality, support, and flexibility, you can make informed decisions that align with your technical requirements and business goals, ensuring your digital infrastructure remains robust and responsive to your needs.


  • 2024 Buyer's Guide: How to Choose and Buy the Best VPS/VDS for Your Needs - Tips and Strategies


    rtt Ultimate Cloud VPS Buyer's Guide for 2024

    In today’s digital landscape, finding a reliable and secure Virtual Private Server (VPS) or Virtual Dedicated Server (VDS) goes beyond just comparing specs and prices. With increasing concerns over data privacy, security breaches, and government surveillance, the wisdom of choosing your VPS/VDS provider based on jurisdiction, security features, and operational transparency has never been more critical.

    Our guide on when to switch to a different provider is here.

    Why is our VPS guide different?

    Many of the blogs and guides out there are not made by professionals with decades of experience, and in fact, are often created by full time digital marketing gurus and firms.

    realtechtalk.com is a source of technical information and solutions, many of the other guides out there and comparisons are created by "Tech blogs" that don't actually run mission critical operations or real world problems and solutions.

    The sheer amount of available guides can be overwhelming. However, it's crucial to approach these resources with a discerning eye, especially considering that many guides are driven by underlying motives such as affiliate marketing, prioritizing recommendations that may not align with your best interests. Our guide stands apart in this cluttered space, and here's why it's an invaluable resource for businesses prioritizing security and reliability.

    Assessing Technical Depth and Utility

    1. Detailed How-To Guides and Tutorials: Genuine technical blogs often provide comprehensive how-to guides, tutorials, and step-by-step instructions that help readers solve specific problems or achieve tasks. The presence of detailed, actionable content can indicate a blog's commitment to offering real value to its audience.

    2. Problem-Solving Content: Authentic tech blogs usually address common and niche technical issues, offering solutions based on experience and expertise. They might discuss troubleshooting steps, optimization tips, and best practices for using VPS and cloud services effectively.

    3. Technical Discussion Depth: Blogs that delve into the technical nuances, underlying principles, and architectural considerations of VPS and cloud solutions demonstrate a deeper understanding of the subject matter. A focus on surface-level features or benefits without discussing the technical how and why may suggest a lack of genuine expertise.

     

    Unbiased and Comprehensive Analysis

    1. No Affiliate Links: Unlike many guides that rely on affiliate marketing for revenue, our recommendations are untainted by financial incentives. This means we have no hidden agenda; our sole focus is to provide you with the best options based on merit, not commission rates.

    2. Security-Centric Recommendations: We understand that for businesses, security isn't just another checkbox—it's a foundation. Our guide is crafted with a deep understanding of cybersecurity threats and countermeasures, ensuring that our recommendations prioritize the safety of your data above all else.

    3. Reliability as a Priority: In the digital age, downtime is synonymous with lost revenue and damaged reputation. We highlight solutions known for their uptime, robust infrastructure, and excellent customer support, ensuring your operations run smoothly around the clock.

    Prioritize Long-Standing Providers

    • Established Track Record: Opt for a provider that has been in business for a significant period. Longevity in the hosting industry often indicates a consistent track record of reliability and customer satisfaction. Companies that have weathered the ups and downs of the market are more likely to understand the nuances of maintaining high uptime, offering scalable solutions, and providing responsive customer support.

    Assess Ownership and Management Experience

    • Reputable Ownership: Consider providers that are either independently reputable or are part of a well-regarded parent company known for its stability and financial health. The backing of a reputable company often means access to better resources, infrastructure, and a more significant safety net in terms of business continuity and disaster recovery capabilities.

    • Experienced Management: Look into the experience and background of the management team. Providers led by individuals with a proven track record in the IT, datacenter, or networking industries can offer more reliable and innovative services. Experienced leadership is adept at navigating technical challenges and market fluctuations, ensuring the provider remains on solid footing.

    Verify the Provider's Financial Health

    • Stable Financial Background: A financially stable provider is less likely to experience service disruptions due to budget constraints or go out of business suddenly, jeopardizing your data and online presence. While financial details may not always be publicly available, signs of stability include consistent service improvements, infrastructure investments, and positive customer testimonials over the years.

    Look for Consistent Innovation and Improvement

    • Ongoing Investment in Technology: A provider that continually invests in its infrastructure, software, and services is likely in a stable financial position and committed to offering the best possible service. Regular updates to services, hardware, and security protocols indicate a provider's dedication to maintaining high performance and customer satisfaction.

     

    Choose Lesser-Known, Specialized Providers

    • Avoid Household Names: Opt for providers that may not be household names but have a solid reputation in specialized forums and industry circles. These companies are less likely to be the target of mass-scale cyber attacks and may offer more personalized service, which can be a boon for SMEs requiring attentive support.

    Evaluate the Provider's Infrastructure and Expertise

    • Assess Scale and Reliability: While large providers may offer attractive pricing due to their scale, their service can sometimes be impersonal, and they may experience significant outages. A smaller, more specialized provider could offer more reliable uptime and personalized attention, critical for businesses where every minute of downtime counts.

    • Verify In-House Expertise: Ensure the provider has in-house experts in datacenter management, servers, and networking. Providers that openly share information about their team's expertise and infrastructure are generally more trustworthy and capable of delivering higher service quality. Those that don't may lack direct control over their services, potentially compromising reliability and performance.

    Look for Comprehensive Services and Support

    • Full-Scale System and Network Support: Choose a provider that offers a range of support and consulting services, from system administration to network security. This indicates a higher level of expertise and a commitment to supporting your business's specific needs. Providers that control their own hardware and network infrastructure are preferable, as they can offer more customized solutions and faster response times.

    Importance of Control and Transparency

    • Control Over Hardware and Network: A provider that owns and controls its hardware and network infrastructure can offer better security, performance, and reliability. This control also means they can be more responsive to issues and offer more customized solutions, essential for businesses with specific or changing needs.

     

    Why Security and Jurisdiction Matter

    Recent years have shown that even the most reputable providers are not immune to outages, security breaches, and other vulnerabilities. High-profile incidents involving major companies like Amazon, Vultr, and DigitalOcean have highlighted the risks of hosting with providers that become prime targets for cyberattacks. The allure of free or cheap services often comes with a hidden cost: your data’s security and privacy. Many of these low-cost providers have been identified as sources of hacking traffic, making them not just insecure but complicit in the broader ecosystem of cyber threats.

    Moreover, the revelations from Edward Snowden about NSA surveillance activities have cast a long shadow over providers in PRISM countries. Providers under the jurisdiction of these nations are subject to laws that compel them to hand over user data to government agencies, often without the user's knowledge or consent. This reality poses a significant risk for businesses and individuals concerned about the confidentiality of their communications and the integrity of their data.

    Signs of Expertise, Does Your Provider Offer Dedicated Servers, Fiber and IP Space?

    Comprehensive Infrastructure Solutions

    • Private Server Capabilities: Look for providers that offer the option to transition from VPS to dedicated or even private server environments. This capability is crucial for businesses with growing or fluctuating demands, ensuring that they can scale their resources up or down as needed without compromising performance or security.

    Dedicated Network Options

    • Custom Network Solutions: Providers that can offer dedicated network solutions, including private VLANs or MPLS, indicate a high level of network management expertise. This is essential for businesses that prioritize data security and require isolated networking environments to protect sensitive information.

    Private Fiber Optic Connections

    • Direct Fiber Access: A provider capable of offering direct fiber optic connections for your business' exclusive use, demonstrates a significant investment in infrastructure. This level of service ensures the highest possible speed and reliability, and security, crucial for businesses that rely on real-time data access and high-bandwidth applications.

    Dedicated IP Space

    • Allocated IP Ranges: Providers that can offer dedicated IP space give businesses the flexibility and control needed for various operations, including running their own web servers, email servers, and other services while ensuring improved security and reputation management.

    Expertise and Customization

    • Security and Scalability: The ability to provide these high-level services is a testament to a provider's expertise in secure and scalable IT services. It indicates a depth of knowledge not only in hardware and infrastructure but also in understanding the unique needs of businesses that require these advanced services.

     

    Avoid Free Trials and Money Back Guarantee VPS/VDS/Cloud Offers

    In addition to the concerns surrounding large VPS providers, it's also wise to exercise caution with providers that offer free trials or 30-day money-back guarantees. While these offers are attractive for legitimate users testing the services before committing financially, they present vulnerabilities that can be exploited by malicious actors. Below, we explore why such promotional offers can exacerbate the risks of shared hosting environments.

    Increased Susceptibility to Abuse by Hackers

    1. Low Barriers to Entry: Free trials and money-back guarantees lower the barriers to entry, making it easier for hackers to sign up for services with minimal upfront investment. This accessibility allows malicious users to exploit these platforms for launching attacks, hosting malicious content, or conducting other nefarious activities without significant financial risk.

    2. Temporary Nature of Services: The temporary nature of free or trial accounts makes them particularly appealing to hackers. Malicious actors can use these services to perform their activities and then abandon the account before any serious action can be taken against them. This transient usage pattern complicates efforts to track and mitigate abusive behavior.

    3. Reputation Damage and Blacklisting: As hackers frequently utilize these trial accounts, the IP ranges and resources allocated to these promotional offers can become associated with malicious activities. This association can lead to IPs being blacklisted, affecting not only the hackers but also legitimate users who are later assigned those IPs or subnets. The consequences can include email delivery issues, decreased network reputation, and potential blocking by security systems.

    4. Resource Strain and Security Risks: Providers offering extensive free trials or guarantees might attract a disproportionate number of abusers, straining resources and potentially compromising the security of the network. This strain can impact service quality for legitimate users and increase the provider's susceptibility to breaches if resources are diverted to manage abuse instead of enhancing security measures.

    Mitigation Strategies for Users

    To mitigate these risks, users should consider providers that have robust verification processes for new accounts, even if they offer trials or money-back guarantees. Additionally, researching a provider's reputation, security practices, and how they handle abuse can provide insights into their suitability. Opting for providers that balance promotional offers with strict anti-abuse measures can help minimize the risk of being inadvertently associated with malicious activities.

     

    Avoid Large Providers

    The choice of a Virtual Private Server (VPS) provider is crucial for businesses and individuals who prioritize privacy, security, and reliability in their online operations. Opting for large VPS providers, while seemingly advantageous due to their established reputations and extensive resources, comes with a set of risks that warrant careful consideration. Below are key reasons why one might avoid large VPS providers, focusing on concerns related to mass surveillance, government interest, hacker targeting, and the implications of sharing IP space with malicious actors.

    Increased Risk of Mass Surveillance and Government Interest

    1. Scale and Visibility: Large VPS providers, due to their size and the volume of data they handle, are more likely to be under surveillance by governments and intelligence agencies. The extensive customer base and significant amount of traffic make these providers prime targets for mass data collection efforts.

    2. Legal and Regulatory Compliance: Big providers are often subject to stringent legal and regulatory requirements, which may compel them to comply with government requests for data access. In jurisdictions with laws that infringe on privacy rights, this compliance can lead to the monitoring of user activities without explicit consent or knowledge.

    3. Data Center Locations: The global presence of large providers means that some of their data centers may be located in countries with aggressive surveillance laws. This geographic diversity, while beneficial for performance and redundancy, can expose users to varied legal regimes, some of which may be more intrusive.

    Vulnerability to Hacking and Malicious Activities

    1. Attractive Targets for Hackers: The prominence and scale of large VPS providers make them attractive targets for cybercriminals and hackers. Breaching the defenses of a major provider can grant attackers access to a vast amount of resources and data, offering a high return on their efforts.

    2. Shared IP Space Concerns: When you use a large VPS provider, you share IP space with numerous other customers, including potentially malicious users. This shared environment can lead to your IP addresses being blacklisted or marked on Real-time Blackhole Lists (RBLs) due to the activities of other users, affecting your email deliverability and reputation.

    3. Proximity to Malicious Actors: Sharing network infrastructure with hackers increases the risk of collateral damage from targeted attacks against other users on the same network. Moreover, if hackers manage to exploit vulnerabilities within the provider's network, there's a theoretical risk they could gain unauthorized access to your resources, especially if network segmentation or isolation measures are inadequate.

     

    The Jurisdictional Mistake

    One location that works well for many companies is Hong Kong VPS/Cloud as it is safe and secure from data seizure and has excellent infrastructure and connectivity to Asia and the world as we argue here.

    A critical oversight some companies make when selecting a hosting location for their data is failing to consider the jurisdictional implications tied to their service provider's legal domicile, especially in the context of privacy and data protection. For example, a company might choose Hong Kong for its data hosting due to its perceived strong privacy laws and distance from Western legal jurisdictions. However, if the chosen hosting provider is registered in a PRISM-affiliated country, such as the United States or the United Kingdom, the benefits of hosting in a "safer" jurisdiction may be nullified.

    Understanding PRISM and Jurisdictional Reach

    PRISM is a surveillance program under the United States National Security Agency (NSA) that collects internet communications from various U.S. internet companies. Companies that are based in or have substantial ties to PRISM-affiliated countries (primarily the US and UK) are subject to the laws and regulations of those countries, including laws that compel the disclosure of data to government authorities.

     

    1. Misplaced Trust in Geographic Safety: Companies may mistakenly believe that by hosting data in jurisdictions perceived as safe or privacy-friendly, such as Hong Kong, they can protect their data from foreign surveillance and intervention. This overlooks the fact that the legal entity controlling the data—i.e., the hosting provider—is subject to the laws of its home country.

    2. Compulsion Under Home Country Laws: If the hosting provider is a company registered in a PRISM country, it can be compelled by its government to provide access to data, regardless of where that data is physically stored. This means that data hosted in Hong Kong by a U.S. or UK company can be accessed under U.S. or UK law, effectively bypassing the local privacy protections of the hosting location.

    3. Legal and Compliance Conflicts: Hosting with a provider subject to foreign surveillance laws can create conflicts between the need to comply with those laws and the hosting company's obligations under local privacy regulations. This can lead to complex legal situations where companies find themselves caught between conflicting legal demands.

    Strategies for Mitigating Risk

    To mitigate these risks, companies should consider the following strategies when selecting a data hosting location and provider:

    1. Evaluate the Provider's Jurisdiction: Choose a hosting provider whose jurisdiction aligns with your privacy and data protection goals. Consider providers based in countries with strong privacy laws and minimal exposure to foreign surveillance laws.

    2. Understand Data Protection Laws: Be aware of the data protection laws in both the hosting location and the provider's home country. This understanding can help assess the risk of government intervention.

    3. Seek Legal Advice: Consult with legal experts who specialize in international data protection law to navigate the complex landscape of jurisdiction, privacy, and data security.

    4. Consider Data Encryption: Encrypt data at rest and in transit to add a layer of protection against unauthorized access, regardless of the legal jurisdiction.

    By carefully selecting a hosting provider and location with a thorough understanding of jurisdictional impacts, companies can better protect their data from unwanted surveillance and ensure compliance with their data protection standards.

    Choosing a VPS/VDS Provider: Features to Look For

    When searching for a VPS/VDS provider, prioritize those registered and operating outside of PRISM countries. Look for jurisdictions with strong data protection laws and a history of resisting extraterritorial demands for user data.

    Security Features

    • Data Encryption: Ensure that the provider offers robust encryption for data at rest and in transit.
    • DDoS Protection: Look for built-in protection against Distributed Denial of Service (DDoS) attacks.
    • Regular Security Audits: Choose providers that conduct regular security audits and make those reports available to their customers.
    • Access Controls: Comprehensive access control options, including two-factor authentication (2FA) and role-based access, are essential.

    Jurisdictional Considerations

    • Non-PRISM Countries: Opt for providers based in countries not part of the PRISM surveillance program, enhancing privacy protection.
    • Data Sovereignty: Understand where your data is physically stored and the legal implications of that jurisdiction.

    Things to Avoid

    • Free or Extremely Cheap Offers: These can be indicative of compromised security measures and a lack of investment in infrastructure.
    • Providers with a History of Outages and Breaches: Research your provider's track record for reliability and security incidents.
    • PRISM owned providers: Avoid providers that are incorporated and registered in PRISM based countries.

     

    Billing Considerations

    When comparing the cost implications of using usage-based services like Amazon Web Services (AWS) to flat-rate VPS hosting options, it's important to consider how these billing models can impact your budget and operational costs.

    AWS operates on a usage-based pricing model, offering flexibility and scalability but potentially leading to unpredictable and higher costs depending on usage patterns. This model can be beneficial for businesses with fluctuating needs, allowing them to scale resources up or down based on demand. However, for users with stable or predictable resource requirements, this flexibility comes at the cost of complexity in budgeting due to potential overages and the intricate pricing structures associated with different services and resources within AWS.

    In contrast, flat-rate VPS hosting services offer a predictable monthly fee, simplifying budget management and financial planning. These services typically provide a fixed amount of resources (CPU, RAM, storage, bandwidth) for a set price, making it easier for users to predict their hosting expenses without worrying about variable costs based on resource consumption. This pricing model is particularly appealing for small to medium-sized projects, personal websites, or businesses with consistent resource needs, where budget predictability is a priority.

    The choice between usage-based and flat-rate billing models should be based on your specific hosting needs, resource usage patterns, and budgetary constraints. For projects with dynamic resource demands, a usage-based model like AWS might offer the necessary flexibility, albeit with more complex budgeting requirements. For those with more predictable resource needs, a flat-rate VPS hosting service could provide cost savings and simpler financial planning.

     

    Pay-As-You-Go

    The "pay-as-you-go" billing model, while offering flexibility and scalability, carries inherent risks that can lead to unexpectedly high charges, particularly in scenarios of hacking, abuse, or misconfiguration.

    Hacking and Security Breaches

    In a pay-as-you-go model, if an account is compromised, hackers can quickly spin up resources for their own purposes, such as cryptocurrency mining or launching attacks, leading to significant financial liabilities for the account owner. Since billing is based on usage, the costs can escalate rapidly without immediate detection of the unauthorized activity.

    Abuse and Misconfiguration

    Similarly, abuse or misconfiguration can lead to spiraling costs. For instance, leaving unused resources running, improperly configured services, or deploying resources more extensive than necessary can all contribute to higher than anticipated charges. An application or service experiencing a sudden increase in usage, whether through legitimate traffic spikes or DDoS attacks, can also result in significant expenses.

    Comparing with Flat-Rate Billing

    On the other hand, flat-rate VPS hosting offers a predictable monthly or annual fee, providing a capped cost that can safeguard against the unpredictable expenses associated with the pay-as-you-go model. This predictability is particularly valuable for small to medium-sized projects or businesses with fixed budgets. However, it's important to note that while flat-rate plans offer cost predictability, they may lack the flexibility to scale resources dynamically in response to changing needs.

    Mitigation Strategies

    To mitigate the risks associated with the pay-as-you-go model:

    • Monitoring and Alerts: Utilize cloud service monitoring tools to track resource usage and set up alerts for unusual activity.
    • Security Best Practices: Implement robust security measures, including multi-factor authentication, regular audits, and strict access controls.
    • Budget Management Tools: Use budget management features offered by cloud providers to set spending limits and avoid unexpected charges.

     

    Examples of Providers Tapping Their Clients

    The owner of a popular chat service found that their large providers Hetzner and Linode tapped their servers which was documented on Reddit and by other security researchers.

    In this case there was no evidence of the servers being hacked, but a device that acted as a man in the middle was placed in order to decrypt the encrypted traffic in and out of the server.  This was done to servers at 2 different locations in Germany and by two different providers (Linode and Hetzner).

    By choosing large providers and choosing countries that co-operate with the US based PRISM program in the EU and most parts of the world, you are putting your data and security at risk.

    https://therecord.media/jabber-ru-alleged-government-wiretap-expired-tls-certificate

    Note a similar occurrence happened in France as well:

    https://www.wired.com/story/encrochat-phone-police-hacking-encryption-drugs/

    In all cases the clients were not notified and it's unclear what, if any legal process was used and it also appears that providers simply comply with requests for data and access, even if it may be illegal or unwarranted.


  • Postfix / sendmail config for DKIM, SPF and DMARC Tutorial Guide E-mail Delivery for Hotmail.com Gmail.com and More HowTo


    This will be the goto to help solve e-mail delivery issues and talk about many practical issues that happen between developers, admins and scripts that send e-mail and do things that may not be acceptable or cause deliverability problems.

    Sendmail Stuff

    Edit /etc/mail/sendmail.mc

    The problem is that if you send directly out from the server using the mail function, the Return-path of the e-mails will be username@thehostnameoftheserver.com.  Let's say the From Address is "hellothere@cooldomain.com", this is a problem becasue presumably you've signed the e-mail for "cooldomain.com" but some e-mail providers will also check the Return-path domain of "thehostnameoftheserver.com" and find it does not match and there is no signature for the hostname and this will cause e-mails to be rejected or sent to spam.

    So if your server's hostname is abc123.com, then the return path is the user@abc123.com, and this obviously breaks more strict DKIM checks because e-mail servers like gmail.com will also expect a DKIM signature for the hostname of the server.

    To make things worse, a lot of times the people/devs that generate these e-mails may not have access to the server or may not be allowed to change the hostname.

    Fix it Using Sendmail's MASQUERADE

    Below we can fix this by using MASUERADE_AS with realtechtalk.com, this will be the domain set in the Return-path and the MASQUERADE_DOMAIN is abc123.com, you can add more lines with extra domains you want to rewrite.

    dnl MASQUERADE_AS(`realtechtalk.com')dnl
    dnl FEATURE(masquerade_entire_domain)dnl
    dnl MASQUERADE_DOMAIN(abc123)dnl

     

    To apply the changes update sendmail.cf like this:

    We have to generate the new config file

    m4 sendmail.mc

    Restart the sendmail service.

    systemctl restart sendmail

    OpenDKIM Settings

    Be sure to set this option for /etc/opendkim.conf as this will sign for multiple domains/hosts in the e-mail:

    MultipleSignatures Yes

    Eg. if your return-path is abc123.com and your from address is hello.com, both need to be signed or they will fail DMARC and possibly be blocked or sent to spam.  This also assumes that you should correctly have the keys and configuration to sign all domains that may be a part of the e-mail (eg. our example should mean that you have keys for abc123.com and hello.com on your server that sends out). 

     


  • Install Grafana on Linux Debian Ubuntu Tutorial Guide


    First we need a few extra packages:

    apt update

    apt install -y adduser libfontconfig1 musl sudo
    wget https://dl.grafana.com/enterprise/release/grafana-enterprise_10.3.1_amd64.deb

    Install / Enable Grafana

    dpkg -i grafana-enterprise_10.3.1_amd64.deb

    dpkg -i grafana-enterprise_10.3.1_amd64.deb
    (Reading database ... 44309 files and directories currently installed.)
    Preparing to unpack grafana-enterprise_10.3.1_amd64.deb ...
    Unpacking grafana-enterprise (10.3.1) over (10.3.1) ...
    Setting up grafana-enterprise (10.3.1) ...
    Restarting grafana-server service... OK
    root@Grafana-realtechtalk:~# apt purge grafana-enterprise
    Reading package lists... Done
    Building dependency tree... Done
    Reading state information... Done
    The following packages will be REMOVED:
      grafana-enterprise*
    0 upgraded, 0 newly installed, 1 to remove and 94 not upgraded.
    After this operation, 408 MB disk space will be freed.
    Do you want to continue? [Y/n] y
    (Reading database ... 44309 files and directories currently installed.)
    Removing grafana-enterprise (10.3.1) ...
    Stopping and disabling grafana-server service...
    Synchronizing state of grafana-server.service with SysV service script with /lib/systemd/systemd-sysv-install.
    Executing: /lib/systemd/systemd-sysv-install disable grafana-server
    Removed /etc/systemd/system/multi-user.target.wants/grafana-server.service.
    (Reading database ... 34213 files and directories currently installed.)
    Purging configuration files for grafana-enterprise (10.3.1) ...
    dpkg: warning: while removing grafana-enterprise, directory '/etc/grafana' not empty so not removed
    dpkg: warning: while removing grafana-enterprise, directory '/usr/lib/systemd/system' not empty so not removed
    root@Grafana-realtechtalk:~# dpkg -i grafana-enterprise_10.3.1_amd64.deb
    Selecting previously unselected package grafana-enterprise.
    (Reading database ... 34208 files and directories currently installed.)
    Preparing to unpack grafana-enterprise_10.3.1_amd64.deb ...
    Unpacking grafana-enterprise (10.3.1) ...
    Setting up grafana-enterprise (10.3.1) ...
    ### NOT starting on installation, please execute the following statements to configure grafana to start automatically using systemd
     sudo /bin/systemctl daemon-reload
     sudo /bin/systemctl enable grafana-server
    ### You can start grafana-server by executing
     sudo /bin/systemctl start grafana-server

    Enable Grafana

    systemctl daemon-reload
    systemctl enable grafana-server


    ### You can start grafana-server by executing
     sudo /bin/systemctl start grafana-server
    Synchronizing state of grafana-server.service with SysV service script with /lib/systemd/systemd-sysv-install.
    Executing: /lib/systemd/systemd-sysv-install enable grafana-server

    Created symlink /etc/systemd/system/multi-user.target.wants/grafana-server.service → /lib/systemd/system/grafana-server.service.

     

    Start Grafana

    systemctl start grafana-server

    Access Grafana

    Browse to https://YourIP:3000 and login as admin/admin

    Update Your Password

    Welcome to the Grafana Dashboard!

    References

    https://grafana.com/grafana/download?pg=oss-graf&plcmt=hero-btn-1

     


  • How To Completely Disable ufw in Linux Ubuntu Mint Debian


    This is for the situation that you're doing other things that may conflict or have your own custom rules and ufw keeps overriding iptables.

    A lot of guides don't work, and even ufw reset does not work, because it still leaves the old ufw chains.

    Here is what works to disable ufw completely

    systemctl stop ufw

    systemctl disable ufw

    ufw disable

    rm -f /etc/ufw/*

    iptables -F

    Now run this script to finish the job

    This script will delete all of the old ufw chains.

    for chain in `iptables -L|grep ufw|awk '{print $2}'`; do
    iptables -X $chain
    done

    Do this in case:

    Sometimes the default iptables policy for FORWARD, OUTPUT, INPUT will be drop

    iptables --policy FORWARD ACCEPT

    iptables --policy INPUT ACCEPT

    iptables --policy OUTPUT ACCEPT

    We can see all the old chains below before running the script and then after the script they are all deleted.


  • System has not been booted with systemd as init system (PID 1). Can't operate. Failed to talk to init daemon. Ubuntu Debian Linux Solution Cannot reboot


    You are probably using some custom image or maybe this is some sort of container that didn't boot with systemd.

     

    The solution is to use "reboot -f"

    reboot -f

    This will force the system/OS/VM/container to reboot.

    Reference To Related Issue.


  • Mint Ubuntu Linux Gnome Showing Home Directory on Desktop instead of Desktop Directory


    During a migration or other custom setup, it's possible you don't have a $HOME/Desktop and as a result the config file that controls this is set to just use your $HOME directory.


    This is controlled in the file: $HOME/.config/user-dirs.dirs

    As we can see below, Desktop, Downloads, Music and Pictures are set to $HOME.  We can edit any of these as we like.

    # This file is written by xdg-user-dirs-update
    # If you want to change or add directories, just edit the line you're
    # interested in. All local changes will be retained on the next run.
    # Format is XDG_xxx_DIR="$HOME/yyy", where yyy is a shell-escaped
    # homedir-relative path, or XDG_xxx_DIR="/yyy", where /yyy is an
    # absolute path. No other format is supported.
    #
    XDG_DESKTOP_DIR="$HOME/"
    XDG_DOWNLOAD_DIR="$HOME/"

    XDG_TEMPLATES_DIR="$HOME/Templates"
    XDG_PUBLICSHARE_DIR="$HOME/Public"
    XDG_DOCUMENTS_DIR="$HOME/Documents"
    XDG_MUSIC_DIR="$HOME/"
    XDG_PICTURES_DIR="$HOME/"

    XDG_VIDEOS_DIR="$HOME/Videos"

    Fixed:

    # This file is written by xdg-user-dirs-update
    # If you want to change or add directories, just edit the line you're
    # interested in. All local changes will be retained on the next run.
    # Format is XDG_xxx_DIR="$HOME/yyy", where yyy is a shell-escaped
    # homedir-relative path, or XDG_xxx_DIR="/yyy", where /yyy is an
    # absolute path. No other format is supported.
    #
    XDG_DESKTOP_DIR="$HOME/Desktop"
    XDG_DOWNLOAD_DIR="$HOME/Downloads"

    XDG_TEMPLATES_DIR="$HOME/Templates"
    XDG_PUBLICSHARE_DIR="$HOME/Public"
    XDG_DOCUMENTS_DIR="$HOME/Documents"
    XDG_MUSIC_DIR="$HOME/Music"
    XDG_PICTURES_DIR="$HOME/Pictures"

    XDG_VIDEOS_DIR="$HOME/Videos"


  • vi vim not doing code highlighting E319: Sorry, the command is not available in this version solution


    Normally syntax highlighting is the default behavior. 

    You can enable it manually by hitting :syntax on

    But normally you'll have this error because of the missing package.

    E319: Sorry, the command is not available in this version

    Solution install the vim-gui-common package:

    apt install vim-gui-common
     

    After that you should find that the code is highlighted by default.

    Happy coding!


  • Proxmox How To Rename Node Hostname Fix Solution


    Proxmox's documentation shows the following here.

    Which mainly just says change /etc/hosts and /etc/hostname with your new hostname.

    Here's what happens if you only do that:

    If you just do the above, you will find you have an inaccessible original hostname that contains those VMs and you cannot move or stop them.

    You need to go into /etc/pve/nodes

    You'll see the following inside:

    oldhostname

    newhostname

    1.) Move both of those somewhere else.

    2.) Create a dir called "newhostname"

    3.) Copy the contents of "oldhostname" to "newhostname"

    It's Fixed!

     


  • Linux how to get list of all timezones on system Ubuntu


    find  /usr/share/zoneinfo/|sed s#"/usr/share/zoneinfo/"##g|grep "/"|grep -v posix|grep -v ^"Etc/"|grep -v ^right|grep -v ^"SystemV"

     

    Africa/Addis_Ababa
    Africa/Abidjan
    Africa/Blantyre
    Africa/Lusaka
    Africa/Casablanca
    Africa/Libreville
    Africa/Asmara
    Africa/Bujumbura
    Africa/Dakar
    Africa/Lagos
    Africa/Malabo
    Africa/Harare
    Africa/Kigali
    Africa/Mogadishu
    Africa/Maseru
    Africa/Tunis
    Africa/Ouagadougou
    Africa/Sao_Tome
    Africa/Kinshasa
    Africa/Asmera
    Africa/Tripoli
    Africa/Khartoum
    Africa/Conakry
    Africa/Nouakchott
    Africa/Djibouti
    Africa/Niamey
    Africa/Bangui
    Africa/Ndjamena
    Africa/Kampala
    Africa/Johannesburg
    Africa/Algiers
    Africa/Banjul
    Africa/Lubumbashi
    Africa/Monrovia
    Africa/Timbuktu
    Africa/Juba
    Africa/Windhoek
    Africa/Cairo
    Africa/Porto-Novo
    Africa/Lome
    Africa/Douala
    Africa/Bissau
    Africa/Brazzaville
    Africa/Nairobi
    Africa/Bamako
    Africa/Dar_es_Salaam
    Africa/Ceuta
    Africa/Freetown
    Africa/El_Aaiun
    Africa/Maputo
    Africa/Mbabane
    Africa/Accra
    Africa/Luanda
    Africa/Gaborone
    Chile/Continental
    Chile/EasterIsland
    Brazil/DeNoronha
    Brazil/West
    Brazil/East
    Brazil/Acre
    Antarctica/Davis
    Antarctica/Macquarie
    Antarctica/Vostok
    Antarctica/Casey
    Antarctica/Syowa
    Antarctica/South_Pole
    Antarctica/Rothera
    Antarctica/Palmer
    Antarctica/McMurdo
    Antarctica/Troll
    Antarctica/Mawson
    Antarctica/DumontDUrville
    Canada/Eastern
    Canada/Newfoundland
    Canada/Saskatchewan
    Canada/Central
    Canada/Yukon
    Canada/Atlantic
    Canada/Pacific
    Canada/Mountain
    US/Arizona
    US/Eastern
    US/Central
    US/Indiana-Starke
    US/Hawaii
    US/Alaska
    US/Aleutian
    US/Samoa
    US/Pacific
    US/Mountain
    US/Michigan
    US/East-Indiana
    Mexico/BajaNorte
    Mexico/General
    Mexico/BajaSur
    Indian/Mayotte
    Indian/Mauritius
    Indian/Reunion
    Indian/Kerguelen
    Indian/Cocos
    Indian/Christmas
    Indian/Antananarivo
    Indian/Comoro
    Indian/Mahe
    Indian/Chagos
    Indian/Maldives
    Europe/Brussels
    Europe/Tallinn
    Europe/San_Marino
    Europe/Isle_of_Man
    Europe/Bucharest
    Europe/Zagreb
    Europe/Oslo
    Europe/Astrakhan
    Europe/Mariehamn
    Europe/Gibraltar
    Europe/Zaporozhye
    Europe/Ulyanovsk
    Europe/Volgograd
    Europe/Vaduz
    Europe/Vienna
    Europe/Bratislava
    Europe/Chisinau
    Europe/Berlin
    Europe/Guernsey
    Europe/Kirov
    Europe/Tirane
    Europe/Sarajevo
    Europe/Budapest
    Europe/Warsaw
    Europe/Dublin
    Europe/Jersey
    Europe/Minsk
    Europe/Moscow
    Europe/Monaco
    Europe/Kiev
    Europe/Ljubljana
    Europe/Kyiv
    Europe/Istanbul
    Europe/Prague
    Europe/Sofia
    Europe/Rome
    Europe/Zurich
    Europe/Madrid
    Europe/Uzhgorod
    Europe/Malta
    Europe/Luxembourg
    Europe/Kaliningrad
    Europe/Paris
    Europe/Vilnius
    Europe/Vatican
    Europe/Copenhagen
    Europe/Belgrade
    Europe/Stockholm
    Europe/Helsinki
    Europe/Lisbon
    Europe/Podgorica
    Europe/Simferopol
    Europe/Andorra
    Europe/Samara
    Europe/Athens
    Europe/London
    Europe/Amsterdam
    Europe/Skopje
    Europe/Saratov
    Europe/Busingen
    Europe/Belfast
    Europe/Nicosia
    Europe/Riga
    Europe/Tiraspol
    Atlantic/Reykjavik
    Atlantic/Jan_Mayen
    Atlantic/St_Helena
    Atlantic/South_Georgia
    Atlantic/Canary
    Atlantic/Stanley
    Atlantic/Cape_Verde
    Atlantic/Bermuda
    Atlantic/Faeroe
    Atlantic/Madeira
    Atlantic/Azores
    Atlantic/Faroe
    America/Merida
    America/Maceio
    America/Monterrey
    America/Jujuy
    America/Costa_Rica
    America/Santiago
    America/Panama
    America/Dawson_Creek
    America/Bahia
    America/Los_Angeles
    America/Danmarkshavn
    America/La_Paz
    America/Iqaluit
    America/Cancun
    America/Rankin_Inlet
    America/Rosario
    America/Grand_Turk
    America/Bahia_Banderas
    America/Kralendijk
    America/Punta_Arenas
    America/Menominee
    America/Moncton
    America/Cordoba
    America/Port-au-Prince
    America/Inuvik
    America/Noronha
    America/Argentina
    America/Argentina/Ushuaia
    America/Argentina/Jujuy
    America/Argentina/Cordoba
    America/Argentina/Tucuman
    America/Argentina/Mendoza
    America/Argentina/Rio_Gallegos
    America/Argentina/San_Juan
    America/Argentina/Buenos_Aires
    America/Argentina/Salta
    America/Argentina/La_Rioja
    America/Argentina/Catamarca
    America/Argentina/San_Luis
    America/Argentina/ComodRivadavia
    America/Miquelon
    America/Coral_Harbour
    America/Curacao
    America/Mendoza
    America/Metlakatla
    America/Sitka
    America/Eirunepe
    America/Fortaleza
    America/Tegucigalpa
    America/Recife
    America/Dominica
    America/Rainy_River
    America/Ciudad_Juarez
    America/St_Barthelemy
    America/Boa_Vista
    America/Thunder_Bay
    America/Buenos_Aires
    America/Resolute
    America/Campo_Grande
    America/Atikokan
    America/St_Vincent
    America/Chihuahua
    America/Godthab
    America/Dawson
    America/Aruba
    America/Winnipeg
    America/El_Salvador
    America/Porto_Velho
    America/Caracas
    America/Managua
    America/Havana
    America/Montevideo
    America/Jamaica
    America/Blanc-Sablon
    America/Guayaquil
    America/Port_of_Spain
    America/Regina
    America/Fort_Nelson
    America/Denver
    America/St_Thomas
    America/Cayenne
    America/Araguaina
    America/Swift_Current
    America/Anchorage
    America/Antigua
    America/Fort_Wayne
    America/Barbados
    America/Belize
    America/Matamoros
    America/Creston
    America/Santarem
    America/Nipigon
    America/Louisville
    America/Santo_Domingo
    America/Halifax
    America/Martinique
    America/Chicago
    America/Hermosillo
    America/Rio_Branco
    America/Lower_Princes
    America/Manaus
    America/Knox_IN
    America/Phoenix
    America/North_Dakota
    America/North_Dakota/New_Salem
    America/North_Dakota/Center
    America/North_Dakota/Beulah
    America/Tijuana
    America/Boise
    America/Bogota
    America/Lima
    America/Montreal
    America/Indianapolis
    America/Yellowknife
    America/Toronto
    America/Catamarca
    America/Goose_Bay
    America/Nuuk
    America/Thule
    America/Asuncion
    America/Kentucky
    America/Kentucky/Monticello
    America/Kentucky/Louisville
    America/Guatemala
    America/Porto_Acre
    America/Edmonton
    America/Nassau
    America/Cayman
    America/Glace_Bay
    America/Indiana
    America/Indiana/Winamac
    America/Indiana/Vevay
    America/Indiana/Vincennes
    America/Indiana/Marengo
    America/Indiana/Petersburg
    America/Indiana/Indianapolis
    America/Indiana/Knox
    America/Indiana/Tell_City
    America/Vancouver
    America/Tortola
    America/Grenada
    America/Mazatlan
    America/Cambridge_Bay
    America/Mexico_City
    America/Paramaribo
    America/Guyana
    America/St_Kitts
    America/Pangnirtung
    America/Montserrat
    America/Atka
    America/Ensenada
    America/Detroit
    America/Shiprock
    America/Whitehorse
    America/Nome
    America/Ojinaga
    America/Juneau
    America/Belem
    America/St_Johns
    America/Anguilla
    America/St_Lucia
    America/Puerto_Rico
    America/New_York
    America/Marigot
    America/Guadeloupe
    America/Sao_Paulo
    America/Adak
    America/Scoresbysund
    America/Virgin
    America/Cuiaba
    America/Yakutat
    America/Santa_Isabel
    Arctic/Longyearbyen
    Pacific/Tarawa
    Pacific/Guam
    Pacific/Gambier
    Pacific/Easter
    Pacific/Galapagos
    Pacific/Chatham
    Pacific/Fakaofo
    Pacific/Majuro
    Pacific/Pitcairn
    Pacific/Pohnpei
    Pacific/Noumea
    Pacific/Bougainville
    Pacific/Tahiti
    Pacific/Wake
    Pacific/Kosrae
    Pacific/Ponape
    Pacific/Niue
    Pacific/Enderbury
    Pacific/Rarotonga
    Pacific/Honolulu
    Pacific/Kiritimati
    Pacific/Nauru
    Pacific/Funafuti
    Pacific/Tongatapu
    Pacific/Guadalcanal
    Pacific/Samoa
    Pacific/Kanton
    Pacific/Palau
    Pacific/Pago_Pago
    Pacific/Kwajalein
    Pacific/Apia
    Pacific/Johnston
    Pacific/Saipan
    Pacific/Efate
    Pacific/Truk
    Pacific/Norfolk
    Pacific/Marquesas
    Pacific/Port_Moresby
    Pacific/Fiji
    Pacific/Wallis
    Pacific/Midway
    Pacific/Auckland
    Pacific/Yap
    Pacific/Chuuk
    Asia/Ashkhabad
    Asia/Manila
    Asia/Amman
    Asia/Thimbu
    Asia/Vientiane
    Asia/Barnaul
    Asia/Sakhalin
    Asia/Irkutsk
    Asia/Baku
    Asia/Ashgabat
    Asia/Saigon
    Asia/Kabul
    Asia/Aqtobe
    Asia/Kuala_Lumpur
    Asia/Khandyga
    Asia/Yekaterinburg
    Asia/Kuching
    Asia/Beirut
    Asia/Tel_Aviv
    Asia/Macao
    Asia/Taipei
    Asia/Riyadh
    Asia/Karachi
    Asia/Pontianak
    Asia/Ust-Nera
    Asia/Jerusalem
    Asia/Chita
    Asia/Rangoon
    Asia/Kuwait
    Asia/Tehran
    Asia/Brunei
    Asia/Harbin
    Asia/Srednekolymsk
    Asia/Ujung_Pandang
    Asia/Thimphu
    Asia/Bangkok
    Asia/Makassar
    Asia/Phnom_Penh
    Asia/Chongqing
    Asia/Jayapura
    Asia/Atyrau
    Asia/Dacca
    Asia/Anadyr
    Asia/Dubai
    Asia/Jakarta
    Asia/Istanbul
    Asia/Aden
    Asia/Choibalsan
    Asia/Macau
    Asia/Almaty
    Asia/Samarkand
    Asia/Kamchatka
    Asia/Yangon
    Asia/Seoul
    Asia/Gaza
    Asia/Dhaka
    Asia/Magadan
    Asia/Kathmandu
    Asia/Calcutta
    Asia/Pyongyang
    Asia/Tokyo
    Asia/Chungking
    Asia/Muscat
    Asia/Vladivostok
    Asia/Ho_Chi_Minh
    Asia/Shanghai
    Asia/Tashkent
    Asia/Omsk
    Asia/Katmandu
    Asia/Ulan_Bator
    Asia/Colombo
    Asia/Hovd
    Asia/Hong_Kong
    Asia/Kolkata
    Asia/Baghdad
    Asia/Dili
    Asia/Qatar
    Asia/Kashgar
    Asia/Hebron
    Asia/Yerevan
    Asia/Tbilisi
    Asia/Aqtau
    Asia/Urumqi
    Asia/Yakutsk
    Asia/Bishkek
    Asia/Qostanay
    Asia/Ulaanbaatar
    Asia/Dushanbe
    Asia/Novosibirsk
    Asia/Novokuznetsk
    Asia/Oral
    Asia/Krasnoyarsk
    Asia/Singapore
    Asia/Nicosia
    Asia/Qyzylorda
    Asia/Bahrain
    Asia/Tomsk
    Asia/Famagusta
    Asia/Damascus
    Australia/Canberra
    Australia/Darwin
    Australia/Lord_Howe
    Australia/West
    Australia/Perth
    Australia/NSW
    Australia/Broken_Hill
    Australia/Melbourne
    Australia/LHI
    Australia/Hobart
    Australia/Lindeman
    Australia/Yancowinna
    Australia/Adelaide
    Australia/Tasmania
    Australia/North
    Australia/Victoria
    Australia/Eucla
    Australia/South
    Australia/Brisbane
    Australia/Currie
    Australia/Sydney
    Australia/ACT
    Australia/Queensland


  • Proxmox install issue cannot see the buttons or install wrong / bad resolution cannot see the entire screen problem solution


    If you are using a hypervisor to test Proxmox (eg. Vbox) then changing the video card/display adapter can fix it.

    For example VboxSVGA causes the issue but switching to VMSVGA fixes it.

     

    For example VboxSVGA causes the issue but switching to VMSVGA fixes it.

     

     

     

     

    If the above is not an option/real server here is how you navigate the installer blindly:

     

    EULA Screen:

    "Tab" * 2

    Hit "Enter"

    Target Hard Disk Screen:

    Hit "Enter"

    *If you need to change the target HDD hit tab twice and then enter to select the disk and then Tab 3 times and enter

    Location and Timezone Screen:

    Hit "Tab" 5 times and then hit "Enter"

    Admin Password and E-mail Address:

    Enter password and then hit "Tab"

    Enter password again and then hit "Tab"

    Enter e-mail and then hit "Tab" twice and "Enter"

    Management and Network Config:

    Enter hostname and hit "Enter"

    Enter IP and hit "Tab"

    Enter CIDR (eg. /24) and hit "Tab"

    Enter Gateway and hit "Enter"

    Enter DNS server and hit "Enter"

    "Tab" Twice

    Hit "Enter"

    Summary Screen

    Hit "Enter" to install

     

    Alternative Way

    Each line applies to the respective screen.

    1. alt + g
    2. alt + n
    3. alt + n
    4. alt + n
    5. alt + n
    6. enter

  • configure.ac:75: error: possibly undefined macro: AC_PROG_LIBTOOL If this token and others are legitimate, please use m4_pattern_allow. See the Autoconf documentation. solution


    configure.ac:75: error: possibly undefined macro: AC_PROG_LIBTOOL
          If this token and others are legitimate, please use m4_pattern_allow.
          See the Autoconf documentation.
    autoreconf: /usr/bin/autoconf failed with exit status: 1
    make: *** [/software/pixman/configure] Error 1
    make: *** Deleting file `/software/pixman/configure'


    yum install libtool

    or on Debian

    apt install libtool


  • Can't exec "aclocal": No such file or directory at /usr/share/autoconf/Autom4te/FileUtils.pm line 326. autoreconf: failed to run aclocal: No such file or directory solution


    autoreconf: Entering directory `.'
    autoreconf: configure.ac: not using Gettext
    autoreconf: running: aclocal  --output=aclocal.m4t
    Can't exec "aclocal": No such file or directory at /usr/share/autoconf/Autom4te/FileUtils.pm line 326.
    autoreconf: failed to run aclocal: No such file or directory
    make: *** [/software/pixman/configure] Error 1

     

    Just install automake:


    yum install automake

    or on Debian

    apt install automake


  • /bin/sh: autoreconf: command not found solution


    This means the autoconf package is not installed, so we'll install it:

    /bin/sh: autoreconf: command not found
     

    yum install autoconf

    On Debian

    apt install autoconf


  • glib-2.0 required to compile QEMU solution


    ./configure
    glib-2.0 required to compile QEMU


    yum install glib2 glib2-devel

    or on Debian/Ubuntu based:

    apt install libglib2 libglib2-dev


  • How To Upgrade Debian 8,9,10 to Debian 12 Bookworm


    Step 1.) Upgrade to Debian 11 first

    The process to go to Debian 12 is not as smooth as 11, when trying to upgrade from Debian 10.  In fact, it doesn't work directly, so you'll first need to follow this guide to update to Debian 11, reboot and come back here if successful.

    Step 2.) Update sources.list

    Update your /etc/apt/sources.list like this:

    deb http://deb.debian.org/debian bookworm main
    deb-src http://deb.debian.org/debian bookworm main

    deb http://deb.debian.org/debian-security/ bookworm-security main
    deb-src http://deb.debian.org/debian-security/ bookworm-security main

    deb http://deb.debian.org/debian bookworm-updates main
    deb-src http://deb.debian.org/debian bookworm-updates main

    Step 3.) Add The GPG Keys

     

    How To Get the Bookworm GPG Keys:

    A list for all Debian keys is here: https://ftp-master.debian.org/keys.html

    wget https://ftp-master.debian.org/keys/archive-key-12.asc -P /etc/apt/trusted.gpg.d

    wget https://ftp-master.debian.org/keys/archive-key-12-security.asc -P /etc/apt/trusted.gpg.d

    Step 4.) Update apt & Upgrade

    apt update

    apt dist-upgrade

    After you are successful, you should reboot and confirm it looks good like this:

    root@Debian10UpgradeTestAgain1111:/etc/apt# apt dist-upgrade
    Reading package lists... Done
    Building dependency tree... Done
    Reading state information... Done
    Calculating upgrade... Done
    The following packages were automatically installed and are no longer required:
      bsdmainutils libbpf0 libcbor0 libdns-export1110 libffi7 libisc-export1105 libldap-2.4-2 libmpdec2 libmpdec3 libperl5.32 libprocps8 libpython3.7-minimal libpython3.7-stdlib libpython3.9-minimal
      libpython3.9-stdlib libreadline7 libusb-0.1-4 perl-modules-5.32 python3.7 python3.7-minimal python3.9 python3.9-minimal usb.ids
    Use 'apt autoremove' to remove them.
    The following packages will be REMOVED:
      libsemanage1
    The following NEW packages will be installed:
      cron-daemon-common dbus-bin dbus-daemon dbus-session-bus-common dbus-system-bus-common dbus-user-session gcc-12-base libbpf1 libcbor0.8 libffi8 libfile-find-rule-perl libldap-2.5-0 libnumber-compare-perl
      libperl5.36 libproc2-0 libpython3.11-minimal libpython3.11-stdlib libsemanage2 libsepol2 libssl3 libsystemd-shared libtext-glob-perl linux-image-6.1.0-13-amd64 perl-modules-5.36 python3-charset-normalizer
      python3-pyparsing python3.11 python3.11-minimal usrmerge util-linux-extra zstd
    The following packages will be upgraded:
      adduser apparmor apt apt-utils base-files base-passwd bash bash-completion bsdextrautils bsdmainutils bsdutils busybox bzip2 ca-certificates console-setup console-setup-linux coreutils cpio cron dash dbus
      debconf debconf-i18n debian-archive-keyring debianutils diffutils discover discover-data distro-info-data dmidecode dmsetup dpkg e2fsprogs eject fdisk file findutils gdbm-l10n gettext-base gpgv grep
      grub-common grub-pc grub-pc-bin grub2-common gzip hostname ifupdown init init-system-helpers initramfs-tools initramfs-tools-core installation-report iproute2 iptables iputils-ping isc-dhcp-client
      isc-dhcp-common kbd keyboard-configuration klibc-utils kmod less libacl1 libapparmor1 libapt-pkg6.0 libargon2-1 libattr1 libaudit-common libaudit1 libblkid1 libbrotli1 libbsd0 libbz2-1.0 libc-bin
      libc-l10n libc6 libcap-ng0 libcap2 libcap2-bin libcom-err2 libcrypt1 libcryptsetup12 libcurl3-gnutls libdb5.3 libdbus-1-3 libdebconfclient0 libdevmapper1.02.1 libdiscover2 libedit2 libelf1 libestr0
      libexpat1 libext2fs2 libfastjson4 libfdisk1 libfido2-1 libfreetype6 libfuse2 libgcc-s1 libgcrypt20 libgdbm-compat4 libgdbm6 libgmp10 libgnutls30 libgpg-error0 libgssapi-krb5-2 libhogweed6 libidn2-0
      libip4tc2 libip6tc2 libiptc0 libjson-c5 libk5crypto3 libkeyutils1 libklibc libkmod2 libkrb5-3 libkrb5support0 libldap-common liblocale-gettext-perl liblognorm5 liblz4-1 liblzma5 libmagic-mgc libmagic1
      libmd0 libmount1 libncurses6 libncursesw6 libnetfilter-conntrack3 libnettle8 libnewt0.52 libnfnetlink0 libnftnl11 libnghttp2-14 libnss-systemd libp11-kit0 libpam-modules libpam-modules-bin libpam-runtime
      libpam-systemd libpam0g libpci3 libpcre2-8-0 libpcre3 libpng16-16 libpopt0 libpsl5 libpython3-stdlib libreadline8 libsasl2-2 libsasl2-modules-db libseccomp2 libselinux1 libsemanage-common libslang2
      libsmartcols1 libsqlite3-0 libss2 libssh2-1 libstdc++6 libsystemd0 libtasn1-6 libtext-charwidth-perl libtext-iconv-perl libtext-wrapi18n-perl libtinfo6 libtirpc-common libtirpc3 libudev1 libunistring2
      libusb-1.0-0 libuuid1 libwrap0 libx11-6 libx11-data libxcb1 libxext6 libxmuu1 libxtables12 libxxhash0 libzstd1 linux-base linux-image-amd64 locales login logrotate logsave lsb-base mailcap manpages mawk
      media-types mount nano ncal ncurses-base ncurses-bin ncurses-term netbase openssh-client openssh-server openssh-sftp-server openssl os-prober passwd pci.ids pciutils perl perl-base procps
      python-apt-common python3 python3-apt python3-certifi python3-chardet python3-debian python3-debianbts python3-httplib2 python3-idna python3-minimal python3-pkg-resources python3-pycurl
      python3-pysimplesoap python3-reportbug python3-requests python3-six python3-urllib3 readline-common reportbug rsyslog runit-helper sed sensible-utils systemd systemd-sysv systemd-timesyncd sysvinit-utils
      tar tasksel tasksel-data tzdata ucf udev usb.ids usbutils util-linux vim-common vim-tiny wget whiptail xauth xkb-data xxd xz-utils zlib1g
    257 upgraded, 31 newly installed, 1 to remove and 0 not upgraded.
    Need to get 164 MB of archives.
    After this operation, 500 MB of additional disk space will be used.
    Do you want to continue? [Y/n] y
    Get:1 http://deb.debian.org/debian bookworm/main amd64 base-files amd64 12.4+deb12u2 [70.7 kB]
    Get:2 http://deb.debian.org/debian-security bookworm-security/main amd64 libc-l10n all 2.36-9+deb12u3 [674 kB]
    Get:3 http://deb.debian.org/debian-security bookworm-security/main amd64 locales all 2.36-9+deb12u3 [3,904 kB]
    Get:4 http://deb.debian.org/debian-security bookworm-security/main amd64 libc6 amd64 2.36-9+deb12u3 [2,755 kB]
    Get:5 http://deb.debian.org/debian-security bookworm-security/main amd64 libc-bin amd64 2.36-9+deb12u3 [606 kB]
    Get:6 http://deb.debian.org/debian bookworm/main amd64 perl-modules-5.36 all 5.36.0-7 [2,815 kB]
    Get:7 http://deb.debian.org/debian bookworm/main amd64 libgdbm6 amd64 1.23-3 [72.2 kB]
    Get:8 http://deb.debian.org/debian bookworm/main amd64 libperl5.36 amd64 5.36.0-7 [4,218 kB]
    Get:9 http://deb.debian.org/debian bookworm/main amd64 perl amd64 5.36.0-7 [239 kB]
    Get:10 http://deb.debian.org/debian bookworm/main amd64 perl-base amd64 5.36.0-7 [1,608 kB]
    Get:11 http://deb.debian.org/debian bookworm/main amd64 liblocale-gettext-perl amd64 1.07-5 [15.4 kB]
    Get:12 http://deb.debian.org/debian bookworm/main amd64 libtext-iconv-perl amd64 1.7-8 [14.5 kB]
    Get:13 http://deb.debian.org/debian bookworm/main amd64 libtext-charwidth-perl amd64 0.04-11 [9,496 B]
    Get:14 http://deb.debian.org/debian bookworm/main amd64 bzip2 amd64 1.0.8-5+b1 [49.8 kB]
    Get:15 http://deb.debian.org/debian bookworm/main amd64 libbz2-1.0 amd64 1.0.8-5+b1 [47.3 kB]
    Get:16 http://deb.debian.org/debian bookworm/main amd64 libaudit-common all 1:3.0.9-1 [10.4 kB]
    Get:17 http://deb.debian.org/debian bookworm/main amd64 libcap-ng0 amd64 0.8.3-1+b3 [17.1 kB]
    Get:18 http://deb.debian.org/debian bookworm/main amd64 libaudit1 amd64 1:3.0.9-1 [46.8 kB]
    Get:19 http://deb.debian.org/debian bookworm/main amd64 libpam0g amd64 1.5.2-6+deb12u1 [92.0 kB]
    Get:20 http://deb.debian.org/debian bookworm/main amd64 libcrypt1 amd64 1:4.4.33-2 [89.5 kB]
    Get:21 http://deb.debian.org/debian bookworm/main amd64 libdb5.3 amd64 5.3.28+dfsg2-1 [697 kB]
    Get:22 http://deb.debian.org/debian bookworm/main amd64 libgdbm-compat4 amd64 1.23-3 [48.2 kB]
    Get:23 http://deb.debian.org/debian bookworm/main amd64 zlib1g amd64 1:1.2.13.dfsg-1 [86.7 kB]
    Get:24 http://deb.debian.org/debian bookworm/main amd64 libtext-wrapi18n-perl all 0.06-10 [8,808 B]
    Get:25 http://deb.debian.org/debian bookworm/main amd64 debconf-i18n all 1.5.82 [208 kB]
    Get:26 http://deb.debian.org/debian bookworm/main amd64 debconf all 1.5.82 [121 kB]
    Get:27 http://deb.debian.org/debian bookworm/main amd64 gcc-12-base amd64 12.2.0-14 [37.5 kB]
    Get:28 http://deb.debian.org/debian bookworm/main amd64 libgcc-s1 amd64 12.2.0-14 [49.9 kB]
    Get:29 http://deb.debian.org/debian bookworm/main amd64 libsemanage-common all 3.4-1 [21.6 kB]
    Get:30 http://deb.debian.org/debian bookworm/main amd64 libselinux1 amd64 3.4-1+b6 [73.7 kB]
    Get:31 http://deb.debian.org/debian bookworm/main amd64 libsepol2 amd64 3.4-2.1 [276 kB]
    Get:32 http://deb.debian.org/debian bookworm/main amd64 libsemanage2 amd64 3.4-1+b5 [89.9 kB]
    Get:33 http://deb.debian.org/debian bookworm/main amd64 passwd amd64 1:4.13+dfsg1-1+b1 [972 kB]
    Get:34 http://deb.debian.org/debian bookworm/main amd64 libpcre2-8-0 amd64 10.42-1 [261 kB]
    Get:35 http://deb.debian.org/debian bookworm/main amd64 libpam-modules-bin amd64 1.5.2-6+deb12u1 [75.6 kB]
    Get:36 http://deb.debian.org/debian bookworm/main amd64 libpam-modules amd64 1.5.2-6+deb12u1 [291 kB]
    Get:37 http://deb.debian.org/debian bookworm/main amd64 adduser all 3.134 [183 kB]
    Get:38 http://deb.debian.org/debian bookworm/main amd64 libelf1 amd64 0.188-2.1 [174 kB]
    Get:39 http://deb.debian.org/debian bookworm/main amd64 libbpf1 amd64 1:1.1.0-1 [145 kB]
    Get:40 http://deb.debian.org/debian bookworm/main amd64 libmd0 amd64 1.0.4-2 [29.5 kB]
    Get:41 http://deb.debian.org/debian bookworm/main amd64 libbsd0 amd64 0.11.7-2 [117 kB]
    Get:42 http://deb.debian.org/debian bookworm/main amd64 libcap2 amd64 1:2.66-4 [27.0 kB]
    Get:43 http://deb.debian.org/debian bookworm/main amd64 libtirpc-common all 1.3.3+ds-1 [14.0 kB]
    Get:44 http://deb.debian.org/debian-security bookworm-security/main amd64 libssl3 amd64 3.0.11-1~deb12u2 [2,019 kB]
    Get:45 http://deb.debian.org/debian bookworm/main amd64 libcom-err2 amd64 1.47.0-2 [19.8 kB]
    Get:46 http://deb.debian.org/debian bookworm/main amd64 libkeyutils1 amd64 1.6.3-2 [8,808 B]
    Get:47 http://deb.debian.org/debian bookworm/main amd64 libk5crypto3 amd64 1.20.1-2+deb12u1 [78.9 kB]
    Get:48 http://deb.debian.org/debian bookworm/main amd64 libgssapi-krb5-2 amd64 1.20.1-2+deb12u1 [134 kB]
    Get:49 http://deb.debian.org/debian bookworm/main amd64 libkrb5support0 amd64 1.20.1-2+deb12u1 [32.4 kB]
    Get:50 http://deb.debian.org/debian bookworm/main amd64 libkrb5-3 amd64 1.20.1-2+deb12u1 [332 kB]
    Get:51 http://deb.debian.org/debian bookworm/main amd64 libtirpc3 amd64 1.3.3+ds-1 [85.2 kB]
    Get:52 http://deb.debian.org/debian bookworm/main amd64 libiptc0 amd64 1.8.9-2 [7,032 B]
    Get:53 http://deb.debian.org/debian bookworm/main amd64 libxtables12 amd64 1.8.9-2 [30.8 kB]
    Get:54 http://deb.debian.org/debian bookworm/main amd64 iptables amd64 1.8.9-2 [360 kB]
    Get:55 http://deb.debian.org/debian bookworm/main amd64 libip4tc2 amd64 1.8.9-2 [19.0 kB]
    Get:56 http://deb.debian.org/debian bookworm/main amd64 libip6tc2 amd64 1.8.9-2 [19.4 kB]
    Get:57 http://deb.debian.org/debian bookworm/main amd64 libnfnetlink0 amd64 1.0.2-2 [15.1 kB]
    Get:58 http://deb.debian.org/debian bookworm/main amd64 netbase all 6.4 [12.8 kB]
    Get:59 http://deb.debian.org/debian bookworm/main amd64 libnetfilter-conntrack3 amd64 1.0.9-3 [40.7 kB]
    Get:60 http://deb.debian.org/debian bookworm/main amd64 libnftnl11 amd64 1.2.4-2 [61.6 kB]
    Get:61 http://deb.debian.org/debian bookworm/main amd64 libcap2-bin amd64 1:2.66-4 [34.7 kB]
    Get:62 http://deb.debian.org/debian bookworm/main amd64 iproute2 amd64 6.1.0-3 [1,046 kB]
    Get:63 http://deb.debian.org/debian bookworm/main amd64 ifupdown amd64 0.8.41 [62.1 kB]
    Get:64 http://deb.debian.org/debian bookworm/main amd64 debianutils amd64 5.7-0.5~deb12u1 [103 kB]
    Get:65 http://deb.debian.org/debian bookworm/main amd64 bash amd64 5.2.15-2+b2 [1,491 kB]
    Get:66 http://deb.debian.org/debian bookworm/main amd64 bsdutils amd64 1:2.38.1-5+b1 [94.4 kB]
    Get:67 http://deb.debian.org/debian bookworm/main amd64 libgmp10 amd64 2:6.2.1+dfsg1-1.1 [563 kB]
    Get:68 http://deb.debian.org/debian bookworm/main amd64 coreutils amd64 9.1-1 [2,897 kB]
    Get:69 http://deb.debian.org/debian bookworm/main amd64 liblzma5 amd64 5.4.1-0.2 [205 kB]
    Get:70 http://deb.debian.org/debian bookworm/main amd64 libzstd1 amd64 1.5.4+dfsg2-5 [290 kB]
    Get:71 http://deb.debian.org/debian bookworm/main amd64 tar amd64 1.34+dfsg-1.2 [836 kB]
    Get:72 http://deb.debian.org/debian bookworm/main amd64 dpkg amd64 1.21.22 [1,567 kB]
    Get:73 http://deb.debian.org/debian bookworm/main amd64 dash amd64 0.5.12-2 [91.8 kB]
    Get:74 http://deb.debian.org/debian bookworm/main amd64 diffutils amd64 1:3.8-4 [352 kB]
    Get:75 http://deb.debian.org/debian bookworm/main amd64 findutils amd64 4.9.0-4 [636 kB]
    Get:76 http://deb.debian.org/debian bookworm/main amd64 grep amd64 3.8-5 [421 kB]
    Get:77 http://deb.debian.org/debian bookworm/main amd64 gzip amd64 1.12-1 [140 kB]
    Get:78 http://deb.debian.org/debian bookworm/main amd64 hostname amd64 3.23+nmu1 [10.5 kB]
    Get:79 http://deb.debian.org/debian bookworm/main amd64 login amd64 1:4.13+dfsg1-1+b1 [616 kB]
    Get:80 http://deb.debian.org/debian bookworm/main amd64 libncurses6 amd64 6.4-4 [103 kB]
    Get:81 http://deb.debian.org/debian bookworm/main amd64 libncursesw6 amd64 6.4-4 [134 kB]
    Get:82 http://deb.debian.org/debian bookworm/main amd64 libtinfo6 amd64 6.4-4 [331 kB]
    Get:83 http://deb.debian.org/debian bookworm/main amd64 ncurses-bin amd64 6.4-4 [421 kB]
    Get:84 http://deb.debian.org/debian bookworm/main amd64 sed amd64 4.9-1 [329 kB]
    Get:85 http://deb.debian.org/debian bookworm/main amd64 libblkid1 amd64 2.38.1-5+b1 [147 kB]
    Get:86 http://deb.debian.org/debian bookworm/main amd64 libmount1 amd64 2.38.1-5+b1 [166 kB]
    Get:87 http://deb.debian.org/debian bookworm/main amd64 libsmartcols1 amd64 2.38.1-5+b1 [107 kB]
    Get:88 http://deb.debian.org/debian bookworm/main amd64 libfdisk1 amd64 2.38.1-5+b1 [194 kB]
    Get:89 http://deb.debian.org/debian bookworm/main amd64 fdisk amd64 2.38.1-5+b1 [142 kB]
    Get:90 http://deb.debian.org/debian bookworm/main amd64 util-linux-extra amd64 2.38.1-5+b1 [111 kB]
    Get:91 http://deb.debian.org/debian bookworm/main amd64 util-linux amd64 2.38.1-5+b1 [1,177 kB]
    Get:92 http://deb.debian.org/debian bookworm/main amd64 libuuid1 amd64 2.38.1-5+b1 [28.8 kB]
    Get:93 http://deb.debian.org/debian bookworm/main amd64 readline-common all 8.2-1.3 [69.0 kB]
    Get:94 http://deb.debian.org/debian bookworm/main amd64 libreadline8 amd64 8.2-1.3 [166 kB]
    Get:95 http://deb.debian.org/debian bookworm/main amd64 libgpg-error0 amd64 1.46-1 [76.9 kB]
    Get:96 http://deb.debian.org/debian bookworm/main amd64 libgcrypt20 amd64 1.10.1-3 [696 kB]
    Get:97 http://deb.debian.org/debian bookworm/main amd64 libstdc++6 amd64 12.2.0-14 [614 kB]
    Get:98 http://deb.debian.org/debian bookworm/main amd64 liblz4-1 amd64 1.9.4-1 [62.9 kB]
    Get:99 http://deb.debian.org/debian bookworm/main amd64 libargon2-1 amd64 0~20171227-0.3+deb12u1 [19.4 kB]
    Get:100 http://deb.debian.org/debian bookworm/main amd64 dmsetup amd64 2:1.02.185-2 [82.0 kB]
    Get:101 http://deb.debian.org/debian bookworm/main amd64 libacl1 amd64 2.3.1-3 [31.5 kB]
    Get:102 http://deb.debian.org/debian bookworm/main amd64 kmod amd64 30+20221128-1 [95.2 kB]
    Get:103 http://deb.debian.org/debian bookworm/main amd64 libkmod2 amd64 30+20221128-1 [57.9 kB]
    Get:104 http://deb.debian.org/debian bookworm/main amd64 less amd64 590-2 [131 kB]
    Get:105 http://deb.debian.org/debian bookworm/main amd64 libnss-systemd amd64 252.17-1~deb12u1 [163 kB]
    Get:106 http://deb.debian.org/debian bookworm/main amd64 systemd-timesyncd amd64 252.17-1~deb12u1 [62.9 kB]
    Get:107 http://deb.debian.org/debian bookworm/main amd64 libpam-systemd amd64 252.17-1~deb12u1 [224 kB]
    Get:108 http://deb.debian.org/debian bookworm/main amd64 systemd amd64 252.17-1~deb12u1 [3,029 kB]
    Get:109 http://deb.debian.org/debian bookworm/main amd64 udev amd64 252.17-1~deb12u1 [1,643 kB]
    Get:110 http://deb.debian.org/debian bookworm/main amd64 libudev1 amd64 252.17-1~deb12u1 [108 kB]
    Get:111 http://deb.debian.org/debian bookworm/main amd64 libdevmapper1.02.1 amd64 2:1.02.185-2 [133 kB]
    Get:112 http://deb.debian.org/debian bookworm/main amd64 libjson-c5 amd64 0.16-2 [44.1 kB]
    Get:113 http://deb.debian.org/debian bookworm/main amd64 libcryptsetup12 amd64 2:2.6.1-4~deb12u1 [223 kB]
    Get:114 http://deb.debian.org/debian bookworm/main amd64 libapparmor1 amd64 3.0.8-3 [41.2 kB]
    Get:115 http://deb.debian.org/debian bookworm/main amd64 libseccomp2 amd64 2.5.4-1+b3 [46.6 kB]
    Get:116 http://deb.debian.org/debian bookworm/main amd64 libsystemd-shared amd64 252.17-1~deb12u1 [1,691 kB]
    Get:117 http://deb.debian.org/debian bookworm/main amd64 libpam-runtime all 1.5.2-6+deb12u1 [161 kB]
    Get:118 http://deb.debian.org/debian bookworm/main amd64 dbus amd64 1.14.10-1~deb12u1 [97.4 kB]
    Get:119 http://deb.debian.org/debian bookworm/main amd64 libdbus-1-3 amd64 1.14.10-1~deb12u1 [201 kB]
    Get:120 http://deb.debian.org/debian bookworm/main amd64 dbus-bin amd64 1.14.10-1~deb12u1 [105 kB]
    Get:121 http://deb.debian.org/debian bookworm/main amd64 dbus-session-bus-common all 1.14.10-1~deb12u1 [78.2 kB]
    Get:122 http://deb.debian.org/debian bookworm/main amd64 libexpat1 amd64 2.5.0-1 [99.3 kB]
    Get:123 http://deb.debian.org/debian bookworm/main amd64 dbus-daemon amd64 1.14.10-1~deb12u1 [184 kB]
    Get:124 http://deb.debian.org/debian bookworm/main amd64 dbus-system-bus-common all 1.14.10-1~deb12u1 [79.3 kB]
    Get:125 http://deb.debian.org/debian bookworm/main amd64 systemd-sysv amd64 252.17-1~deb12u1 [41.8 kB]
    Get:126 http://deb.debian.org/debian bookworm/main amd64 libffi8 amd64 3.4.4-1 [22.9 kB]
    Get:127 http://deb.debian.org/debian bookworm/main amd64 libp11-kit0 amd64 0.24.1-2 [345 kB]
    Get:128 http://deb.debian.org/debian bookworm/main amd64 mount amd64 2.38.1-5+b1 [134 kB]
    Get:129 http://deb.debian.org/debian bookworm/main amd64 libsystemd0 amd64 252.17-1~deb12u1 [331 kB]
    Get:130 http://deb.debian.org/debian bookworm/main amd64 libxxhash0 amd64 0.8.1-1 [27.6 kB]
    Get:131 http://deb.debian.org/debian bookworm/main amd64 libapt-pkg6.0 amd64 2.6.1 [907 kB]
    Get:132 http://deb.debian.org/debian bookworm/main amd64 libnettle8 amd64 3.8.1-2 [288 kB]
    Get:133 http://deb.debian.org/debian bookworm/main amd64 libhogweed6 amd64 3.8.1-2 [328 kB]
    Get:134 http://deb.debian.org/debian bookworm/main amd64 libunistring2 amd64 1.0-2 [437 kB]
    Get:135 http://deb.debian.org/debian bookworm/main amd64 libidn2-0 amd64 2.3.3-1+b1 [124 kB]
    Get:136 http://deb.debian.org/debian bookworm/main amd64 libtasn1-6 amd64 4.19.0-2 [56.6 kB]
    Get:137 http://deb.debian.org/debian bookworm/main amd64 libgnutls30 amd64 3.7.9-2 [1,403 kB]
    Get:138 http://deb.debian.org/debian bookworm/main amd64 apt amd64 2.6.1 [1,373 kB]
    Get:139 http://deb.debian.org/debian bookworm/main amd64 apt-utils amd64 2.6.1 [309 kB]
    Get:140 http://deb.debian.org/debian bookworm/main amd64 gpgv amd64 2.2.40-1.1 [648 kB]
    Get:141 http://deb.debian.org/debian bookworm/main amd64 debian-archive-keyring all 2023.3+deb12u1 [161 kB]
    Get:142 http://deb.debian.org/debian bookworm/main amd64 libdebconfclient0 amd64 0.270 [9,900 B]
    Get:143 http://deb.debian.org/debian bookworm/main amd64 base-passwd amd64 3.6.1 [60.0 kB]
    Get:144 http://deb.debian.org/debian bookworm/main amd64 libnumber-compare-perl all 0.03-3 [6,332 B]
    Get:145 http://deb.debian.org/debian bookworm/main amd64 libtext-glob-perl all 0.11-3 [7,676 B]
    Get:146 http://deb.debian.org/debian bookworm/main amd64 libfile-find-rule-perl all 0.34-3 [26.6 kB]
    Get:147 http://deb.debian.org/debian bookworm/main amd64 usrmerge all 35 [12.5 kB]
    Get:148 http://deb.debian.org/debian bookworm/main amd64 init-system-helpers all 1.65.2 [49.8 kB]
    Get:149 http://deb.debian.org/debian bookworm/main amd64 vim-tiny amd64 2:9.0.1378-2 [720 kB]
    Get:150 http://deb.debian.org/debian bookworm/main amd64 xxd amd64 2:9.0.1378-2 [83.7 kB]
    Get:151 http://deb.debian.org/debian bookworm/main amd64 vim-common all 2:9.0.1378-2 [124 kB]
    Get:152 http://deb.debian.org/debian bookworm/main amd64 ncurses-base all 6.4-4 [261 kB]
    Get:153 http://deb.debian.org/debian bookworm/main amd64 xkb-data all 2.35.1-1 [764 kB]
    Get:154 http://deb.debian.org/debian bookworm/main amd64 kbd amd64 2.5.1-1+b1 [335 kB]
    Get:155 http://deb.debian.org/debian bookworm/main amd64 console-setup-linux all 1.221 [1,882 kB]
    Get:156 http://deb.debian.org/debian bookworm/main amd64 console-setup all 1.221 [102 kB]
    Get:157 http://deb.debian.org/debian bookworm/main amd64 keyboard-configuration all 1.221 [416 kB]
    Get:158 http://deb.debian.org/debian bookworm/main amd64 sysvinit-utils amd64 3.06-4 [31.0 kB]
    Get:159 http://deb.debian.org/debian bookworm/main amd64 lsb-base all 11.6 [4,584 B]
    Get:160 http://deb.debian.org/debian bookworm/main amd64 logsave amd64 1.47.0-2 [19.6 kB]
    Get:161 http://deb.debian.org/debian bookworm/main amd64 klibc-utils amd64 2.0.12-1 [94.9 kB]
    Get:162 http://deb.debian.org/debian bookworm/main amd64 busybox amd64 1:1.35.0-4+b3 [452 kB]
    Get:163 http://deb.debian.org/debian bookworm/main amd64 initramfs-tools all 0.142 [72.9 kB]
    Get:164 http://deb.debian.org/debian bookworm/main amd64 initramfs-tools-core all 0.142 [105 kB]
    Get:165 http://deb.debian.org/debian bookworm/main amd64 libext2fs2 amd64 1.47.0-2 [205 kB]
    Get:166 http://deb.debian.org/debian bookworm/main amd64 e2fsprogs amd64 1.47.0-2 [571 kB]
    Get:167 http://deb.debian.org/debian bookworm/main amd64 libklibc amd64 2.0.12-1 [44.2 kB]
    Get:168 http://deb.debian.org/debian bookworm/main amd64 linux-base all 4.9 [31.8 kB]
    Get:169 http://deb.debian.org/debian bookworm/main amd64 cpio amd64 2.13+dfsg-7.1 [245 kB]
    Get:170 http://deb.debian.org/debian bookworm/main amd64 cron-daemon-common all 3.0pl1-162 [12.7 kB]
    Get:171 http://deb.debian.org/debian bookworm/main amd64 cron amd64 3.0pl1-162 [73.1 kB]
    Get:172 http://deb.debian.org/debian bookworm/main amd64 sensible-utils all 0.0.17+nmu1 [19.0 kB]
    Get:173 http://deb.debian.org/debian bookworm/main amd64 init amd64 1.65.2 [16.8 kB]
    Get:174 http://deb.debian.org/debian bookworm/main amd64 libedit2 amd64 3.1-20221030-2 [93.0 kB]
    Get:175 http://deb.debian.org/debian bookworm/main amd64 libcbor0.8 amd64 0.8.0-2+b1 [27.4 kB]
    Get:176 http://deb.debian.org/debian bookworm/main amd64 libfido2-1 amd64 1.12.0-2+b1 [77.2 kB]
    Get:177 http://deb.debian.org/debian bookworm/main amd64 openssh-sftp-server amd64 1:9.2p1-2+deb12u1 [65.8 kB]
    Get:178 http://deb.debian.org/debian bookworm/main amd64 openssh-server amd64 1:9.2p1-2+deb12u1 [455 kB]
    Get:179 http://deb.debian.org/debian bookworm/main amd64 openssh-client amd64 1:9.2p1-2+deb12u1 [989 kB]
    Get:180 http://deb.debian.org/debian bookworm/main amd64 libproc2-0 amd64 2:4.0.2-3 [62.8 kB]
    Get:181 http://deb.debian.org/debian bookworm/main amd64 procps amd64 2:4.0.2-3 [709 kB]
    Get:182 http://deb.debian.org/debian bookworm/main amd64 ucf all 3.0043+nmu1 [55.2 kB]
    Get:183 http://deb.debian.org/debian bookworm/main amd64 runit-helper all 2.15.2 [6,520 B]
    Get:184 http://deb.debian.org/debian bookworm/main amd64 libwrap0 amd64 7.6.q-32 [54.9 kB]
    Get:185 http://deb.debian.org/debian bookworm/main amd64 libpython3.11-minimal amd64 3.11.2-6 [813 kB]
    Get:186 http://deb.debian.org/debian bookworm/main amd64 python3.11-minimal amd64 3.11.2-6 [2,064 kB]
    Get:187 http://deb.debian.org/debian bookworm/main amd64 python3-pycurl amd64 7.45.2-3 [67.7 kB]
    Get:188 http://deb.debian.org/debian bookworm/main amd64 python3-apt amd64 2.6.0 [159 kB]
    Get:189 http://deb.debian.org/debian bookworm/main amd64 python3-minimal amd64 3.11.2-1+b1 [26.3 kB]
    Get:190 http://deb.debian.org/debian bookworm/main amd64 python3 amd64 3.11.2-1+b1 [26.3 kB]
    Get:191 http://deb.debian.org/debian bookworm/main amd64 libbrotli1 amd64 1.0.9-2+b6 [275 kB]
    Get:192 http://deb.debian.org/debian bookworm/main amd64 libsasl2-modules-db amd64 2.1.28+dfsg-10 [20.3 kB]
    Get:193 http://deb.debian.org/debian bookworm/main amd64 libsasl2-2 amd64 2.1.28+dfsg-10 [59.7 kB]
    Get:194 http://deb.debian.org/debian bookworm/main amd64 libldap-2.5-0 amd64 2.5.13+dfsg-5 [183 kB]
    Get:195 http://deb.debian.org/debian-security bookworm-security/main amd64 libnghttp2-14 amd64 1.52.0-1+deb12u1 [72.4 kB]
    Get:196 http://deb.debian.org/debian bookworm/main amd64 libpsl5 amd64 0.21.2-1 [58.7 kB]
    Get:197 http://deb.debian.org/debian bookworm/main amd64 libssh2-1 amd64 1.10.0-3+b1 [179 kB]
    Get:198 http://deb.debian.org/debian-security bookworm-security/main amd64 libcurl3-gnutls amd64 7.88.1-10+deb12u4 [385 kB]
    Get:199 http://deb.debian.org/debian bookworm/main amd64 python-apt-common all 2.6.0 [64.3 kB]
    Get:200 http://deb.debian.org/debian bookworm/main amd64 distro-info-data all 0.58 [5,848 B]
    Get:201 http://deb.debian.org/debian bookworm/main amd64 media-types all 10.0.0 [26.1 kB]
    Get:202 http://deb.debian.org/debian bookworm/main amd64 libsqlite3-0 amd64 3.40.1-2 [837 kB]
    Get:203 http://deb.debian.org/debian bookworm/main amd64 libpython3.11-stdlib amd64 3.11.2-6 [1,796 kB]
    Get:204 http://deb.debian.org/debian bookworm/main amd64 python3.11 amd64 3.11.2-6 [572 kB]
    Get:205 http://deb.debian.org/debian bookworm/main amd64 libpython3-stdlib amd64 3.11.2-1+b1 [9,312 B]
    Get:206 http://deb.debian.org/debian bookworm/main amd64 tasksel-data all 3.73 [18.0 kB]
    Get:207 http://deb.debian.org/debian bookworm/main amd64 tasksel all 3.73 [51.2 kB]
    Get:208 http://deb.debian.org/debian bookworm/main amd64 libattr1 amd64 1:2.5.1-4 [22.2 kB]
    Get:209 http://deb.debian.org/debian bookworm/main amd64 libpcre3 amd64 2:8.39-15 [341 kB]
    Get:210 http://deb.debian.org/debian bookworm/main amd64 mawk amd64 1.3.4.20200120-3.1 [119 kB]
    Get:211 http://deb.debian.org/debian bookworm/main amd64 tzdata all 2023c-5 [296 kB]
    Get:212 http://deb.debian.org/debian bookworm/main amd64 dmidecode amd64 3.4-1 [68.8 kB]
    Get:213 http://deb.debian.org/debian bookworm/main amd64 iputils-ping amd64 3:20221126-1 [47.1 kB]
    Get:214 http://deb.debian.org/debian bookworm/main amd64 isc-dhcp-client amd64 4.4.3-P1-2 [1,096 kB]
    Get:215 http://deb.debian.org/debian bookworm/main amd64 isc-dhcp-common amd64 4.4.3-P1-2 [117 kB]
    Get:216 http://deb.debian.org/debian bookworm/main amd64 libpopt0 amd64 1.19+dfsg-1 [43.3 kB]
    Get:217 http://deb.debian.org/debian bookworm/main amd64 logrotate amd64 3.21.0-1 [62.1 kB]
    Get:218 http://deb.debian.org/debian bookworm/main amd64 nano amd64 7.2-1 [689 kB]
    Get:219 http://deb.debian.org/debian bookworm/main amd64 ncurses-term all 6.4-4 [501 kB]
    Get:220 http://deb.debian.org/debian bookworm/main amd64 libslang2 amd64 2.3.3-3 [554 kB]
    Get:221 http://deb.debian.org/debian bookworm/main amd64 libnewt0.52 amd64 0.52.23-1+b1 [59.2 kB]
    Get:222 http://deb.debian.org/debian bookworm/main amd64 whiptail amd64 0.52.23-1+b1 [24.2 kB]
    Get:223 http://deb.debian.org/debian bookworm/main amd64 bash-completion all 1:2.11-6 [234 kB]
    Get:224 http://deb.debian.org/debian-security bookworm-security/main amd64 openssl amd64 3.0.11-1~deb12u2 [1,419 kB]
    Get:225 http://deb.debian.org/debian bookworm/main amd64 ca-certificates all 20230311 [153 kB]
    Get:226 http://deb.debian.org/debian bookworm/main amd64 file amd64 1:5.44-3 [42.5 kB]
    Get:227 http://deb.debian.org/debian bookworm/main amd64 libmagic1 amd64 1:5.44-3 [104 kB]
    Get:228 http://deb.debian.org/debian bookworm/main amd64 libmagic-mgc amd64 1:5.44-3 [305 kB]
    Get:229 http://deb.debian.org/debian bookworm/main amd64 gettext-base amd64 0.21-12 [160 kB]
    Get:230 http://deb.debian.org/debian bookworm/main amd64 manpages all 6.03-2 [1,332 kB]
    Get:231 http://deb.debian.org/debian bookworm/main amd64 pci.ids all 0.0~2023.04.11-1 [243 kB]
    Get:232 http://deb.debian.org/debian bookworm/main amd64 pciutils amd64 1:3.9.0-4 [104 kB]
    Get:233 http://deb.debian.org/debian bookworm/main amd64 libpci3 amd64 1:3.9.0-4 [67.4 kB]
    Get:234 http://deb.debian.org/debian bookworm/main amd64 reportbug all 12.0.0 [64.5 kB]
    Get:235 http://deb.debian.org/debian bookworm/main amd64 python3-pkg-resources all 66.1.1-1 [296 kB]
    Get:236 http://deb.debian.org/debian bookworm/main amd64 python3-chardet all 5.1.0+dfsg-2 [110 kB]
    Get:237 http://deb.debian.org/debian bookworm/main amd64 python3-debian all 0.1.49 [115 kB]
    Get:238 http://deb.debian.org/debian bookworm/main amd64 python3-pyparsing all 3.0.9-1 [138 kB]
    Get:239 http://deb.debian.org/debian bookworm/main amd64 python3-httplib2 all 0.20.4-3 [36.0 kB]
    Get:240 http://deb.debian.org/debian bookworm/main amd64 python3-pysimplesoap all 1.16.2-5 [43.1 kB]
    Get:241 http://deb.debian.org/debian bookworm/main amd64 python3-debianbts all 4.0.1 [12.2 kB]
    Get:242 http://deb.debian.org/debian bookworm/main amd64 python3-certifi all 2022.9.24-1 [153 kB]
    Get:243 http://deb.debian.org/debian bookworm/main amd64 python3-charset-normalizer all 3.0.1-2 [49.3 kB]
    Get:244 http://deb.debian.org/debian bookworm/main amd64 python3-idna all 3.3-1 [39.4 kB]
    Get:245 http://deb.debian.org/debian bookworm/main amd64 python3-six all 1.16.0-4 [17.5 kB]
    Get:246 http://deb.debian.org/debian bookworm/main amd64 python3-urllib3 all 1.26.12-1 [117 kB]
    Get:247 http://deb.debian.org/debian bookworm/main amd64 python3-requests all 2.28.1+dfsg-1 [67.9 kB]
    Get:248 http://deb.debian.org/debian bookworm/main amd64 python3-reportbug all 12.0.0 [78.9 kB]
    Get:249 http://deb.debian.org/debian bookworm/main amd64 wget amd64 1.21.3-1+b2 [984 kB]
    Get:250 http://deb.debian.org/debian bookworm/main amd64 xz-utils amd64 5.4.1-0.2 [471 kB]
    Get:251 http://deb.debian.org/debian bookworm/main amd64 apparmor amd64 3.0.8-3 [616 kB]
    Get:252 http://deb.debian.org/debian bookworm/main amd64 bsdextrautils amd64 2.38.1-5+b1 [86.6 kB]
    Get:253 http://deb.debian.org/debian bookworm/main amd64 ncal amd64 12.1.8 [19.7 kB]
    Get:254 http://deb.debian.org/debian bookworm/main amd64 bsdmainutils all 12.1.8 [5,952 B]
    Get:255 http://deb.debian.org/debian bookworm/main amd64 dbus-user-session amd64 1.14.10-1~deb12u1 [78.1 kB]
    Get:256 http://deb.debian.org/debian bookworm/main amd64 libusb-1.0-0 amd64 2:1.0.26-1 [62.6 kB]
    Get:257 http://deb.debian.org/debian bookworm/main amd64 discover-data all 2.2013.01.13 [389 kB]
    Get:258 http://deb.debian.org/debian bookworm/main amd64 discover amd64 2.1.2-10 [43.2 kB]
    Get:259 http://deb.debian.org/debian bookworm/main amd64 libdiscover2 amd64 2.1.2-10 [92.3 kB]
    Get:260 http://deb.debian.org/debian bookworm/main amd64 eject amd64 2.38.1-5+b1 [48.0 kB]
    Get:261 http://deb.debian.org/debian bookworm/main amd64 gdbm-l10n all 1.23-3 [89.0 kB]
    Get:262 http://deb.debian.org/debian-security bookworm-security/main amd64 grub-pc amd64 2.06-13+deb12u1 [137 kB]
    Get:263 http://deb.debian.org/debian-security bookworm-security/main amd64 grub2-common amd64 2.06-13+deb12u1 [614 kB]
    Get:264 http://deb.debian.org/debian-security bookworm-security/main amd64 grub-pc-bin amd64 2.06-13+deb12u1 [997 kB]
    Get:265 http://deb.debian.org/debian bookworm/main amd64 libpng16-16 amd64 1.6.39-2 [276 kB]
    Get:266 http://deb.debian.org/debian bookworm/main amd64 libfreetype6 amd64 2.12.1+dfsg-5 [399 kB]
    Get:267 http://deb.debian.org/debian bookworm/main amd64 libfuse2 amd64 2.9.9-6+b1 [119 kB]
    Get:268 http://deb.debian.org/debian-security bookworm-security/main amd64 grub-common amd64 2.06-13+deb12u1 [2,709 kB]
    Get:269 http://deb.debian.org/debian bookworm/main amd64 installation-report all 2.89 [8,324 B]
    Get:270 http://deb.debian.org/debian bookworm/main amd64 libestr0 amd64 0.1.11-1 [9,204 B]
    Get:271 http://deb.debian.org/debian bookworm/main amd64 libfastjson4 amd64 1.2304.0-1 [28.9 kB]
    Get:272 http://deb.debian.org/debian bookworm/main amd64 libldap-common all 2.5.13+dfsg-5 [29.3 kB]
    Get:273 http://deb.debian.org/debian bookworm/main amd64 liblognorm5 amd64 2.0.6-4 [67.2 kB]
    Get:274 http://deb.debian.org/debian bookworm/main amd64 libss2 amd64 1.47.0-2 [24.5 kB]
    Get:275 http://deb.debian.org/debian-security bookworm-security/main amd64 libx11-data all 2:1.8.4-2+deb12u2 [292 kB]
    Get:276 http://deb.debian.org/debian bookworm/main amd64 libxcb1 amd64 1.15-1 [144 kB]
    Get:277 http://deb.debian.org/debian-security bookworm-security/main amd64 libx11-6 amd64 2:1.8.4-2+deb12u2 [760 kB]
    Get:278 http://deb.debian.org/debian bookworm/main amd64 libxext6 amd64 2:1.3.4-1+b1 [52.9 kB]
    Get:279 http://deb.debian.org/debian bookworm/main amd64 libxmuu1 amd64 2:1.1.3-3 [23.9 kB]
    Get:280 http://deb.debian.org/debian bookworm/main amd64 linux-image-6.1.0-13-amd64 amd64 6.1.55-1 [68.7 MB]
    Get:281 http://deb.debian.org/debian bookworm/main amd64 linux-image-amd64 amd64 6.1.55-1 [1,480 B]
    Get:282 http://deb.debian.org/debian bookworm/main amd64 mailcap all 3.70+nmu1 [32.0 kB]
    Get:283 http://deb.debian.org/debian bookworm/main amd64 os-prober amd64 1.81 [30.9 kB]
    Get:284 http://deb.debian.org/debian bookworm/main amd64 rsyslog amd64 8.2302.0-1 [723 kB]
    Get:285 http://deb.debian.org/debian bookworm/main amd64 usb.ids all 2023.05.17-0+deb12u1 [207 kB]
    Get:286 http://deb.debian.org/debian bookworm/main amd64 usbutils amd64 1:014-1 [79.7 kB]
    Get:287 http://deb.debian.org/debian bookworm/main amd64 xauth amd64 1:1.1.2-1 [36.0 kB]
    Get:288 http://deb.debian.org/debian bookworm/main amd64 zstd amd64 1.5.4+dfsg2-5 [701 kB]
    Fetched 164 MB in 3s (64.7 MB/s)
    Extracting templates from packages: 100%
    Preconfiguring packages ...
    (Reading database ... 30636 files and directories currently installed.)
    Preparing to unpack .../base-files_12.4+deb12u2_amd64.deb ...
    Unpacking base-files (12.4+deb12u2) over (11.1+deb11u8) ...
    Setting up base-files (12.4+deb12u2) ...
    Installing new version of config file /etc/debian_version ...
    Installing new version of config file /etc/issue ...
    Installing new version of config file /etc/issue.net ...
    (Reading database ... 30636 files and directories currently installed.)
    Preparing to unpack .../libc-l10n_2.36-9+deb12u3_all.deb ...
    Unpacking libc-l10n (2.36-9+deb12u3) over (2.31-13+deb11u7) ...
    Preparing to unpack .../locales_2.36-9+deb12u3_all.deb ...
    Unpacking locales (2.36-9+deb12u3) over (2.31-13+deb11u7) ...
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    Checking for services that may need to be restarted...
    Checking init scripts...
    Unpacking libc6:amd64 (2.36-9+deb12u3) over (2.31-13+deb11u7) ...
    Setting up libc6:amd64 (2.36-9+deb12u3) ...
    Checking for services that may need to be restarted...
    Checking init scripts...

    Restarting services possibly affected by the upgrade:
      ssh: restarting...done.
      cron: restarting...done.

    Services restarted successfully.
    (Reading database ... 30624 files and directories currently installed.)
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    Unpacking libc-bin (2.36-9+deb12u3) over (2.31-13+deb11u7) ...
    Setting up libc-bin (2.36-9+deb12u3) ...
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    Preparing to unpack .../perl_5.36.0-7_amd64.deb ...
    Unpacking perl (5.36.0-7) over (5.32.1-4+deb11u2) ...
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    Unpacking perl-modules-5.36 (5.36.0-7) ...
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    Unpacking libgdbm6:amd64 (1.23-3) over (1.19-2) ...
    Selecting previously unselected package libperl5.36:amd64.
    Preparing to unpack .../libperl5.36_5.36.0-7_amd64.deb ...
    Unpacking libperl5.36:amd64 (5.36.0-7) ...
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    Unpacking perl-base (5.36.0-7) over (5.32.1-4+deb11u2) ...
    Setting up perl-base (5.36.0-7) ...
    (Reading database ... 32551 files and directories currently installed.)
    Preparing to unpack .../liblocale-gettext-perl_1.07-5_amd64.deb ...
    Unpacking liblocale-gettext-perl (1.07-5) over (1.07-4+b1) ...
    Preparing to unpack .../libtext-iconv-perl_1.7-8_amd64.deb ...
    Unpacking libtext-iconv-perl:amd64 (1.7-8) over (1.7-7+b1) ...
    Preparing to unpack .../libtext-charwidth-perl_0.04-11_amd64.deb ...
    Unpacking libtext-charwidth-perl:amd64 (0.04-11) over (0.04-10+b1) ...
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    Unpacking bzip2 (1.0.8-5+b1) over (1.0.8-4) ...
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    Unpacking libbz2-1.0:amd64 (1.0.8-5+b1) over (1.0.8-4) ...
    Setting up libbz2-1.0:amd64 (1.0.8-5+b1) ...
    (Reading database ... 32550 files and directories currently installed.)
    Preparing to unpack .../libaudit-common_1%3a3.0.9-1_all.deb ...
    Unpacking libaudit-common (1:3.0.9-1) over (1:3.0-2) ...
    Setting up libaudit-common (1:3.0.9-1) ...
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    Unpacking libcap-ng0:amd64 (0.8.3-1+b3) over (0.7.9-2.2+b1) ...
    Setting up libcap-ng0:amd64 (0.8.3-1+b3) ...
    (Reading database ... 32552 files and directories currently installed.)
    Preparing to unpack .../libaudit1_1%3a3.0.9-1_amd64.deb ...
    Unpacking libaudit1:amd64 (1:3.0.9-1) over (1:3.0-2) ...
    Setting up libaudit1:amd64 (1:3.0.9-1) ...
    (Reading database ... 32552 files and directories currently installed.)
    Preparing to unpack .../libpam0g_1.5.2-6+deb12u1_amd64.deb ...
    Unpacking libpam0g:amd64 (1.5.2-6+deb12u1) over (1.4.0-9+deb11u1) ...
    Setting up libpam0g:amd64 (1.5.2-6+deb12u1) ...
    (Reading database ... 32552 files and directories currently installed.)
    Preparing to unpack .../libcrypt1_1%3a4.4.33-2_amd64.deb ...
    Unpacking libcrypt1:amd64 (1:4.4.33-2) over (1:4.4.18-4) ...
    Setting up libcrypt1:amd64 (1:4.4.33-2) ...
    (Reading database ... 32552 files and directories currently installed.)
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    Unpacking libdb5.3:amd64 (5.3.28+dfsg2-1) over (5.3.28+dfsg1-0.8) ...
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    dpkg: cron: dependency problems, but removing anyway as you requested:
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    Installing new version of config file /etc/apparmor.d/abstractions/mesa ...
    Installing new version of config file /etc/apparmor.d/abstractions/mir ...
    Installing new version of config file /etc/apparmor.d/abstractions/mozc ...
    Installing new version of config file /etc/apparmor.d/abstractions/mysql ...
    Installing new version of config file /etc/apparmor.d/abstractions/nameservice ...
    Installing new version of config file /etc/apparmor.d/abstractions/nis ...
    Installing new version of config file /etc/apparmor.d/abstractions/nvidia ...
    Installing new version of config file /etc/apparmor.d/abstractions/opencl ...
    Installing new version of config file /etc/apparmor.d/abstractions/opencl-common ...
    Installing new version of config file /etc/apparmor.d/abstractions/opencl-intel ...
    Installing new version of config file /etc/apparmor.d/abstractions/opencl-mesa ...
    Installing new version of config file /etc/apparmor.d/abstractions/opencl-nvidia ...
    Installing new version of config file /etc/apparmor.d/abstractions/opencl-pocl ...
    Installing new version of config file /etc/apparmor.d/abstractions/openssl ...
    Installing new version of config file /etc/apparmor.d/abstractions/orbit2 ...
    Installing new version of config file /etc/apparmor.d/abstractions/p11-kit ...
    Installing new version of config file /etc/apparmor.d/abstractions/perl ...
    Installing new version of config file /etc/apparmor.d/abstractions/php ...
    Installing new version of config file /etc/apparmor.d/abstractions/php5 ...
    Installing new version of config file /etc/apparmor.d/abstractions/postfix-common ...
    Installing new version of config file /etc/apparmor.d/abstractions/private-files ...
    Installing new version of config file /etc/apparmor.d/abstractions/private-files-strict ...
    Installing new version of config file /etc/apparmor.d/abstractions/python ...
    Installing new version of config file /etc/apparmor.d/abstractions/qt5 ...
    Installing new version of config file /etc/apparmor.d/abstractions/qt5-compose-cache-write ...
    Installing new version of config file /etc/apparmor.d/abstractions/qt5-settings-write ...
    Installing new version of config file /etc/apparmor.d/abstractions/recent-documents-write ...
    Installing new version of config file /etc/apparmor.d/abstractions/ruby ...
    Installing new version of config file /etc/apparmor.d/abstractions/samba ...
    Installing new version of config file /etc/apparmor.d/abstractions/smbpass ...
    Installing new version of config file /etc/apparmor.d/abstractions/ssl_certs ...
    Installing new version of config file /etc/apparmor.d/abstractions/ssl_keys ...
    Installing new version of config file /etc/apparmor.d/abstractions/svn-repositories ...
    Installing new version of config file /etc/apparmor.d/abstractions/ubuntu-bittorrent-clients ...
    Installing new version of config file /etc/apparmor.d/abstractions/ubuntu-browsers ...
    Installing new version of config file /etc/apparmor.d/abstractions/ubuntu-browsers.d/java ...
    Installing new version of config file /etc/apparmor.d/abstractions/ubuntu-browsers.d/kde ...
    Installing new version of config file /etc/apparmor.d/abstractions/ubuntu-browsers.d/mailto ...
    Installing new version of config file /etc/apparmor.d/abstractions/ubuntu-browsers.d/multimedia ...
    Installing new version of config file /etc/apparmor.d/abstractions/ubuntu-browsers.d/plugins-common ...
    Installing new version of config file /etc/apparmor.d/abstractions/ubuntu-browsers.d/productivity ...
    Installing new version of config file /etc/apparmor.d/abstractions/ubuntu-browsers.d/text-editors ...
    Installing new version of config file /etc/apparmor.d/abstractions/ubuntu-browsers.d/ubuntu-integration ...
    Installing new version of config file /etc/apparmor.d/abstractions/ubuntu-browsers.d/ubuntu-integration-xul ...
    Installing new version of config file /etc/apparmor.d/abstractions/ubuntu-browsers.d/user-files ...
    Installing new version of config file /etc/apparmor.d/abstractions/ubuntu-console-browsers ...
    Installing new version of config file /etc/apparmor.d/abstractions/ubuntu-console-email ...
    Installing new version of config file /etc/apparmor.d/abstractions/ubuntu-email ...
    Installing new version of config file /etc/apparmor.d/abstractions/ubuntu-feed-readers ...
    Installing new version of config file /etc/apparmor.d/abstractions/ubuntu-gnome-terminal ...
    Installing new version of config file /etc/apparmor.d/abstractions/ubuntu-helpers ...
    Installing new version of config file /etc/apparmor.d/abstractions/ubuntu-konsole ...
    Installing new version of config file /etc/apparmor.d/abstractions/ubuntu-media-players ...
    Installing new version of config file /etc/apparmor.d/abstractions/ubuntu-unity7-base ...
    Installing new version of config file /etc/apparmor.d/abstractions/ubuntu-unity7-launcher ...
    Installing new version of config file /etc/apparmor.d/abstractions/ubuntu-unity7-messaging ...
    Installing new version of config file /etc/apparmor.d/abstractions/ubuntu-xterm ...
    Installing new version of config file /etc/apparmor.d/abstractions/user-download ...
    Installing new version of config file /etc/apparmor.d/abstractions/user-mail ...
    Installing new version of config file /etc/apparmor.d/abstractions/user-manpages ...
    Installing new version of config file /etc/apparmor.d/abstractions/user-tmp ...
    Installing new version of config file /etc/apparmor.d/abstractions/user-write ...
    Installing new version of config file /etc/apparmor.d/abstractions/video ...
    Installing new version of config file /etc/apparmor.d/abstractions/vulkan ...
    Installing new version of config file /etc/apparmor.d/abstractions/wayland ...
    Installing new version of config file /etc/apparmor.d/abstractions/web-data ...
    Installing new version of config file /etc/apparmor.d/abstractions/winbind ...
    Installing new version of config file /etc/apparmor.d/abstractions/wutmp ...
    Installing new version of config file /etc/apparmor.d/abstractions/xad ...
    Installing new version of config file /etc/apparmor.d/abstractions/xdg-desktop ...
    Installing new version of config file /etc/apparmor.d/abstractions/xdg-open ...
    Installing new version of config file /etc/apparmor.d/local/README ...
    Installing new version of config file /etc/apparmor.d/lsb_release ...
    Installing new version of config file /etc/apparmor.d/nvidia_modprobe ...
    Installing new version of config file /etc/apparmor.d/tunables/apparmorfs ...
    Installing new version of config file /etc/apparmor.d/tunables/global ...
    Installing new version of config file /etc/apparmor.d/tunables/home ...
    Installing new version of config file /etc/apparmor.d/tunables/multiarch ...
    Installing new version of config file /etc/apparmor.d/tunables/xdg-user-dirs ...
    Installing new version of config file /etc/apparmor/parser.conf ...
    Reloading AppArmor profiles
    Setting up busybox (1:1.35.0-4+b3) ...
    Setting up libklibc:amd64 (2.0.12-1) ...
    Setting up vim-common (2:9.0.1378-2) ...
    Installing new version of config file /etc/vim/vimrc ...
    Setting up libslang2:amd64 (2.3.3-3) ...
    Setting up libwrap0:amd64 (7.6.q-32) ...
    Setting up libx11-data (2:1.8.4-2+deb12u2) ...
    Setting up bash-completion (1:2.11-6) ...
    Setting up libiptc0:amd64 (1.8.9-2) ...
    Setting up libncurses6:amd64 (6.4-4) ...
    Setting up libdbus-1-3:amd64 (1.14.10-1~deb12u1) ...
    Setting up xz-utils (5.4.1-0.2) ...
    Setting up libproc2-0:amd64 (2:4.0.2-3) ...
    Setting up bsdmainutils (12.1.8) ...
    Setting up libpng16-16:amd64 (1.6.39-2) ...
    Setting up systemd-timesyncd (252.17-1~deb12u1) ...
    Installing new version of config file /etc/systemd/timesyncd.conf ...
    Setting up udev (252.17-1~deb12u1) ...
    Setting up libss2:amd64 (1.47.0-2) ...
    Setting up usb.ids (2023.05.17-0+deb12u1) ...
    Setting up util-linux (2.38.1-5+b1) ...
    fstrim.timer is a disabled or a static unit not running, not starting it.
    fstrim.service is a disabled or a static unit not running, not starting it.
    Setting up libncursesw6:amd64 (6.4-4) ...
    Setting up libk5crypto3:amd64 (1.20.1-2+deb12u1) ...
    Setting up libxtables12:amd64 (1.8.9-2) ...
    Setting up gdbm-l10n (1.23-3) ...
    Setting up logsave (1.47.0-2) ...
    Setting up libsasl2-2:amd64 (2.1.28+dfsg-10) ...
    Setting up liblognorm5:amd64 (2.0.6-4) ...
    Setting up nano (7.2-1) ...
    Installing new version of config file /etc/nanorc ...
    Setting up libpci3:amd64 (1:3.9.0-4) ...
    Setting up python-apt-common (2.6.0) ...
    Setting up mount (2.38.1-5+b1) ...
    Setting up sensible-utils (0.0.17+nmu1) ...
    Setting up libnfnetlink0:amd64 (1.0.2-2) ...
    Setting up dbus-session-bus-common (1.14.10-1~deb12u1) ...
    Setting up procps (2:4.0.2-3) ...
    Installing new version of config file /etc/init.d/procps ...
    Installing new version of config file /etc/sysctl.d/README.sysctl ...
    Setting up libx11-6:amd64 (2:1.8.4-2+deb12u2) ...
    Setting up kbd (2.5.1-1+b1) ...
    Setting up libssh2-1:amd64 (1.10.0-3+b1) ...
    Setting up netbase (6.4) ...
    Installing new version of config file /etc/ethertypes ...
    Installing new version of config file /etc/protocols ...
    Installing new version of config file /etc/rpc ...
    Setting up discover-data (2.2013.01.13) ...
    Setting up isc-dhcp-common (4.4.3-P1-2) ...
    Setting up mawk (1.3.4.20200120-3.1) ...
    Setting up libkrb5-3:amd64 (1.20.1-2+deb12u1) ...
    Setting up libusb-1.0-0:amd64 (2:1.0.26-1) ...
    Setting up dmidecode (3.4-1) ...
    Setting up dbus-system-bus-common (1.14.10-1~deb12u1) ...
    Setting up libfido2-1:amd64 (1.12.0-2+b1) ...
    Setting up klibc-utils (2.0.12-1) ...
    Setting up openssl (3.0.11-1~deb12u2) ...
    Installing new version of config file /etc/ssl/openssl.cnf ...
    Setting up libbsd0:amd64 (0.11.7-2) ...
    Setting up mailcap (3.70+nmu1) ...
    Setting up libelf1:amd64 (0.188-2.1) ...
    Setting up iputils-ping (3:20221126-1) ...
    Setting up readline-common (8.2-1.3) ...
    Setting up zstd (1.5.4+dfsg2-5) ...
    Setting up libxmuu1:amd64 (2:1.1.3-3) ...
    Setting up dbus-bin (1.14.10-1~deb12u1) ...
    Setting up liblocale-gettext-perl (1.07-5) ...
    Setting up libbpf1:amd64 (1:1.1.0-1) ...
    Setting up libpopt0:amd64 (1.19+dfsg-1) ...
    Setting up ncurses-term (6.4-4) ...
    Setting up logrotate (3.21.0-1) ...
    logrotate.service is a disabled or a static unit not running, not starting it.
    Setting up libnewt0.52:amd64 (0.52.23-1+b1) ...
    Setting up libdiscover2 (2.1.2-10) ...
    Setting up libedit2:amd64 (3.1-20221030-2) ...
    Setting up libreadline8:amd64 (8.2-1.3) ...
    Setting up cron (3.0pl1-162) ...
    Setting up rsyslog (8.2302.0-1) ...
    Installing new version of config file /etc/logrotate.d/rsyslog ...
    Installing new version of config file /etc/rsyslog.conf ...
    Removing obsolete conffile /etc/init.d/rsyslog ...
    Setting up libxext6:amd64 (2:1.3.4-1+b1) ...
    Setting up debconf-i18n (1.5.82) ...
    Setting up e2fsprogs (1.47.0-2) ...
    Installing new version of config file /etc/mke2fs.conf ...
    update-initramfs: deferring update (trigger activated)
    e2scrub_all.service is a disabled or a static unit not running, not starting it.
    Setting up dbus-daemon (1.14.10-1~deb12u1) ...
    Setting up vim-tiny (2:9.0.1378-2) ...
    Installing new version of config file /etc/vim/vimrc.tiny ...
    update-alternatives: updating alternative /usr/bin/vim.tiny because link group ex has changed slave links
    update-alternatives: updating alternative /usr/bin/vim.tiny because link group vi has changed slave links
    update-alternatives: updating alternative /usr/bin/vim.tiny because link group view has changed slave links
    Setting up usbutils (1:014-1) ...
    Setting up libldap-2.5-0:amd64 (2.5.13+dfsg-5) ...
    Setting up fdisk (2.38.1-5+b1) ...
    Setting up ca-certificates (20230311) ...
    Updating certificates in /etc/ssl/certs...
    rehash: warning: skipping ca-certificates.crt,it does not contain exactly one certificate or CRL
    26 added, 15 removed; done.
    Setting up libfreetype6:amd64 (2.12.1+dfsg-5) ...
    Setting up dbus (1.14.10-1~deb12u1) ...
    A reboot is required to replace the running dbus-daemon.
    Please reboot the system when convenient.
    dbus.service is a disabled or a static unit, not starting it.
    Setting up libgssapi-krb5-2:amd64 (1.20.1-2+deb12u1) ...
    Setting up ucf (3.0043+nmu1) ...
    Setting up pciutils (1:3.9.0-4) ...
    Setting up whiptail (0.52.23-1+b1) ...
    Setting up xauth (1:1.1.2-1) ...
    Setting up libnetfilter-conntrack3:amd64 (1.0.9-3) ...
    Setting up libpam-systemd:amd64 (252.17-1~deb12u1) ...
    Setting up keyboard-configuration (1.221) ...
    Setting up discover (2.1.2-10) ...
    Setting up initramfs-tools-core (0.142) ...
    Installing new version of config file /etc/initramfs-tools/initramfs.conf ...
    Setting up libtirpc3:amd64 (1.3.3+ds-1) ...
    Setting up initramfs-tools (0.142) ...
    update-initramfs: deferring update (trigger activated)
    Setting up iptables (1.8.9-2) ...
    Setting up iproute2 (6.1.0-3) ...
    Installing new version of config file /etc/iproute2/rt_protos ...
    Setting up openssh-client (1:9.2p1-2+deb12u1) ...
    Setting up libpython3.11-stdlib:amd64 (3.11.2-6) ...
    Setting up isc-dhcp-client (4.4.3-P1-2) ...
    Setting up libcurl3-gnutls:amd64 (7.88.1-10+deb12u4) ...
    Setting up grub-common (2.06-13+deb12u1) ...
    Installing new version of config file /etc/grub.d/30_os-prober ...
    Setting up dbus-user-session (1.14.10-1~deb12u1) ...
    Setting up os-prober (1.81) ...
    Setting up ifupdown (0.8.41) ...
    Installing new version of config file /etc/init.d/networking ...
    Setting up linux-image-6.1.0-13-amd64 (6.1.55-1) ...
    I: /vmlinuz.old is now a symlink to boot/vmlinuz-5.10.0-26-amd64
    I: /initrd.img.old is now a symlink to boot/initrd.img-5.10.0-26-amd64
    I: /vmlinuz is now a symlink to boot/vmlinuz-6.1.0-13-amd64
    I: /initrd.img is now a symlink to boot/initrd.img-6.1.0-13-amd64
    /etc/kernel/postinst.d/initramfs-tools:
    update-initramfs: Generating /boot/initrd.img-6.1.0-13-amd64
    W: initramfs-tools configuration sets RESUME=UUID=41927fad-bbf7-4119-9909-d606ab124ab6
    W: but no matching swap device is available.
    /etc/kernel/postinst.d/zz-update-grub:
    Generating grub configuration file ...
    Found linux image: /boot/vmlinuz-6.1.0-13-amd64
    Found initrd image: /boot/initrd.img-6.1.0-13-amd64
    Found linux image: /boot/vmlinuz-5.10.0-26-amd64
    Found initrd image: /boot/initrd.img-5.10.0-26-amd64
    Found linux image: /boot/vmlinuz-4.19.0-23-amd64
    Found initrd image: /boot/initrd.img-4.19.0-23-amd64
    Warning: os-prober will not be executed to detect other bootable partitions.
    Systems on them will not be added to the GRUB boot configuration.
    Check GRUB_DISABLE_OS_PROBER documentation entry.
    done
    Setting up console-setup-linux (1.221) ...
    Installing new version of config file /etc/console-setup/compose.ISO-8859-1.inc ...
    Installing new version of config file /etc/console-setup/compose.ISO-8859-13.inc ...
    Installing new version of config file /etc/console-setup/compose.ISO-8859-14.inc ...
    Installing new version of config file /etc/console-setup/compose.ISO-8859-15.inc ...
    Installing new version of config file /etc/console-setup/compose.ISO-8859-2.inc ...
    Installing new version of config file /etc/console-setup/compose.ISO-8859-3.inc ...
    Installing new version of config file /etc/console-setup/compose.ISO-8859-4.inc ...
    Installing new version of config file /etc/console-setup/compose.ISO-8859-7.inc ...
    Installing new version of config file /etc/console-setup/compose.ISO-8859-9.inc ...
    Installing new version of config file /etc/console-setup/compose.KOI8-R.inc ...
    Installing new version of config file /etc/console-setup/compose.KOI8-U.inc ...
    Installing new version of config file /etc/console-setup/compose.VISCII.inc ...
    Installing new version of config file /etc/init.d/console-setup.sh ...
    Installing new version of config file /etc/init.d/keyboard-setup.sh ...
    Setting up libpython3-stdlib:amd64 (3.11.2-1+b1) ...
    Setting up openssh-sftp-server (1:9.2p1-2+deb12u1) ...
    Setting up python3.11 (3.11.2-6) ...
    Setting up console-setup (1.221) ...
    Setting up openssh-server (1:9.2p1-2+deb12u1) ...
    Installing new version of config file /etc/init.d/ssh ...
    Installing new version of config file /etc/ssh/moduli ...
    rescue-ssh.target is a disabled or a static unit not running, not starting it.
    ssh.socket is a disabled or a static unit not running, not starting it.
    Setting up grub2-common (2.06-13+deb12u1) ...
    Setting up python3 (3.11.2-1+b1) ...
    running python rtupdate hooks for python3.11...
    running python post-rtupdate hooks for python3.11...
    Setting up linux-image-amd64 (6.1.55-1) ...
    Setting up grub-pc-bin (2.06-13+deb12u1) ...
    Setting up grub-pc (2.06-13+deb12u1) ...
    Replacing config file /etc/default/grub with new version
    grub-pc: Running grub-install ...
    Installing for i386-pc platform.
    Installation finished. No error reported.
      grub-install success for /dev/vda
    Generating grub configuration file ...
    Found linux image: /boot/vmlinuz-6.1.0-13-amd64
    Found initrd image: /boot/initrd.img-6.1.0-13-amd64
    Found linux image: /boot/vmlinuz-5.10.0-26-amd64
    Found initrd image: /boot/initrd.img-5.10.0-26-amd64
    Found linux image: /boot/vmlinuz-4.19.0-23-amd64
    Found initrd image: /boot/initrd.img-4.19.0-23-amd64
    Warning: os-prober will not be executed to detect other bootable partitions.
    Systems on them will not be added to the GRUB boot configuration.
    Check GRUB_DISABLE_OS_PROBER documentation entry.
    done
    Setting up python3-six (1.16.0-4) ...
    Setting up python3-pycurl (7.45.2-3) ...
    Setting up python3-pyparsing (3.0.9-1) ...
    Setting up python3-certifi (2022.9.24-1) ...
    Setting up python3-idna (3.3-1) ...
    Setting up python3-urllib3 (1.26.12-1) ...
    Setting up python3-httplib2 (0.20.4-3) ...
    Setting up python3-pkg-resources (66.1.1-1) ...
    Setting up python3-apt (2.6.0) ...
    Setting up python3-charset-normalizer (3.0.1-2) ...
    Setting up python3-chardet (5.1.0+dfsg-2) ...
    Setting up python3-debian (0.1.49) ...
    Setting up python3-requests (2.28.1+dfsg-1) ...
    Setting up python3-pysimplesoap (1.16.2-5) ...
    Setting up python3-debianbts (4.0.1) ...
    Setting up python3-reportbug (12.0.0) ...
    Setting up reportbug (12.0.0) ...
    Installing new version of config file /etc/reportbug.conf ...
    Setting up tasksel (3.73) ...
    Setting up tasksel-data (3.73) ...
    Processing triggers for debianutils (5.7-0.5~deb12u1) ...
    Processing triggers for libc-bin (2.36-9+deb12u3) ...
    Processing triggers for systemd (252.17-1~deb12u1) ...
    Processing triggers for ca-certificates (20230311) ...
    Updating certificates in /etc/ssl/certs...
    0 added, 0 removed; done.
    Running hooks in /etc/ca-certificates/update.d...
    done.
    Processing triggers for initramfs-tools (0.142) ...
    update-initramfs: Generating /boot/initrd.img-6.1.0-13-amd64
    W: initramfs-tools configuration sets RESUME=UUID=41927fad-bbf7-4119-9909-d606ab124ab6
    W: but no matching swap device is available.
     

     


     

    Now let's try apt update

    apt update
    Hit:1 http://deb.debian.org/debian bookworm InRelease
    Hit:2 http://deb.debian.org/debian bookworm-updates InRelease
    Get:3 http://deb.debian.org/debian-security bookworm-security InRelease [48.0 kB]
    Get:4 http://deb.debian.org/debian-security bookworm-security/main amd64 Packages [106 kB]
    Get:5 http://deb.debian.org/debian-security bookworm-security/main Translation-en [64.1 kB]
    Fetched 170 kB in 1s (337 kB/s)                                  
    Reading package lists... Done
    Building dependency tree       
    Reading state information... Done
    252 packages can be upgraded. Run 'apt list --upgradable' to see them.

     

     

    Warning DO NOT Upgrade To Debian 12 if you are not running Debian 11.

    Here is what happens if going from Debian 10 to 12, and you will have a broken OS if you do below.

    apt dist-upgrade


    Reading package lists... Done
    Building dependency tree       
    Reading state information... Done
    Calculating upgrade... Done
    The following packages were automatically installed and are no longer required:
      bsdmainutils libldap-2.4-2 libmpdec2 libpython3.7-minimal libpython3.7-stdlib libreadline7 libusb-0.1-4 python3.7 python3.7-minimal usb.ids
    Use 'apt autoremove' to remove them.
    The following packages will be REMOVED:
      libsemanage1
    The following NEW packages will be installed:
      bsdextrautils cron-daemon-common dbus-bin dbus-daemon dbus-session-bus-common dbus-system-bus-common dbus-user-session distro-info-data gcc-12-base libapt-pkg6.0 libbpf1 libbrotli1 libcbor0.8 libcrypt1
      libffi8 libfido2-1 libfile-find-rule-perl libgcc-s1 libgdbm-compat4 libgdbm6 libhogweed6 libip4tc2 libip6tc2 libjson-c5 libldap-2.5-0 libmd0 libnettle8 libnsl2 libnumber-compare-perl libperl5.36
      libproc2-0 libpython3.11-minimal libpython3.11-stdlib libreadline8 libsemanage2 libsepol2 libssl3 libsystemd-shared libtext-glob-perl libtirpc-common libtirpc3 libxxhash0 linux-image-6.1.0-13-amd64
      logsave mailcap media-types ncal pci.ids perl perl-modules-5.36 python3-charset-normalizer python3-pyparsing python3.11 python3.11-minimal runit-helper systemd-timesyncd usrmerge util-linux-extra zstd
    The following packages will be upgraded:
      adduser apparmor apt apt-utils base-files base-passwd bash bash-completion bsdmainutils bsdutils busybox bzip2 ca-certificates console-setup console-setup-linux coreutils cpio cron dash dbus debconf
      debconf-i18n debian-archive-keyring debianutils diffutils dirmngr discover discover-data dmidecode dmsetup dpkg e2fsprogs eject fdisk file findutils firmware-linux-free gdbm-l10n gettext-base gnupg
      gnupg-l10n gnupg-utils gpg gpg-agent gpg-wks-client gpg-wks-server gpgconf gpgsm gpgv grep grub-common grub-pc grub-pc-bin grub2-common gzip hostname ifupdown init init-system-helpers initramfs-tools
      initramfs-tools-core installation-report iproute2 iptables iputils-ping isc-dhcp-client isc-dhcp-common kbd keyboard-configuration klibc-utils kmod less libacl1 libapparmor1 libargon2-1 libassuan0
      libattr1 libaudit-common libaudit1 libblkid1 libbsd0 libbz2-1.0 libc-bin libc-l10n libc6 libcap-ng0 libcap2 libcap2-bin libcom-err2 libcryptsetup12 libcurl3-gnutls libdb5.3 libdbus-1-3 libdebconfclient0
      libdevmapper1.02.1 libdiscover2 libedit2 libefiboot1 libefivar1 libelf1 libestr0 libexpat1 libext2fs2 libfastjson4 libfdisk1 libfreetype6 libfuse2 libgcrypt20 libgmp10 libgnutls30 libgpg-error0
      libgssapi-krb5-2 libidn2-0 libiptc0 libk5crypto3 libkeyutils1 libklibc libkmod2 libkrb5-3 libkrb5support0 libksba8 libldap-common liblocale-gettext-perl liblockfile-bin liblognorm5 liblz4-1 liblzma5
      libmagic-mgc libmagic1 libmnl0 libmount1 libncurses6 libncursesw6 libnetfilter-conntrack3 libnewt0.52 libnfnetlink0 libnftnl11 libnghttp2-14 libnpth0 libnss-systemd libp11-kit0 libpam-modules
      libpam-modules-bin libpam-runtime libpam-systemd libpam0g libpci3 libpcre2-8-0 libpcre3 libpng16-16 libpopt0 libpsl5 libpython3-stdlib librtmp1 libsasl2-2 libsasl2-modules-db libseccomp2 libselinux1
      libsemanage-common libslang2 libsmartcols1 libsqlite3-0 libss2 libssh2-1 libstdc++6 libsystemd0 libtasn1-6 libtext-charwidth-perl libtext-iconv-perl libtext-wrapi18n-perl libtinfo6 libudev1 libunistring2
      libusb-1.0-0 libuuid1 libwrap0 libx11-6 libx11-data libxau6 libxcb1 libxext6 libxmuu1 libxtables12 libzstd1 linux-base linux-image-amd64 locales login logrotate lsb-base manpages mawk mime-support mount
      nano ncurses-base ncurses-bin ncurses-term netbase openssh-client openssh-server openssh-sftp-server openssl os-prober passwd pciutils perl-base pinentry-curses procps python-apt-common python3
      python3-apt python3-certifi python3-chardet python3-debian python3-debianbts python3-httplib2 python3-idna python3-minimal python3-pkg-resources python3-pycurl python3-pysimplesoap python3-reportbug
      python3-requests python3-six python3-urllib3 readline-common reportbug rsyslog sed sensible-utils systemd systemd-sysv sysvinit-utils tar tasksel tasksel-data tzdata ucf udev usb.ids usbutils util-linux
      vim-common vim-tiny wget whiptail xauth xkb-data xxd xz-utils zlib1g
    252 upgraded, 59 newly installed, 1 to remove and 0 not upgraded.
    Need to get 172 MB of archives.
    After this operation, 524 MB of additional disk space will be used.
    Do you want to continue? [Y/n] y
    Get:1 http://deb.debian.org/debian bookworm/main amd64 base-files amd64 12.4+deb12u2 [70.7 kB]
    Get:2 http://deb.debian.org/debian bookworm/main amd64 gcc-12-base amd64 12.2.0-14 [37.5 kB]
    Get:3 http://deb.debian.org/debian-security bookworm-security/main amd64 libc6 amd64 2.36-9+deb12u3 [2,755 kB]
    Get:4 http://deb.debian.org/debian bookworm/main amd64 libgcc-s1 amd64 12.2.0-14 [49.9 kB]
    Get:5 http://deb.debian.org/debian-security bookworm-security/main amd64 libc-l10n all 2.36-9+deb12u3 [674 kB]
    Get:6 http://deb.debian.org/debian-security bookworm-security/main amd64 locales all 2.36-9+deb12u3 [3,904 kB]
    Get:7 http://deb.debian.org/debian bookworm/main amd64 libcbor0.8 amd64 0.8.0-2+b1 [27.4 kB]
    Get:8 http://deb.debian.org/debian-security bookworm-security/main amd64 libssl3 amd64 3.0.11-1~deb12u2 [2,019 kB]
    Get:9 http://deb.debian.org/debian bookworm/main amd64 libfido2-1 amd64 1.12.0-2+b1 [77.2 kB]
    Get:10 http://deb.debian.org/debian bookworm/main amd64 libselinux1 amd64 3.4-1+b6 [73.7 kB]
    Get:11 http://deb.debian.org/debian bookworm/main amd64 openssh-client amd64 1:9.2p1-2+deb12u1 [989 kB]
    Get:12 http://deb.debian.org/debian bookworm/main amd64 runit-helper all 2.15.2 [6,520 B]
    Get:13 http://deb.debian.org/debian bookworm/main amd64 libpam0g amd64 1.5.2-6+deb12u1 [92.0 kB]
    Get:14 http://deb.debian.org/debian bookworm/main amd64 libcrypt1 amd64 1:4.4.33-2 [89.5 kB]
    Get:15 http://deb.debian.org/debian bookworm/main amd64 openssh-server amd64 1:9.2p1-2+deb12u1 [455 kB]
    Get:16 http://deb.debian.org/debian-security bookworm-security/main amd64 libc-bin amd64 2.36-9+deb12u3 [606 kB]
    Get:17 http://deb.debian.org/debian bookworm/main amd64 openssh-sftp-server amd64 1:9.2p1-2+deb12u1 [65.8 kB]
    Get:18 http://deb.debian.org/debian bookworm/main amd64 libaudit-common all 1:3.0.9-1 [10.4 kB]
    Get:19 http://deb.debian.org/debian bookworm/main amd64 libcap-ng0 amd64 0.8.3-1+b3 [17.1 kB]
    Get:20 http://deb.debian.org/debian bookworm/main amd64 libaudit1 amd64 1:3.0.9-1 [46.8 kB]
    Get:21 http://deb.debian.org/debian bookworm/main amd64 libtext-iconv-perl amd64 1.7-8 [14.5 kB]
    Get:22 http://deb.debian.org/debian bookworm/main amd64 libtext-charwidth-perl amd64 0.04-11 [9,496 B]
    Get:23 http://deb.debian.org/debian bookworm/main amd64 perl-base amd64 5.36.0-7 [1,608 kB]
    Get:24 http://deb.debian.org/debian bookworm/main amd64 liblocale-gettext-perl amd64 1.07-5 [15.4 kB]
    Get:25 http://deb.debian.org/debian bookworm/main amd64 libtext-wrapi18n-perl all 0.06-10 [8,808 B]
    Get:26 http://deb.debian.org/debian bookworm/main amd64 debconf-i18n all 1.5.82 [208 kB]
    Get:27 http://deb.debian.org/debian bookworm/main amd64 debconf all 1.5.82 [121 kB]
    Get:28 http://deb.debian.org/debian bookworm/main amd64 libblkid1 amd64 2.38.1-5+b1 [147 kB]
    Get:29 http://deb.debian.org/debian bookworm/main amd64 libpcre2-8-0 amd64 10.42-1 [261 kB]
    Get:30 http://deb.debian.org/debian bookworm/main amd64 libgpg-error0 amd64 1.46-1 [76.9 kB]
    Get:31 http://deb.debian.org/debian bookworm/main amd64 libgcrypt20 amd64 1.10.1-3 [696 kB]
    Get:32 http://deb.debian.org/debian bookworm/main amd64 libzstd1 amd64 1.5.4+dfsg2-5 [290 kB]
    Get:33 http://deb.debian.org/debian bookworm/main amd64 libjson-c5 amd64 0.16-2 [44.1 kB]
    Get:34 http://deb.debian.org/debian bookworm/main amd64 libargon2-1 amd64 0~20171227-0.3+deb12u1 [19.4 kB]
    Get:35 http://deb.debian.org/debian bookworm/main amd64 dmsetup amd64 2:1.02.185-2 [82.0 kB]
    Get:36 http://deb.debian.org/debian bookworm/main amd64 libdevmapper1.02.1 amd64 2:1.02.185-2 [133 kB]
    Get:37 http://deb.debian.org/debian bookworm/main amd64 libuuid1 amd64 2.38.1-5+b1 [28.8 kB]
    Get:38 http://deb.debian.org/debian bookworm/main amd64 libcryptsetup12 amd64 2:2.6.1-4~deb12u1 [223 kB]
    Get:39 http://deb.debian.org/debian bookworm/main amd64 libffi8 amd64 3.4.4-1 [22.9 kB]
    Get:40 http://deb.debian.org/debian bookworm/main amd64 libp11-kit0 amd64 0.24.1-2 [345 kB]
    Get:41 http://deb.debian.org/debian bookworm/main amd64 libip4tc2 amd64 1.8.9-2 [19.0 kB]
    Get:42 http://deb.debian.org/debian bookworm/main amd64 libseccomp2 amd64 2.5.4-1+b3 [46.6 kB]
    Get:43 http://deb.debian.org/debian bookworm/main amd64 libacl1 amd64 2.3.1-3 [31.5 kB]
    Get:44 http://deb.debian.org/debian bookworm/main amd64 libapparmor1 amd64 3.0.8-3 [41.2 kB]
    Get:45 http://deb.debian.org/debian bookworm/main amd64 libcap2 amd64 1:2.66-4 [27.0 kB]
    Get:46 http://deb.debian.org/debian bookworm/main amd64 liblzma5 amd64 5.4.1-0.2 [205 kB]
    Get:47 http://deb.debian.org/debian bookworm/main amd64 kmod amd64 30+20221128-1 [95.2 kB]
    Get:48 http://deb.debian.org/debian bookworm/main amd64 libkmod2 amd64 30+20221128-1 [57.9 kB]
    Get:49 http://deb.debian.org/debian bookworm/main amd64 liblz4-1 amd64 1.9.4-1 [62.9 kB]
    Get:50 http://deb.debian.org/debian bookworm/main amd64 libmount1 amd64 2.38.1-5+b1 [166 kB]
    Get:51 http://deb.debian.org/debian bookworm/main amd64 libsystemd-shared amd64 252.17-1~deb12u1 [1,691 kB]
    Get:52 http://deb.debian.org/debian bookworm/main amd64 less amd64 590-2 [131 kB]
    Get:53 http://deb.debian.org/debian bookworm/main amd64 libudev1 amd64 252.17-1~deb12u1 [108 kB]
    Get:54 http://deb.debian.org/debian bookworm/main amd64 udev amd64 252.17-1~deb12u1 [1,643 kB]
    Get:55 http://deb.debian.org/debian bookworm/main amd64 libnss-systemd amd64 252.17-1~deb12u1 [163 kB]
    Get:56 http://deb.debian.org/debian bookworm/main amd64 libmd0 amd64 1.0.4-2 [29.5 kB]
    Get:57 http://deb.debian.org/debian bookworm/main amd64 dpkg amd64 1.21.22 [1,567 kB]
    Get:58 http://deb.debian.org/debian bookworm/main amd64 xkb-data all 2.35.1-1 [764 kB]
    Get:59 http://deb.debian.org/debian bookworm/main amd64 console-setup-linux all 1.221 [1,882 kB]
    Get:60 http://deb.debian.org/debian bookworm/main amd64 keyboard-configuration all 1.221 [416 kB]
    Get:61 http://deb.debian.org/debian bookworm/main amd64 console-setup all 1.221 [102 kB]
    Get:62 http://deb.debian.org/debian bookworm/main amd64 lsb-base all 11.6 [4,584 B]
    Get:63 http://deb.debian.org/debian bookworm/main amd64 libsmartcols1 amd64 2.38.1-5+b1 [107 kB]
    Get:64 http://deb.debian.org/debian bookworm/main amd64 util-linux-extra amd64 2.38.1-5+b1 [111 kB]
    Get:65 http://deb.debian.org/debian bookworm/main amd64 util-linux amd64 2.38.1-5+b1 [1,177 kB]
    Get:66 http://deb.debian.org/debian bookworm/main amd64 login amd64 1:4.13+dfsg1-1+b1 [616 kB]
    Get:67 http://deb.debian.org/debian bookworm/main amd64 libfdisk1 amd64 2.38.1-5+b1 [194 kB]
    Get:68 http://deb.debian.org/debian bookworm/main amd64 libreadline8 amd64 8.2-1.3 [166 kB]
    Get:69 http://deb.debian.org/debian bookworm/main amd64 fdisk amd64 2.38.1-5+b1 [142 kB]
    Get:70 http://deb.debian.org/debian bookworm/main amd64 perl-modules-5.36 all 5.36.0-7 [2,815 kB]
    Get:71 http://deb.debian.org/debian bookworm/main amd64 libgdbm6 amd64 1.23-3 [72.2 kB]
    Get:72 http://deb.debian.org/debian bookworm/main amd64 libgdbm-compat4 amd64 1.23-3 [48.2 kB]
    Get:73 http://deb.debian.org/debian bookworm/main amd64 libperl5.36 amd64 5.36.0-7 [4,218 kB]
    Get:74 http://deb.debian.org/debian bookworm/main amd64 perl amd64 5.36.0-7 [239 kB]
    Get:75 http://deb.debian.org/debian bookworm/main amd64 libnumber-compare-perl all 0.03-3 [6,332 B]
    Get:76 http://deb.debian.org/debian bookworm/main amd64 libtext-glob-perl all 0.11-3 [7,676 B]
    Get:77 http://deb.debian.org/debian bookworm/main amd64 libfile-find-rule-perl all 0.34-3 [26.6 kB]
    Get:78 http://deb.debian.org/debian bookworm/main amd64 usrmerge all 35 [12.5 kB]
    Get:79 http://deb.debian.org/debian bookworm/main amd64 init-system-helpers all 1.65.2 [49.8 kB]
    Get:80 http://deb.debian.org/debian bookworm/main amd64 sysvinit-utils amd64 3.06-4 [31.0 kB]
    Get:81 http://deb.debian.org/debian bookworm/main amd64 libdbus-1-3 amd64 1.14.10-1~deb12u1 [201 kB]
    Get:82 http://deb.debian.org/debian bookworm/main amd64 dbus amd64 1.14.10-1~deb12u1 [97.4 kB]
    Get:83 http://deb.debian.org/debian bookworm/main amd64 dbus-bin amd64 1.14.10-1~deb12u1 [105 kB]
    Get:84 http://deb.debian.org/debian bookworm/main amd64 dbus-session-bus-common all 1.14.10-1~deb12u1 [78.2 kB]
    Get:85 http://deb.debian.org/debian bookworm/main amd64 dbus-daemon amd64 1.14.10-1~deb12u1 [184 kB]
    Get:86 http://deb.debian.org/debian bookworm/main amd64 dbus-system-bus-common all 1.14.10-1~deb12u1 [79.3 kB]
    Get:87 http://deb.debian.org/debian bookworm/main amd64 libpam-systemd amd64 252.17-1~deb12u1 [224 kB]
    Get:88 http://deb.debian.org/debian bookworm/main amd64 ifupdown amd64 0.8.41 [62.1 kB]
    Get:89 http://deb.debian.org/debian bookworm/main amd64 systemd amd64 252.17-1~deb12u1 [3,029 kB]
    Get:90 http://deb.debian.org/debian bookworm/main amd64 libsystemd0 amd64 252.17-1~deb12u1 [331 kB]
    Get:91 http://deb.debian.org/debian bookworm/main amd64 libncurses6 amd64 6.4-4 [103 kB]
    Get:92 http://deb.debian.org/debian bookworm/main amd64 libtinfo6 amd64 6.4-4 [331 kB]
    Get:93 http://deb.debian.org/debian bookworm/main amd64 libncursesw6 amd64 6.4-4 [134 kB]
    Get:94 http://deb.debian.org/debian bookworm/main amd64 tar amd64 1.34+dfsg-1.2 [836 kB]
    Get:95 http://deb.debian.org/debian bookworm/main amd64 kbd amd64 2.5.1-1+b1 [335 kB]
    Get:96 http://deb.debian.org/debian bookworm/main amd64 bzip2 amd64 1.0.8-5+b1 [49.8 kB]
    Get:97 http://deb.debian.org/debian bookworm/main amd64 libbz2-1.0 amd64 1.0.8-5+b1 [47.3 kB]
    Get:98 http://deb.debian.org/debian bookworm/main amd64 libdb5.3 amd64 5.3.28+dfsg2-1 [697 kB]
    Get:99 http://deb.debian.org/debian bookworm/main amd64 zlib1g amd64 1:1.2.13.dfsg-1 [86.7 kB]
    Get:100 http://deb.debian.org/debian bookworm/main amd64 readline-common all 8.2-1.3 [69.0 kB]
    Get:101 http://deb.debian.org/debian bookworm/main amd64 libexpat1 amd64 2.5.0-1 [99.3 kB]
    Get:102 http://deb.debian.org/debian bookworm/main amd64 libsemanage-common all 3.4-1 [21.6 kB]
    Get:103 http://deb.debian.org/debian bookworm/main amd64 libsepol2 amd64 3.4-2.1 [276 kB]
    Get:104 http://deb.debian.org/debian bookworm/main amd64 libsemanage2 amd64 3.4-1+b5 [89.9 kB]
    Get:105 http://deb.debian.org/debian bookworm/main amd64 passwd amd64 1:4.13+dfsg1-1+b1 [972 kB]
    Get:106 http://deb.debian.org/debian bookworm/main amd64 libpam-modules-bin amd64 1.5.2-6+deb12u1 [75.6 kB]
    Get:107 http://deb.debian.org/debian bookworm/main amd64 libpam-modules amd64 1.5.2-6+deb12u1 [291 kB]
    Get:108 http://deb.debian.org/debian bookworm/main amd64 adduser all 3.134 [183 kB]
    Get:109 http://deb.debian.org/debian bookworm/main amd64 libpam-runtime all 1.5.2-6+deb12u1 [161 kB]
    Get:110 http://deb.debian.org/debian bookworm/main amd64 systemd-sysv amd64 252.17-1~deb12u1 [41.8 kB]
    Get:111 http://deb.debian.org/debian bookworm/main amd64 libelf1 amd64 0.188-2.1 [174 kB]
    Get:112 http://deb.debian.org/debian bookworm/main amd64 libbpf1 amd64 1:1.1.0-1 [145 kB]
    Get:113 http://deb.debian.org/debian bookworm/main amd64 libtirpc-common all 1.3.3+ds-1 [14.0 kB]
    Get:114 http://deb.debian.org/debian bookworm/main amd64 libcom-err2 amd64 1.47.0-2 [19.8 kB]
    Get:115 http://deb.debian.org/debian bookworm/main amd64 libkeyutils1 amd64 1.6.3-2 [8,808 B]
    Get:116 http://deb.debian.org/debian bookworm/main amd64 libgssapi-krb5-2 amd64 1.20.1-2+deb12u1 [134 kB]
    Get:117 http://deb.debian.org/debian bookworm/main amd64 libkrb5-3 amd64 1.20.1-2+deb12u1 [332 kB]
    Get:118 http://deb.debian.org/debian bookworm/main amd64 libk5crypto3 amd64 1.20.1-2+deb12u1 [78.9 kB]
    Get:119 http://deb.debian.org/debian bookworm/main amd64 libkrb5support0 amd64 1.20.1-2+deb12u1 [32.4 kB]
    Get:120 http://deb.debian.org/debian bookworm/main amd64 libtirpc3 amd64 1.3.3+ds-1 [85.2 kB]
    Get:121 http://deb.debian.org/debian bookworm/main amd64 libbsd0 amd64 0.11.7-2 [117 kB]
    Get:122 http://deb.debian.org/debian bookworm/main amd64 libmnl0 amd64 1.0.4-3 [12.5 kB]
    Get:123 http://deb.debian.org/debian bookworm/main amd64 libip6tc2 amd64 1.8.9-2 [19.4 kB]
    Get:124 http://deb.debian.org/debian bookworm/main amd64 netbase all 6.4 [12.8 kB]
    Get:125 http://deb.debian.org/debian bookworm/main amd64 libnfnetlink0 amd64 1.0.2-2 [15.1 kB]
    Get:126 http://deb.debian.org/debian bookworm/main amd64 libnftnl11 amd64 1.2.4-2 [61.6 kB]
    Get:127 http://deb.debian.org/debian bookworm/main amd64 libnetfilter-conntrack3 amd64 1.0.9-3 [40.7 kB]
    Get:128 http://deb.debian.org/debian bookworm/main amd64 libxtables12 amd64 1.8.9-2 [30.8 kB]
    Get:129 http://deb.debian.org/debian bookworm/main amd64 iptables amd64 1.8.9-2 [360 kB]
    Get:130 http://deb.debian.org/debian bookworm/main amd64 libcap2-bin amd64 1:2.66-4 [34.7 kB]
    Get:131 http://deb.debian.org/debian bookworm/main amd64 iproute2 amd64 6.1.0-3 [1,046 kB]
    Get:132 http://deb.debian.org/debian bookworm/main amd64 mount amd64 2.38.1-5+b1 [134 kB]
    Get:133 http://deb.debian.org/debian bookworm/main amd64 libedit2 amd64 3.1-20221030-2 [93.0 kB]
    Get:134 http://deb.debian.org/debian bookworm/main amd64 libproc2-0 amd64 2:4.0.2-3 [62.8 kB]
    Get:135 http://deb.debian.org/debian bookworm/main amd64 procps amd64 2:4.0.2-3 [709 kB]
    Get:136 http://deb.debian.org/debian bookworm/main amd64 sensible-utils all 0.0.17+nmu1 [19.0 kB]
    Get:137 http://deb.debian.org/debian bookworm/main amd64 ucf all 3.0043+nmu1 [55.2 kB]
    Get:138 http://deb.debian.org/debian bookworm/main amd64 libnsl2 amd64 1.3.0-2 [39.5 kB]
    Get:139 http://deb.debian.org/debian bookworm/main amd64 libwrap0 amd64 7.6.q-32 [54.9 kB]
    Get:140 http://deb.debian.org/debian bookworm/main amd64 debianutils amd64 5.7-0.5~deb12u1 [103 kB]
    Get:141 http://deb.debian.org/debian bookworm/main amd64 bash amd64 5.2.15-2+b2 [1,491 kB]
    Get:142 http://deb.debian.org/debian bookworm/main amd64 bsdmainutils all 12.1.8 [5,952 B]
    Get:143 http://deb.debian.org/debian bookworm/main amd64 bsdextrautils amd64 2.38.1-5+b1 [86.6 kB]
    Get:144 http://deb.debian.org/debian bookworm/main amd64 ncal amd64 12.1.8 [19.7 kB]
    Get:145 http://deb.debian.org/debian bookworm/main amd64 bsdutils amd64 1:2.38.1-5+b1 [94.4 kB]
    Get:146 http://deb.debian.org/debian bookworm/main amd64 libgmp10 amd64 2:6.2.1+dfsg1-1.1 [563 kB]
    Get:147 http://deb.debian.org/debian bookworm/main amd64 coreutils amd64 9.1-1 [2,897 kB]
    Get:148 http://deb.debian.org/debian bookworm/main amd64 dash amd64 0.5.12-2 [91.8 kB]
    Get:149 http://deb.debian.org/debian bookworm/main amd64 diffutils amd64 1:3.8-4 [352 kB]
    Get:150 http://deb.debian.org/debian bookworm/main amd64 findutils amd64 4.9.0-4 [636 kB]
    Get:151 http://deb.debian.org/debian bookworm/main amd64 grep amd64 3.8-5 [421 kB]
    Get:152 http://deb.debian.org/debian bookworm/main amd64 gzip amd64 1.12-1 [140 kB]
    Get:153 http://deb.debian.org/debian bookworm/main amd64 hostname amd64 3.23+nmu1 [10.5 kB]
    Get:154 http://deb.debian.org/debian bookworm/main amd64 ncurses-bin amd64 6.4-4 [421 kB]
    Get:155 http://deb.debian.org/debian bookworm/main amd64 sed amd64 4.9-1 [329 kB]
    Get:156 http://deb.debian.org/debian bookworm/main amd64 libstdc++6 amd64 12.2.0-14 [614 kB]
    Get:157 http://deb.debian.org/debian bookworm/main amd64 libxxhash0 amd64 0.8.1-1 [27.6 kB]
    Get:158 http://deb.debian.org/debian bookworm/main amd64 libapt-pkg6.0 amd64 2.6.1 [907 kB]
    Get:159 http://deb.debian.org/debian bookworm/main amd64 libnettle8 amd64 3.8.1-2 [288 kB]
    Get:160 http://deb.debian.org/debian bookworm/main amd64 libhogweed6 amd64 3.8.1-2 [328 kB]
    Get:161 http://deb.debian.org/debian bookworm/main amd64 libtasn1-6 amd64 4.19.0-2 [56.6 kB]
    Get:162 http://deb.debian.org/debian bookworm/main amd64 libunistring2 amd64 1.0-2 [437 kB]
    Get:163 http://deb.debian.org/debian bookworm/main amd64 libidn2-0 amd64 2.3.3-1+b1 [124 kB]
    Get:164 http://deb.debian.org/debian bookworm/main amd64 libgnutls30 amd64 3.7.9-2 [1,403 kB]
    Get:165 http://deb.debian.org/debian bookworm/main amd64 apt amd64 2.6.1 [1,373 kB]
    Get:166 http://deb.debian.org/debian bookworm/main amd64 apt-utils amd64 2.6.1 [309 kB]
    Get:167 http://deb.debian.org/debian bookworm/main amd64 libksba8 amd64 1.6.3-2 [128 kB]
    Get:168 http://deb.debian.org/debian bookworm/main amd64 libassuan0 amd64 2.5.5-5 [48.5 kB]
    Get:169 http://deb.debian.org/debian bookworm/main amd64 gpg-wks-client amd64 2.2.40-1.1 [541 kB]
    Get:170 http://deb.debian.org/debian bookworm/main amd64 dirmngr amd64 2.2.40-1.1 [792 kB]
    Get:171 http://deb.debian.org/debian bookworm/main amd64 gpg-wks-server amd64 2.2.40-1.1 [531 kB]
    Get:172 http://deb.debian.org/debian bookworm/main amd64 gnupg-utils amd64 2.2.40-1.1 [927 kB]
    Get:173 http://deb.debian.org/debian bookworm/main amd64 gpg-agent amd64 2.2.40-1.1 [695 kB]
    Get:174 http://deb.debian.org/debian bookworm/main amd64 gpg amd64 2.2.40-1.1 [949 kB]
    Get:175 http://deb.debian.org/debian bookworm/main amd64 gpgconf amd64 2.2.40-1.1 [564 kB]
    Get:176 http://deb.debian.org/debian bookworm/main amd64 gnupg-l10n all 2.2.40-1.1 [1,093 kB]
    Get:177 http://deb.debian.org/debian bookworm/main amd64 gnupg all 2.2.40-1.1 [846 kB]
    Get:178 http://deb.debian.org/debian bookworm/main amd64 gpgsm amd64 2.2.40-1.1 [671 kB]
    Get:179 http://deb.debian.org/debian bookworm/main amd64 libsqlite3-0 amd64 3.40.1-2 [837 kB]
    Get:180 http://deb.debian.org/debian bookworm/main amd64 pinentry-curses amd64 1.2.1-1 [77.4 kB]
    Get:181 http://deb.debian.org/debian bookworm/main amd64 libnpth0 amd64 1.6-3 [19.0 kB]
    Get:182 http://deb.debian.org/debian bookworm/main amd64 libsasl2-modules-db amd64 2.1.28+dfsg-10 [20.3 kB]
    Get:183 http://deb.debian.org/debian bookworm/main amd64 libsasl2-2 amd64 2.1.28+dfsg-10 [59.7 kB]
    Get:184 http://deb.debian.org/debian bookworm/main amd64 libldap-2.5-0 amd64 2.5.13+dfsg-5 [183 kB]
    Get:185 http://deb.debian.org/debian bookworm/main amd64 gpgv amd64 2.2.40-1.1 [648 kB]
    Get:186 http://deb.debian.org/debian bookworm/main amd64 debian-archive-keyring all 2023.3+deb12u1 [161 kB]
    Get:187 http://deb.debian.org/debian bookworm/main amd64 libdebconfclient0 amd64 0.270 [9,900 B]
    Get:188 http://deb.debian.org/debian bookworm/main amd64 base-passwd amd64 3.6.1 [60.0 kB]
    Get:189 http://deb.debian.org/debian bookworm/main amd64 vim-tiny amd64 2:9.0.1378-2 [720 kB]
    Get:190 http://deb.debian.org/debian bookworm/main amd64 xxd amd64 2:9.0.1378-2 [83.7 kB]
    Get:191 http://deb.debian.org/debian bookworm/main amd64 vim-common all 2:9.0.1378-2 [124 kB]
    Get:192 http://deb.debian.org/debian bookworm/main amd64 ncurses-base all 6.4-4 [261 kB]
    Get:193 http://deb.debian.org/debian bookworm/main amd64 klibc-utils amd64 2.0.12-1 [94.9 kB]
    Get:194 http://deb.debian.org/debian bookworm/main amd64 initramfs-tools-core all 0.142 [105 kB]
    Get:195 http://deb.debian.org/debian bookworm/main amd64 busybox amd64 1:1.35.0-4+b3 [452 kB]
    Get:196 http://deb.debian.org/debian bookworm/main amd64 initramfs-tools all 0.142 [72.9 kB]
    Get:197 http://deb.debian.org/debian bookworm/main amd64 libext2fs2 amd64 1.47.0-2 [205 kB]
    Get:198 http://deb.debian.org/debian bookworm/main amd64 e2fsprogs amd64 1.47.0-2 [571 kB]
    Get:199 http://deb.debian.org/debian bookworm/main amd64 libklibc amd64 2.0.12-1 [44.2 kB]
    Get:200 http://deb.debian.org/debian bookworm/main amd64 cpio amd64 2.13+dfsg-7.1 [245 kB]
    Get:201 http://deb.debian.org/debian bookworm/main amd64 logsave amd64 1.47.0-2 [19.6 kB]
    Get:202 http://deb.debian.org/debian bookworm/main amd64 linux-base all 4.9 [31.8 kB]
    Get:203 http://deb.debian.org/debian bookworm/main amd64 cron-daemon-common all 3.0pl1-162 [12.7 kB]
    Get:204 http://deb.debian.org/debian bookworm/main amd64 cron amd64 3.0pl1-162 [73.1 kB]
    Get:205 http://deb.debian.org/debian bookworm/main amd64 init amd64 1.65.2 [16.8 kB]
    Get:206 http://deb.debian.org/debian bookworm/main amd64 libpython3.11-minimal amd64 3.11.2-6 [813 kB]
    Get:207 http://deb.debian.org/debian bookworm/main amd64 python3.11-minimal amd64 3.11.2-6 [2,064 kB]
    Get:208 http://deb.debian.org/debian bookworm/main amd64 python3-pycurl amd64 7.45.2-3 [67.7 kB]
    Get:209 http://deb.debian.org/debian bookworm/main amd64 python3-apt amd64 2.6.0 [159 kB]
    Get:210 http://deb.debian.org/debian bookworm/main amd64 python3-minimal amd64 3.11.2-1+b1 [26.3 kB]
    Get:211 http://deb.debian.org/debian bookworm/main amd64 python3 amd64 3.11.2-1+b1 [26.3 kB]
    Get:212 http://deb.debian.org/debian bookworm/main amd64 libbrotli1 amd64 1.0.9-2+b6 [275 kB]
    Get:213 http://deb.debian.org/debian-security bookworm-security/main amd64 libnghttp2-14 amd64 1.52.0-1+deb12u1 [72.4 kB]
    Get:214 http://deb.debian.org/debian bookworm/main amd64 libpsl5 amd64 0.21.2-1 [58.7 kB]
    Get:215 http://deb.debian.org/debian bookworm/main amd64 librtmp1 amd64 2.4+20151223.gitfa8646d.1-2+b2 [60.8 kB]
    Get:216 http://deb.debian.org/debian bookworm/main amd64 libssh2-1 amd64 1.10.0-3+b1 [179 kB]
    Get:217 http://deb.debian.org/debian-security bookworm-security/main amd64 libcurl3-gnutls amd64 7.88.1-10+deb12u4 [385 kB]
    Get:218 http://deb.debian.org/debian bookworm/main amd64 python-apt-common all 2.6.0 [64.3 kB]
    Get:219 http://deb.debian.org/debian bookworm/main amd64 distro-info-data all 0.58 [5,848 B]
    Get:220 http://deb.debian.org/debian bookworm/main amd64 mime-support all 3.66 [10.9 kB]
    Get:221 http://deb.debian.org/debian bookworm/main amd64 mailcap all 3.70+nmu1 [32.0 kB]
    Get:222 http://deb.debian.org/debian bookworm/main amd64 media-types all 10.0.0 [26.1 kB]
    Get:223 http://deb.debian.org/debian bookworm/main amd64 libpython3.11-stdlib amd64 3.11.2-6 [1,796 kB]
    Get:224 http://deb.debian.org/debian bookworm/main amd64 python3.11 amd64 3.11.2-6 [572 kB]
    Get:225 http://deb.debian.org/debian bookworm/main amd64 libpython3-stdlib amd64 3.11.2-1+b1 [9,312 B]
    Get:226 http://deb.debian.org/debian bookworm/main amd64 tasksel-data all 3.73 [18.0 kB]
    Get:227 http://deb.debian.org/debian bookworm/main amd64 tasksel all 3.73 [51.2 kB]
    Get:228 http://deb.debian.org/debian bookworm/main amd64 libattr1 amd64 1:2.5.1-4 [22.2 kB]
    Get:229 http://deb.debian.org/debian bookworm/main amd64 libpcre3 amd64 2:8.39-15 [341 kB]
    Get:230 http://deb.debian.org/debian bookworm/main amd64 mawk amd64 1.3.4.20200120-3.1 [119 kB]
    Get:231 http://deb.debian.org/debian bookworm/main amd64 tzdata all 2023c-5 [296 kB]
    Get:232 http://deb.debian.org/debian bookworm/main amd64 dmidecode amd64 3.4-1 [68.8 kB]
    Get:233 http://deb.debian.org/debian bookworm/main amd64 iputils-ping amd64 3:20221126-1 [47.1 kB]
    Get:234 http://deb.debian.org/debian bookworm/main amd64 isc-dhcp-client amd64 4.4.3-P1-2 [1,096 kB]
    Get:235 http://deb.debian.org/debian bookworm/main amd64 isc-dhcp-common amd64 4.4.3-P1-2 [117 kB]
    Get:236 http://deb.debian.org/debian bookworm/main amd64 libpopt0 amd64 1.19+dfsg-1 [43.3 kB]
    Get:237 http://deb.debian.org/debian bookworm/main amd64 logrotate amd64 3.21.0-1 [62.1 kB]
    Get:238 http://deb.debian.org/debian bookworm/main amd64 nano amd64 7.2-1 [689 kB]
    Get:239 http://deb.debian.org/debian bookworm/main amd64 ncurses-term all 6.4-4 [501 kB]
    Get:240 http://deb.debian.org/debian bookworm/main amd64 libslang2 amd64 2.3.3-3 [554 kB]
    Get:241 http://deb.debian.org/debian bookworm/main amd64 libnewt0.52 amd64 0.52.23-1+b1 [59.2 kB]
    Get:242 http://deb.debian.org/debian bookworm/main amd64 whiptail amd64 0.52.23-1+b1 [24.2 kB]
    Get:243 http://deb.debian.org/debian bookworm/main amd64 bash-completion all 1:2.11-6 [234 kB]
    Get:244 http://deb.debian.org/debian-security bookworm-security/main amd64 openssl amd64 3.0.11-1~deb12u2 [1,419 kB]
    Get:245 http://deb.debian.org/debian bookworm/main amd64 ca-certificates all 20230311 [153 kB]
    Get:246 http://deb.debian.org/debian bookworm/main amd64 file amd64 1:5.44-3 [42.5 kB]
    Get:247 http://deb.debian.org/debian bookworm/main amd64 libmagic1 amd64 1:5.44-3 [104 kB]
    Get:248 http://deb.debian.org/debian bookworm/main amd64 libmagic-mgc amd64 1:5.44-3 [305 kB]
    Get:249 http://deb.debian.org/debian bookworm/main amd64 gettext-base amd64 0.21-12 [160 kB]
    Get:250 http://deb.debian.org/debian bookworm/main amd64 liblockfile-bin amd64 1.17-1+b1 [20.8 kB]
    Get:251 http://deb.debian.org/debian bookworm/main amd64 manpages all 6.03-2 [1,332 kB]
    Get:252 http://deb.debian.org/debian bookworm/main amd64 pciutils amd64 1:3.9.0-4 [104 kB]
    Get:253 http://deb.debian.org/debian bookworm/main amd64 pci.ids all 0.0~2023.04.11-1 [243 kB]
    Get:254 http://deb.debian.org/debian bookworm/main amd64 libpci3 amd64 1:3.9.0-4 [67.4 kB]
    Get:255 http://deb.debian.org/debian bookworm/main amd64 reportbug all 12.0.0 [64.5 kB]
    Get:256 http://deb.debian.org/debian bookworm/main amd64 python3-certifi all 2022.9.24-1 [153 kB]
    Get:257 http://deb.debian.org/debian bookworm/main amd64 python3-charset-normalizer all 3.0.1-2 [49.3 kB]
    Get:258 http://deb.debian.org/debian bookworm/main amd64 python3-idna all 3.3-1 [39.4 kB]
    Get:259 http://deb.debian.org/debian bookworm/main amd64 python3-six all 1.16.0-4 [17.5 kB]
    Get:260 http://deb.debian.org/debian bookworm/main amd64 python3-requests all 2.28.1+dfsg-1 [67.9 kB]
    Get:261 http://deb.debian.org/debian bookworm/main amd64 python3-urllib3 all 1.26.12-1 [117 kB]
    Get:262 http://deb.debian.org/debian bookworm/main amd64 python3-pkg-resources all 66.1.1-1 [296 kB]
    Get:263 http://deb.debian.org/debian bookworm/main amd64 python3-chardet all 5.1.0+dfsg-2 [110 kB]
    Get:264 http://deb.debian.org/debian bookworm/main amd64 python3-debian all 0.1.49 [115 kB]
    Get:265 http://deb.debian.org/debian bookworm/main amd64 python3-pyparsing all 3.0.9-1 [138 kB]
    Get:266 http://deb.debian.org/debian bookworm/main amd64 python3-httplib2 all 0.20.4-3 [36.0 kB]
    Get:267 http://deb.debian.org/debian bookworm/main amd64 python3-pysimplesoap all 1.16.2-5 [43.1 kB]
    Get:268 http://deb.debian.org/debian bookworm/main amd64 python3-debianbts all 4.0.1 [12.2 kB]
    Get:269 http://deb.debian.org/debian bookworm/main amd64 python3-reportbug all 12.0.0 [78.9 kB]
    Get:270 http://deb.debian.org/debian bookworm/main amd64 systemd-timesyncd amd64 252.17-1~deb12u1 [62.9 kB]
    Get:271 http://deb.debian.org/debian bookworm/main amd64 wget amd64 1.21.3-1+b2 [984 kB]
    Get:272 http://deb.debian.org/debian bookworm/main amd64 xz-utils amd64 5.4.1-0.2 [471 kB]
    Get:273 http://deb.debian.org/debian bookworm/main amd64 apparmor amd64 3.0.8-3 [616 kB]
    Get:274 http://deb.debian.org/debian bookworm/main amd64 dbus-user-session amd64 1.14.10-1~deb12u1 [78.1 kB]
    Get:275 http://deb.debian.org/debian bookworm/main amd64 libusb-1.0-0 amd64 2:1.0.26-1 [62.6 kB]
    Get:276 http://deb.debian.org/debian bookworm/main amd64 discover-data all 2.2013.01.13 [389 kB]
    Get:277 http://deb.debian.org/debian bookworm/main amd64 discover amd64 2.1.2-10 [43.2 kB]
    Get:278 http://deb.debian.org/debian bookworm/main amd64 libdiscover2 amd64 2.1.2-10 [92.3 kB]
    Get:279 http://deb.debian.org/debian bookworm/main amd64 eject amd64 2.38.1-5+b1 [48.0 kB]
    Get:280 http://deb.debian.org/debian bookworm/main amd64 firmware-linux-free all 20200122-1 [24.2 kB]
    Get:281 http://deb.debian.org/debian bookworm/main amd64 gdbm-l10n all 1.23-3 [89.0 kB]
    Get:282 http://deb.debian.org/debian bookworm/main amd64 libefivar1 amd64 37-6 [50.0 kB]
    Get:283 http://deb.debian.org/debian bookworm/main amd64 libefiboot1 amd64 37-6 [44.1 kB]
    Get:284 http://deb.debian.org/debian-security bookworm-security/main amd64 grub-pc amd64 2.06-13+deb12u1 [137 kB]
    Get:285 http://deb.debian.org/debian-security bookworm-security/main amd64 grub2-common amd64 2.06-13+deb12u1 [614 kB]
    Get:286 http://deb.debian.org/debian-security bookworm-security/main amd64 grub-pc-bin amd64 2.06-13+deb12u1 [997 kB]
    Get:287 http://deb.debian.org/debian bookworm/main amd64 libpng16-16 amd64 1.6.39-2 [276 kB]
    Get:288 http://deb.debian.org/debian bookworm/main amd64 libfreetype6 amd64 2.12.1+dfsg-5 [399 kB]
    Get:289 http://deb.debian.org/debian bookworm/main amd64 libfuse2 amd64 2.9.9-6+b1 [119 kB]
    Get:290 http://deb.debian.org/debian-security bookworm-security/main amd64 grub-common amd64 2.06-13+deb12u1 [2,709 kB]
    Get:291 http://deb.debian.org/debian bookworm/main amd64 installation-report all 2.89 [8,324 B]
    Get:292 http://deb.debian.org/debian bookworm/main amd64 libestr0 amd64 0.1.11-1 [9,204 B]
    Get:293 http://deb.debian.org/debian bookworm/main amd64 libfastjson4 amd64 1.2304.0-1 [28.9 kB]
    Get:294 http://deb.debian.org/debian bookworm/main amd64 libiptc0 amd64 1.8.9-2 [7,032 B]
    Get:295 http://deb.debian.org/debian bookworm/main amd64 libldap-common all 2.5.13+dfsg-5 [29.3 kB]
    Get:296 http://deb.debian.org/debian bookworm/main amd64 liblognorm5 amd64 2.0.6-4 [67.2 kB]
    Get:297 http://deb.debian.org/debian bookworm/main amd64 libss2 amd64 1.47.0-2 [24.5 kB]
    Get:298 http://deb.debian.org/debian-security bookworm-security/main amd64 libx11-data all 2:1.8.4-2+deb12u2 [292 kB]
    Get:299 http://deb.debian.org/debian bookworm/main amd64 libxau6 amd64 1:1.0.9-1 [19.7 kB]
    Get:300 http://deb.debian.org/debian bookworm/main amd64 libxcb1 amd64 1.15-1 [144 kB]
    Get:301 http://deb.debian.org/debian-security bookworm-security/main amd64 libx11-6 amd64 2:1.8.4-2+deb12u2 [760 kB]
    Get:302 http://deb.debian.org/debian bookworm/main amd64 libxext6 amd64 2:1.3.4-1+b1 [52.9 kB]
    Get:303 http://deb.debian.org/debian bookworm/main amd64 libxmuu1 amd64 2:1.1.3-3 [23.9 kB]
    Get:304 http://deb.debian.org/debian bookworm/main amd64 linux-image-6.1.0-13-amd64 amd64 6.1.55-1 [68.7 MB]
    Get:305 http://deb.debian.org/debian bookworm/main amd64 linux-image-amd64 amd64 6.1.55-1 [1,480 B]
    Get:306 http://deb.debian.org/debian bookworm/main amd64 os-prober amd64 1.81 [30.9 kB]
    Get:307 http://deb.debian.org/debian bookworm/main amd64 rsyslog amd64 8.2302.0-1 [723 kB]
    Get:308 http://deb.debian.org/debian bookworm/main amd64 usb.ids all 2023.05.17-0+deb12u1 [207 kB]
    Get:309 http://deb.debian.org/debian bookworm/main amd64 usbutils amd64 1:014-1 [79.7 kB]
    Get:310 http://deb.debian.org/debian bookworm/main amd64 xauth amd64 1:1.1.2-1 [36.0 kB]
    Get:311 http://deb.debian.org/debian bookworm/main amd64 zstd amd64 1.5.4+dfsg2-5 [701 kB]
    Fetched 172 MB in 3s (66.7 MB/s)
    Extracting templates from packages: 100%
    Preconfiguring packages ...
    (Reading database ... 22646 files and directories currently installed.)
    Preparing to unpack .../base-files_12.4+deb12u2_amd64.deb ...
    Unpacking base-files (12.4+deb12u2) over (10.3+deb10u4) ...
    Setting up base-files (12.4+deb12u2) ...
    Installing new version of config file /etc/debian_version ...
    Installing new version of config file /etc/dpkg/origins/debian ...
    Installing new version of config file /etc/issue ...
    Installing new version of config file /etc/issue.net ...
    Updating /etc/profile to current default.
    Updating /root/.profile to current default.
    Selecting previously unselected package gcc-12-base:amd64.
    (Reading database ... 22646 files and directories currently installed.)
    Preparing to unpack .../gcc-12-base_12.2.0-14_amd64.deb ...
    Unpacking gcc-12-base:amd64 (12.2.0-14) ...
    Setting up gcc-12-base:amd64 (12.2.0-14) ...
    (Reading database ... 22651 files and directories currently installed.)
    Preparing to unpack .../locales_2.36-9+deb12u3_all.deb ...
    Unpacking locales (2.36-9+deb12u3) over (2.28-10+deb10u2) ...
    Preparing to unpack .../openssh-server_1%3a9.2p1-2+deb12u1_amd64.deb ...
    Unpacking openssh-server (1:9.2p1-2+deb12u1) over (1:7.9p1-10+deb10u2) ...
    Preparing to unpack .../libc6_2.36-9+deb12u3_amd64.deb ...
    Checking for services that may need to be restarted...
    Checking init scripts...
    Unpacking libc6:amd64 (2.36-9+deb12u3) over (2.28-10+deb10u2) ...
    Selecting previously unselected package libgcc-s1:amd64.
    Preparing to unpack .../libgcc-s1_12.2.0-14_amd64.deb ...
    Unpacking libgcc-s1:amd64 (12.2.0-14) ...
    Replacing files in old package libgcc1:amd64 (1:8.3.0-6) ...
    Setting up libgcc-s1:amd64 (12.2.0-14) ...
    Setting up libc6:amd64 (2.36-9+deb12u3) ...
    /usr/bin/perl: error while loading shared libraries: libcrypt.so.1: cannot open shared object file: No such file or directory
    dpkg: error processing package libc6:amd64 (--configure):
     installed libc6:amd64 package post-installation script subprocess returned error exit status 127
    Errors were encountered while processing:
     libc6:amd64
    E: Sub-process /usr/bin/dpkg returned an error code (1)

     

    We get this error:

    /usr/bin/perl: error while loading shared libraries: libcrypt.so.1: cannot open shared object file: No such file or directory
    dpkg: error processing package libc6:amd64 (--configure):
     installed libc6:amd64 package post-installation script subprocess returned error exit status 127

     

    The issue is that the old Debian uses old keys and Bookworm uses different keys

    See the guide at the top for how to get the correct keys.

    apt update
    Get:1 http://deb.debian.org/debian bookworm InRelease [151 kB]
    Get:2 http://deb.debian.org/debian bookworm-updates InRelease [52.1 kB]
    Get:3 http://deb.debian.org/debian-security bookworm-security InRelease [48.0 kB]
    Err:1 http://deb.debian.org/debian bookworm InRelease
      The following signatures couldn't be verified because the public key is not available: NO_PUBKEY 0E98404D386FA1D9 NO_PUBKEY 6ED0E7B82643E131 NO_PUBKEY F8D2585B8783D481
    Err:2 http://deb.debian.org/debian bookworm-updates InRelease
      The following signatures couldn't be verified because the public key is not available: NO_PUBKEY 0E98404D386FA1D9 NO_PUBKEY 6ED0E7B82643E131
    Err:3 http://deb.debian.org/debian-security bookworm-security InRelease
      The following signatures couldn't be verified because the public key is not available: NO_PUBKEY 54404762BBB6E853 NO_PUBKEY BDE6D2B9216EC7A8
    Reading package lists... Done
    W: GPG error: http://deb.debian.org/debian bookworm InRelease: The following signatures couldn't be verified because the public key is not available: NO_PUBKEY 0E98404D386FA1D9 NO_PUBKEY 6ED0E7B82643E131 NO_PUBKEY F8D2585B8783D481
    E: The repository 'http://deb.debian.org/debian bookworm InRelease' is not signed.
    N: Updating from such a repository can't be done securely, and is therefore disabled by default.
    N: See apt-secure(8) manpage for repository creation and user configuration details.
    W: GPG error: http://deb.debian.org/debian bookworm-updates InRelease: The following signatures couldn't be verified because the public key is not available: NO_PUBKEY 0E98404D386FA1D9 NO_PUBKEY 6ED0E7B82643E131
    E: The repository 'http://deb.debian.org/debian bookworm-updates InRelease' is not signed.
    N: Updating from such a repository can't be done securely, and is therefore disabled by default.
    N: See apt-secure(8) manpage for repository creation and user configuration details.
    W: GPG error: http://deb.debian.org/debian-security bookworm-security InRelease: The following signatures couldn't be verified because the public key is not available: NO_PUBKEY 54404762BBB6E853 NO_PUBKEY BDE6D2B9216EC7A8
    E: The repository 'http://deb.debian.org/debian-security bookworm-security InRelease' is not signed.
    N: Updating from such a repository can't be done securely, and is therefore disabled by default.
    N: See apt-secure(8) manpage for repository creation and user configuration details.

     

     


  • Linux dhcp dhclient Mint Redhat Ubuntu Debian How To Use Local Domain DNS Server Instead of ISPs


    If you are running a local DNS server like named/bind and don't want to use the ISP supplied DNS servers that are announced via a DHCP request (using dhclient) then the solution is simple.

    The reason should be obvious, but normally running your own DNS server will provide a more reliable, and fast DNS response and you won't have to worry about filtering as much (unless your upstream filters or proxies outgoing DNS requests).

    Edit /etc/dhcp/dhclient.conf

    Add the following line, or in many cases you can find the line is there but just commented out with a #.  Uncomment it or add the line like below:

    prepend domain-name-servers 127.0.0.1;

    Need more DNS servers just add a comma after:

    prepend domain-name-servers 127.0.0.1, 192.168.10.80;

    Now when checking /etc/resolv.conf, you should see that the first DNS server is 127.0.0.1 and then whatever your ISP or LAN provided you with.

    What if you want to define the ONLY DNS servers and not use anything from the ISP/DHCP Server

    Instead of the "prepend" option, we can use "supersede" which will completely ignore all the DNS servers provided from the DHCP server. 

    Add the following line, or in many cases you can find the line is there but just commented out with a #.  Uncomment it or add the line like below:

    supersede domain-name-servers 127.0.0.1;

    Just like the prepend option you can specify multiple DNS servers like this:

    supersede domain-name-servers 127.0.0.1, 192.168.10.80;

    Of course, keep in mind that if your local DNS fails or is not working or starting for any reason, that DNS requests will fail, which will generally cause many things to break.  It is probably wise to use a secondary, trusted DNS server on your LAN or on the public internet if possible.

    Don't Forget To Disable systemd-resolved

    On most GUI Linux's such as Ubuntu/Mint etc.. you will have systemd-resolved which has it's own listener on port 53 which forwards requests to the actual DNS server (eg. your ISP's).  This will conflict with your local listener (eg. bind/named).  If you want to use your localhost DNS successfully remember to disable systemd-resolved and stop the service or you will have broken DNS.

    systemctl disable systemd-resolved

    #remember to stop it too!

    systemctl stop systemd-resolved

     


  • Docker dockerd swarm high CPU usage cause solution


    If you have swarm services and dockerd is creating a high load even with the containers just being idle, the easiest solution is to upgrade to a newer docker version.

    For example an identical config of 3 nodes, with Redis 5 with 30 replicas produces a load of about 1.45 in Debian 10 with Docker 18.09.1

    If I create the same setup on Debian 11, with Docker 20.10.5+dfsg1 then the CPU usage is low.

    One other difference I wondered is the kernel.  In my test setup Debian 10 has kernel linux-image-4.19.0-25-amd64, while Debian 11 has linux-image-5.10.0-11-amd64.

    To see if it is some major difference caused between Kernel 4.19 and 5.10 (though I doubted this was the issue), I installed the latest kernel 5.10 in Debian 10 linux-image-5.10.0-0.deb10.26-amd64 on all nodes.  There was no difference at all between 4.19 and 5.10 kernels, so the issue seems to solely be based on an issue that exists in Docker 18.09.01 (or at least how it was compiled for Debian 10) vs the Debian 11's Docker  20.10.5

    It's easy enough to upgrade your Debian 10 to 11 if you need to (I prefer Debian 10 for teseting due to it's smaller footprint over 11).

    Debian 11 Docker Info:

    root@Deb11Docker02:~# docker version
    Client:
     Version:           20.10.5+dfsg1
     API version:       1.41
     Go version:        go1.15.15
     Git commit:        55c4c88
     Built:             Mon May 30 18:34:49 2022
     OS/Arch:           linux/amd64
     Context:           default
     Experimental:      true

    Server:
     Engine:
      Version:          20.10.5+dfsg1
      API version:      1.41 (minimum version 1.12)
      Go version:       go1.15.15
      Git commit:       363e9a8
      Built:            Mon May 30 18:34:49 2022
      OS/Arch:          linux/amd64
      Experimental:     false
     containerd:
      Version:          1.4.13~ds1
      GitCommit:        1.4.13~ds1-1~deb11u4
     runc:
      Version:          1.0.0~rc93+ds1
      GitCommit:        1.0.0~rc93+ds1-5+deb11u2
     docker-init:
      Version:          0.19.0
      GitCommit:        

     

    Debian 10 Docker Info:

    Client:
     Version:           18.09.1
     API version:       1.39
     Go version:        go1.11.6
     Git commit:        4c52b90
     Built:             Sun, 21 Feb 2021 18:18:35 +0100
     OS/Arch:           linux/amd64
     Experimental:      false

    Server:
     Engine:
      Version:          18.09.1
      API version:      1.39 (minimum version 1.12)
      Go version:       go1.11.6
      Git commit:       4c52b90
      Built:            Sun Feb 21 17:18:35 2021
      OS/Arch:          linux/amd64
      Experimental:     false


  • Docker Minimum Requirements/How Efficient is Docker? How Much Memory Does Dockerd Use?


    We used a simple Debian 10 VM and showed the memory before starting docker and with no docker containers being started.  The goal is to show much much memory dockerd actually uses.

    Before docker was started

    The VM was using 58M of RAM.

    After docker was started

    it was using 99MB of RAM.

    How much RAM does docker use?

    It's not scientific but fair to say dockerd itself uses about 41MB of RAM (99-58).

    This proves that docker has very low requirements and doesn't have much overhead to even run containers.

    Learn more in this Docker Tutorial


  • qemu-nbd: Failed to set NBD socket solution qemu-nbd: Disconnect client, due to: Failed to read request: Unexpected end-of-file before all bytes were read


    You are trying to mount and connect to an image using qemu-nbd:

    qemu-nbd -c /dev/nbd0 rtt.qcow2

    qemu-nbd: Failed to set NBD socket
    qemu-nbd: Disconnect client, due to: Failed to read request: Unexpected end-of-file before all bytes were read

    Another related error:

    qemu-nbd: Failed to unlink socket /var/lock/qemu-nbd-nbd0: Operation not permitted
    Error with nbd, exiting

    The above can happen if you don't have permission to access the nbd socket.

    qemu-nbd is not that smart, this is caused by /dev/nbd0 being connected

    This can happen due to a failed mount or perhaps you just forgot to disconnect the previous time.

    We'll solve it by disconnecting the nbd0 device with the -d flag (for disconnect).

    qemu-nbd -d /dev/nbd0
    /dev/nbd0 disconnected

    Now can see that it works without error
     

    qemu-nbd -c /dev/nbd0 1234.img
     

    fdisk -l /dev/nbd0


    Disk /dev/nbd0: 15 GiB, 16106127360 bytes, 31457280 sectors
    Units: sectors of 1 * 512 = 512 bytes
    Sector size (logical/physical): 512 bytes / 512 bytes
    I/O size (minimum/optimal): 512 bytes / 512 bytes

    Simple Way To Test if /dev/nbd0 is in use

    Also remember by default you probably have up to /dev/nbd15.

    You can use a tool like fdisk to check if the nbd is in use:

    fdisk -l /dev/nbd0
    fdisk: cannot open /dev/nbd0: Inappropriate ioctl for device

    If you get an error like "fdisk: cannot open /dev/nbd0: Inappropriate ioctl for device", it is NOT in use.

    If it's in use you should be able to see the disk info:

    fdisk -l /dev/nbd0
    Disk /dev/nbd0: 10 GiB, 10737418240 bytes, 20971520 sectors
    Units: sectors of 1 * 512 = 512 bytes
    Sector size (logical/physical): 512 bytes / 512 bytes
    I/O size (minimum/optimal): 512 bytes / 512 bytes


  • apache2 httpd apache server will not start [pid 22449:tid 139972160445760] AH00052: child pid 23248 exit signal Aborted (6) solution Mint Debian Ubuntu Redhat


    If you get this error, it is often because you have configured Apache with modules that weren't actually installed.  Eg. you try to load the PHP module but didn't actually install the apache2 php module, so the server can't start.  In general, this error can often be caused by issues with problematic modules and/or Apache being configured for modules that have not actually be installed (eg. libapache2-mod-php) is missing.

    The above results in this less than obvious error:

    [pid 22449:tid 139972160445760] AH00052: child pid 23248 exit signal Aborted (6) 

    Install the missing module into Apache 2 to solve it

    In this test case we know the issue is PHP missing from Apache

    apt install libapache2-mod-php

    Of course if you were using another module, you would want to install the corresponding one.

    Here is a list of apache2 modules from Debian 11:

    libapache2-mod-upload-progress - upload progress support for the Apache web server
    libapache2-mod-md - transitional package
    libapache2-mod-proxy-uwsgi - transitional package
    libapache2-mod-xforward - Apache module implements redirection based on X-Forward response header
    libapache2-mod-apparmor - changehat AppArmor library as an Apache module
    libapache2-mod-auth-radius - Apache 2.x module for RADIUS authentication
    libapache2-mod-evasive - evasive module to minimize HTTP DoS or brute force attacks
    libapache-mod-jk-doc - Documentation of libapache2-mod-jk package
    libapache2-mod-jk - Apache 2 connector for the Tomcat Java servlet engine
    libapache2-mod-log-sql - Use SQL to store/write your Apache queries logs - Base
    libapache2-mod-log-sql-dbi - Use SQL to store/write your Apache queries logs - DBI interface
    libapache2-mod-log-sql-mysql - Use SQL to store/write your Apache queries logs - MySQL interface
    libapache2-mod-log-sql-ssl - Use SQL to store/write your Apache queries logs - SSL extension
    libapache2-mod-musicindex - Browse, stream, download and search through MP3/Ogg/FLAC files
    libapache2-mod-removeip - Module to remove IP from apache2's logs
    libapache2-authcassimple-perl - Apache2 module to authenticate trough a CAS server
    libapache2-authcookie-perl - Perl Authentication and Authorization via cookies
    libapache2-mod-auth-cas - CAS authentication module for Apache2
    libapache2-mod-auth-gssapi - GSSAPI Authentication module for Apache2
    libapache2-mod-auth-mellon - SAML 2.0 authentication module for Apache
    libapache2-mod-auth-openid - OpenID authentication module for Apache2
    libapache2-mod-auth-openidc - OpenID Connect authentication module for Apache
    libapache2-mod-auth-plain - Module for Apache2 which provides plaintext authentication
    libapache2-mod-auth-pubtkt - key-based single-sign-on authentication module for Apache
    libapache2-mod-auth-tkt - lightweight single-sign-on authentication module for Apache
    libapache2-mod-authn-sasl - SASL authentication backend provider for Apache
    libapache2-mod-authn-yolo - Yolo style authentication for Apache 2
    libapache2-mod-authn-yubikey - Yubikey authentication provider for Apache
    libapache2-mod-authnz-external - authenticate Apache against external authentication services
    libapache2-mod-authnz-pam - PAM authorization checker and PAM Basic Authentication provider
    libapache2-mod-authz-unixgroup - access control based on on unix group membership for Apache
    libapache2-mod-bw - bandwidth limiting module for apache2
    libapache2-mod-defensible - module for Apache2 which provides DNSBL usage
    libapache2-mod-encoding - Apache2 module for non-ascii filename interoperability
    libapache2-mod-fcgid - FastCGI interface module for Apache 2
    libapache2-mod-form - Apache module to decode data submitted from Web forms
    libapache2-mod-form-dev - Apache module to decode data submitted from Web forms (development files)
    libapache2-mod-geoip - GeoIP support for apache2
    libapache2-mod-intercept-form-submit - Apache module to intercept login form submission and run PAM authentication
    libapache2-mod-ldap-userdir - Apache module that provides UserDir lookups via LDAP
    libapache2-mod-ldap-userdir-dbg - Debugging symbols for mod_ldap_userdir
    libapache2-mod-lisp - An Apache2 module that interfaces with Lisp environments
    libapache2-mod-log-slow - Apache module for logging of slow requests handling
    libapache2-mod-lookup-identity - Apache module to retrieve additional information about the authenticated user
    libapache2-mod-perl2 - Integration of perl with the Apache2 web server
    libapache2-mod-perl2-dev - Integration of perl with the Apache2 web server - development files
    libapache2-mod-perl2-doc - Integration of perl with the Apache2 web server - documentation
    libapache2-mod-python - Python-embedding module for Apache 2
    libapache2-mod-python-doc - Python-embedding module for Apache 2 - documentation
    libapache2-mod-qos - quality of service module for the apache2
    libapache2-mod-rivet - Server-side Tcl programming system combining ease of use and power
    libapache2-mod-rivet-doc - Documentation for Rivet, a server-side Tcl programming system
    libapache2-mod-rpaf - module for Apache2 which takes the last IP from the 'X-Forwarded-For' header
    libapache2-mod-tile - Apache module to deliver tiles created by renderd
    libapache2-mod-watchcat - Process monitoring Apache module
    libapache2-mod-xsendfile - Serve large static files efficiently from web applications
    libapache2-reload-perl - module for reloading Perl modules when changed on disk
    libapache2-sitecontrol-perl - perl web site authentication/authorization system
    libapache2-mod-apreq2 - generic Apache request library - Apache module
    libapache2-request-perl - generic Apache request library - Perl modules
    libapache2-mod-mapcache - tile caching server - Apache module
    libapache2-mod-dnssd - Zeroconf support for Apache 2 via avahi
    libapache2-mod-mime-xattr - Apache2 module to get MIME info from filesystem extended attributes
    libapache2-mod-mono - Apache module for running ASP.NET applications on Mono
    libapache2-mod-vhost-ldap - Apache 2 module for Virtual Hosting from LDAP
    libapache2-mod-wsgi-py3 - Python 3 WSGI adapter module for Apache
    libapache2-mod-security2 - Tighten web applications security for Apache
    libapache2-mpm-itk - multiuser module for Apache
    libapache2-mod-neko - Apache module for running server-side Neko programs
    libapache2-mod-netcgi-apache - OCaml application-level Internet libraries - netcgi2 Apache2 connector
    libapache2-mod-parser3 - Parser 3, HTML-embedded scripting language (Apache2 module)
    libapache2-mod-passenger - Rails and Rack support for Apache2
    libapache2-mod-php - server-side, HTML-embedded scripting language (Apache 2 module) (default)
    libapache2-mod-php7.4 - server-side, HTML-embedded scripting language (Apache 2 module)
    libapache2-mod-r-base - server-side R integration with Apache 2
    libapache2-mod-shib - Federated web single sign-on system (Apache module)
    libapache2-mod-svn - Apache Subversion server modules for Apache httpd
    libapache2-mod-ruwsgi - uwsgi module for Apache2 (mod_Ruwsgi)
    libapache2-mod-ruwsgi-dbg - debugging symbols for Apache2 mod_Ruwsgi
    libapache2-mod-uwsgi - uwsgi module for Apache2 (mod_uwsgi)
    libapache2-mod-uwsgi-dbg - debugging symbols for Apache2 mod_uwsgi
    libapache2-mod-webauth - Apache module for WebAuth authentication
    libapache2-mod-webauthldap - Apache module for WebAuth LDAP lookup and authorization
    libapache2-mod-webkdc - Apache modules for a WebAuth authentication KDC

     


  • How to use the FTDI USB serial cable to RJ45 adapter to connect to the console on Cisco/Juniper Switch Router Firewall in Linux Ubuntu Debian Redhat


    This should work for most console ports of other manufacturers too.  It is a quick and simple method for emegencies or deploying a few appliances/devices in a non-standard environment or small environment. 

    However, if this is a route thing, or the equipment is not physically close to you, it would be best to use some sort of "Terminal" server which is an IP connected switch with several serial ports built-in for this purpose.  Normally they accessible by web/ssh/telnet, so you don't have to worry about getting physical access to the device (eg. if it's in a communications room, datacenter or another place that is not convenient to physically access).

    Step 1 - Just plugin the USB side and then connect to the console port of the device

    The console port is often located at the back of the device, but some devices may have them at the front of the unit.  Also be careful that you don't connect it to the Management port of the device, as then this won't work and you won't receive any output to the terminal.

    You should get output like this after plugging in the USB to RJ45 adapter:

    [ 2113.427366] usb 1-1.2: new full-speed USB device number 24 using ehci-pci
    [ 2113.542286] usb 1-1.2: New USB device found, idVendor=0403, idProduct=6001, bcdDevice= 6.00
    [ 2113.542289] usb 1-1.2: New USB device strings: Mfr=1, Product=2, SerialNumber=3
    [ 2113.542292] usb 1-1.2: Product: FT232R USB UART
    [ 2113.542294] usb 1-1.2: Manufacturer: FTDI
    [ 2113.542295] usb 1-1.2: SerialNumber: A50285BI
    [ 2113.544859] ftdi_sio 1-1.2:1.0: FTDI USB Serial Device converter detected
    [ 2113.544901] usb 1-1.2: Detected FT232RL
    [ 2113.545854] usb 1-1.2:
    FTDI USB Serial Device converter now attached to ttyUSB0

    Note the "attached to ttyUSB0" part, normally a standard serial cable would be available by deault on /dev/ttyS0, but with the USB adapter it will live on /dev/ttyUSB0

    If you don't get the above output, confirm that the ftdi_sio kernel module is loaded.  If it's not there, you may need the following packages:

    linux-modules-extra

    Here is the easiest way to install the missing ftdi driver on Debian/Ubuntu/Mint

    sudo apt install linux-modules-extra-`uname -r`

    Step 2 - Connect to the console port on your device using screen/putty or other tool

    One of the easiest tools to use is screen or putty, but any serial/terminal program will normally do the job.

    screen /dev/ttyUSB0

    Below is an example of consoling into a Juniper switch.

     


  • How To Setup Python3 in Ubuntu Docker Image for AI Deep Learning


    The issue is that Docker images are stripped down, so many tools and even python3 is missing, so you'll have to build or update the actual image yourself.

    I assume you have started an image with something like this and that you have the Nvidia Toolkit installed (assuming you are using GPUs).  If you're not using nvidia just remove --runtime=nvidia --gpus all.

    docker run -it --runtime=nvidia --gpus all ubuntu bash

    These works for most images like Ubuntu 20.04 22.04 etc..:

    apt update;apt install python3-pip


    Get:1 http://security.ubuntu.com/ubuntu jammy-security InRelease [110 kB]
    Get:2 http://archive.ubuntu.com/ubuntu jammy InRelease [270 kB]
    Get:3 http://security.ubuntu.com/ubuntu jammy-security/restricted amd64 Packages [1404 kB]
    Get:4 http://security.ubuntu.com/ubuntu jammy-security/multiverse amd64 Packages [44.0 kB]
    Get:5 http://security.ubuntu.com/ubuntu jammy-security/universe amd64 Packages [1011 kB]
    Get:6 http://security.ubuntu.com/ubuntu jammy-security/main amd64 Packages [1204 kB]
    Get:7 http://archive.ubuntu.com/ubuntu jammy-updates InRelease [119 kB]        
    Get:8 http://archive.ubuntu.com/ubuntu jammy-backports InRelease [109 kB]                 
    Get:9 http://archive.ubuntu.com/ubuntu jammy/multiverse amd64 Packages [266 kB]
    Get:10 http://archive.ubuntu.com/ubuntu jammy/restricted amd64 Packages [164 kB]
    Get:11 http://archive.ubuntu.com/ubuntu jammy/main amd64 Packages [1792 kB]
    Get:12 http://archive.ubuntu.com/ubuntu jammy/universe amd64 Packages [17.5 MB]
    Get:13 http://archive.ubuntu.com/ubuntu jammy-updates/restricted amd64 Packages [1430 kB]
    Get:14 http://archive.ubuntu.com/ubuntu jammy-updates/main amd64 Packages [1474 kB]
    Get:15 http://archive.ubuntu.com/ubuntu jammy-updates/multiverse amd64 Packages [49.8 kB]
    Get:16 http://archive.ubuntu.com/ubuntu jammy-updates/universe amd64 Packages [1279 kB]
    Get:17 http://archive.ubuntu.com/ubuntu jammy-backports/universe amd64 Packages [32.6 kB]
    Get:18 http://archive.ubuntu.com/ubuntu jammy-backports/main amd64 Packages [78.3 kB]
    Fetched 28.3 MB in 3s (8211 kB/s)                          
    Reading package lists... Done
    Building dependency tree... Done
    Reading state information... Done
    11 packages can be upgraded. Run 'apt list --upgradable' to see them.
    Reading package lists... Done
    Building dependency tree... Done
    Reading state information... Done
    The following additional packages will be installed:
      binutils binutils-common binutils-x86-64-linux-gnu build-essential bzip2 ca-certificates cpp cpp-11 dirmngr dpkg-dev fakeroot fontconfig-config fonts-dejavu-core g++ g++-11 gcc gcc-11 gcc-11-base gnupg
      gnupg-l10n gnupg-utils gpg gpg-agent gpg-wks-client gpg-wks-server gpgconf gpgsm javascript-common libalgorithm-diff-perl libalgorithm-diff-xs-perl libalgorithm-merge-perl libasan6 libassuan0 libatomic1
      libbinutils libbrotli1 libbsd0 libc-dev-bin libc-devtools libc6-dev libcc1-0 libcrypt-dev libctf-nobfd0 libctf0 libdeflate0 libdpkg-perl libexpat1 libexpat1-dev libfakeroot libfile-fcntllock-perl
      libfontconfig1 libfreetype6 libgcc-11-dev libgd3 libgdbm-compat4 libgdbm6 libgomp1 libisl23 libitm1 libjbig0 libjpeg-turbo8 libjpeg8 libjs-jquery libjs-sphinxdoc libjs-underscore libksba8 libldap-2.5-0
      libldap-common liblocale-gettext-perl liblsan0 libmd0 libmpc3 libmpdec3 libmpfr6 libnpth0 libnsl-dev libperl5.34 libpng16-16 libpython3-dev libpython3-stdlib libpython3.10 libpython3.10-dev
      libpython3.10-minimal libpython3.10-stdlib libquadmath0 libreadline8 libsasl2-2 libsasl2-modules libsasl2-modules-db libsqlite3-0 libstdc++-11-dev libtiff5 libtirpc-dev libtsan0 libubsan1 libwebp7
      libx11-6 libx11-data libxau6 libxcb1 libxdmcp6 libxpm4 linux-libc-dev lto-disabled-list make manpages manpages-dev media-types netbase openssl patch perl perl-modules-5.34 pinentry-curses python3
      python3-dev python3-distutils python3-lib2to3 python3-minimal python3-pkg-resources python3-setuptools python3-wheel python3.10 python3.10-dev python3.10-minimal readline-common rpcsvc-proto ucf xz-utils
      zlib1g-dev
    Suggested packages:
      binutils-doc bzip2-doc cpp-doc gcc-11-locales dbus-user-session libpam-systemd pinentry-gnome3 tor debian-keyring g++-multilib g++-11-multilib gcc-11-doc gcc-multilib autoconf automake libtool flex bison
      gdb gcc-doc gcc-11-multilib parcimonie xloadimage scdaemon apache2 | lighttpd | httpd glibc-doc git bzr libgd-tools gdbm-l10n libsasl2-modules-gssapi-mit | libsasl2-modules-gssapi-heimdal
      libsasl2-modules-ldap libsasl2-modules-otp libsasl2-modules-sql libstdc++-11-doc make-doc man-browser ed diffutils-doc perl-doc libterm-readline-gnu-perl | libterm-readline-perl-perl
      libtap-harness-archive-perl pinentry-doc python3-doc python3-tk python3-venv python-setuptools-doc python3.10-venv python3.10-doc binfmt-support readline-doc
    The following NEW packages will be installed:
      binutils binutils-common binutils-x86-64-linux-gnu build-essential bzip2 ca-certificates cpp cpp-11 dirmngr dpkg-dev fakeroot fontconfig-config fonts-dejavu-core g++ g++-11 gcc gcc-11 gcc-11-base gnupg
      gnupg-l10n gnupg-utils gpg gpg-agent gpg-wks-client gpg-wks-server gpgconf gpgsm javascript-common libalgorithm-diff-perl libalgorithm-diff-xs-perl libalgorithm-merge-perl libasan6 libassuan0 libatomic1
      libbinutils libbrotli1 libbsd0 libc-dev-bin libc-devtools libc6-dev libcc1-0 libcrypt-dev libctf-nobfd0 libctf0 libdeflate0 libdpkg-perl libexpat1 libexpat1-dev libfakeroot libfile-fcntllock-perl
      libfontconfig1 libfreetype6 libgcc-11-dev libgd3 libgdbm-compat4 libgdbm6 libgomp1 libisl23 libitm1 libjbig0 libjpeg-turbo8 libjpeg8 libjs-jquery libjs-sphinxdoc libjs-underscore libksba8 libldap-2.5-0
      libldap-common liblocale-gettext-perl liblsan0 libmd0 libmpc3 libmpdec3 libmpfr6 libnpth0 libnsl-dev libperl5.34 libpng16-16 libpython3-dev libpython3-stdlib libpython3.10 libpython3.10-dev
      libpython3.10-minimal libpython3.10-stdlib libquadmath0 libreadline8 libsasl2-2 libsasl2-modules libsasl2-modules-db libsqlite3-0 libstdc++-11-dev libtiff5 libtirpc-dev libtsan0 libubsan1 libwebp7
      libx11-6 libx11-data libxau6 libxcb1 libxdmcp6 libxpm4 linux-libc-dev lto-disabled-list make manpages manpages-dev media-types netbase openssl patch perl perl-modules-5.34 pinentry-curses python3
      python3-dev python3-distutils python3-lib2to3 python3-minimal python3-pip python3-pkg-resources python3-setuptools python3-wheel python3.10 python3.10-dev python3.10-minimal readline-common rpcsvc-proto
      ucf xz-utils zlib1g-dev
    0 upgraded, 131 newly installed, 0 to remove and 11 not upgraded.
    Need to get 101 MB of archives.
    After this operation, 356 MB of additional disk space will be used.
    Do you want to continue? [Y/n] y
    .......
    done.

    Install needed packages

    To get started we just install tensorflow and torch.  You will need to adjust for whatever python libraries you need.

    Install pytorch:

    pip3 install torch matplotlib       
    WARNING: The directory '/root/.cache/pip' or its parent directory is not owned or is not writable by the current user. The cache has been disabled. Check the permissions and owner of that directory. If executing pip with sudo, you should use sudo's -H flag.
    Collecting torch
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    Installing collected packages: mpmath, typing-extensions, sympy, six, pyparsing, pillow, packaging, nvidia-nvtx-cu12, nvidia-nvjitlink-cu12, nvidia-nccl-cu12, nvidia-curand-cu12, nvidia-cufft-cu12, nvidia-cuda-runtime-cu12, nvidia-cuda-nvrtc-cu12, nvidia-cuda-cupti-cu12, nvidia-cublas-cu12, numpy, networkx, MarkupSafe, kiwisolver, fsspec, fonttools, filelock, cycler, triton, python-dateutil, nvidia-cusparse-cu12, nvidia-cudnn-cu12, jinja2, contourpy, nvidia-cusolver-cu12, matplotlib, torch
    Successfully installed MarkupSafe-2.1.3 contourpy-1.2.0 cycler-0.12.1 filelock-3.13.1 fonttools-4.45.0 fsspec-2023.10.0 jinja2-3.1.2 kiwisolver-1.4.5 matplotlib-3.8.2 mpmath-1.3.0 networkx-3.2.1 numpy-1.26.2 nvidia-cublas-cu12-12.1.3.1 nvidia-cuda-cupti-cu12-12.1.105 nvidia-cuda-nvrtc-cu12-12.1.105 nvidia-cuda-runtime-cu12-12.1.105 nvidia-cudnn-cu12-8.9.2.26 nvidia-cufft-cu12-11.0.2.54 nvidia-curand-cu12-10.3.2.106 nvidia-cusolver-cu12-11.4.5.107 nvidia-cusparse-cu12-12.1.0.106 nvidia-nccl-cu12-2.18.1 nvidia-nvjitlink-cu12-12.3.101 nvidia-nvtx-cu12-12.1.105 packaging-23.2 pillow-10.1.0 pyparsing-3.1.1 python-dateutil-2.8.2 six-1.16.0 sympy-1.12 torch-2.1.1 triton-2.1.0 typing-extensions-4.8.0
     

    Install Tensorflow:

    pip3 install tensorflow       
    WARNING: The directory '/root/.cache/pip' or its parent directory is not owned or is not writable by the current user. The cache has been disabled. Check the permissions and owner of that directory. If executing pip with sudo, you should use sudo's -H flag.
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    Collecting astunparse>=1.6.0
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    Collecting google-auth-oauthlib<2,>=0.5
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    Collecting protobuf!=4.21.0,!=4.21.1,!=4.21.2,!=4.21.3,!=4.21.4,!=4.21.5,<5.0.0dev,>=3.20.3
      Downloading protobuf-4.23.4-cp37-abi3-manylinux2014_x86_64.whl (304 kB)
         ━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━ 304.5/304.5 KB 136.7 MB/s eta 0:00:00
    Collecting werkzeug>=1.0.1
      Downloading werkzeug-3.0.1-py3-none-any.whl (226 kB)
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    Collecting markdown>=2.6.8
      Downloading Markdown-3.5.1-py3-none-any.whl (102 kB)
         ━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━ 102.2/102.2 KB 157.0 MB/s eta 0:00:00
    Collecting requests<3,>=2.21.0
      Downloading requests-2.31.0-py3-none-any.whl (62 kB)
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    Collecting google-auth<3,>=1.6.3
      Downloading google_auth-2.23.4-py2.py3-none-any.whl (183 kB)
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    Collecting cachetools<6.0,>=2.0.0
      Downloading cachetools-5.3.2-py3-none-any.whl (9.3 kB)
    Collecting rsa<5,>=3.1.4
      Downloading rsa-4.9-py3-none-any.whl (34 kB)
    Collecting pyasn1-modules>=0.2.1
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    Collecting requests-oauthlib>=0.7.0
      Downloading requests_oauthlib-1.3.1-py2.py3-none-any.whl (23 kB)
    Collecting charset-normalizer<4,>=2
      Downloading charset_normalizer-3.3.2-cp310-cp310-manylinux_2_17_x86_64.manylinux2014_x86_64.whl (142 kB)
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    Collecting certifi>=2017.4.17
      Downloading certifi-2023.11.17-py3-none-any.whl (162 kB)
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    Collecting idna<4,>=2.5
      Downloading idna-3.4-py3-none-any.whl (61 kB)
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    Collecting urllib3<3,>=1.21.1
      Downloading urllib3-2.1.0-py3-none-any.whl (104 kB)
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    Collecting pyasn1<0.6.0,>=0.4.6
      Downloading pyasn1-0.5.0-py2.py3-none-any.whl (83 kB)
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    Collecting oauthlib>=3.0.0
      Downloading oauthlib-3.2.2-py3-none-any.whl (151 kB)
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    Installing collected packages: libclang, flatbuffers, wrapt, werkzeug, urllib3, termcolor, tensorflow-io-gcs-filesystem, tensorflow-estimator, tensorboard-data-server, pyasn1, protobuf, opt-einsum, oauthlib, ml-dtypes, markdown, keras, idna, h5py, grpcio, google-pasta, gast, charset-normalizer, certifi, cachetools, astunparse, absl-py, rsa, requests, pyasn1-modules, requests-oauthlib, google-auth, google-auth-oauthlib, tensorboard, tensorflow
    Successfully installed absl-py-2.0.0 astunparse-1.6.3 cachetools-5.3.2 certifi-2023.11.17 charset-normalizer-3.3.2 flatbuffers-23.5.26 gast-0.5.4 google-auth-2.23.4 google-auth-oauthlib-1.1.0 google-pasta-0.2.0 grpcio-1.59.3 h5py-3.10.0 idna-3.4 keras-2.15.0 libclang-16.0.6 markdown-3.5.1 ml-dtypes-0.2.0 oauthlib-3.2.2 opt-einsum-3.3.0 protobuf-4.23.4 pyasn1-0.5.0 pyasn1-modules-0.3.0 requests-2.31.0 requests-oauthlib-1.3.1 rsa-4.9 tensorboard-2.15.1 tensorboard-data-server-0.7.2 tensorflow-2.15.0 tensorflow-estimator-2.15.0 tensorflow-io-gcs-filesystem-0.34.0 termcolor-2.3.0 urllib3-2.1.0 werkzeug-3.0.1 wrapt-1.14.1
     

     


  • How to Configure NVIDIA GPUs with Docker on Ubuntu: A Comprehensive Guide for AI Deep Learning CUDA Solution


    Welcome to our in-depth guide on configuring NVIDIA GPUs with Docker on Ubuntu. This post is tailored for developers, data scientists, and IT professionals who are looking to leverage the power of NVIDIA's GPU acceleration within Docker containers. 

    Whether you're working on machine learning projects, scientific computations, or any GPU-intensive tasks, this guide will walk you through the process step-by-step.

    This guide will work for all Nvidia GPUs that have a supported driver in Linux such as the GTX, RTX and Tesla series.  Of course the Tesla series is recommended as they have ECC and are more tailored for AI applications.

    Normally it is not possible to share a GPU with multiple containers

    Typically 1 real/physical GPU can work on one machine, whether physical or a VM that gets exclusive use.  But nvidia has made tools that solve this problem by essentially creating a layer between Docker and the nvidia driver.

    There is the old nvidia-docker2 package that NVIDIA has created which allows an unlimited amount of Docker containers to use the underlaying GPU(s) on the host  but this has now been deprecrated for the new "nvidia-toolkit"

    nvidia-toolkit is what you want unless there's a reason why you have an older distro that can't use the newer nvidia-toolkit.

    nvidia-toolkit official install guide: https://docs.nvidia.com/datacenter/cloud-native/container-toolkit/latest/install-guide.html

    How To Install nvidia-toolkit on Mint Ubuntu Debian

    Step 1.) Add the Nvidia repo to Linux

    First we add the gpg key for the repo:

    curl -fsSL https://nvidia.github.io/libnvidia-container/gpgkey | sudo gpg --dearmor -o /usr/share/keyrings/nvidia-container-toolkit-keyring.gpg

    Add the repo into our sources.list.d

    curl -s -L https://nvidia.github.io/libnvidia-container/stable/deb/nvidia-container-toolkit.list | sed 's#deb https://#deb [signed-by=/usr/share/keyrings/nvidia-container-toolkit-keyring.gpg] https://#g' |  
    sudo tee /etc/apt/sources.list.d/nvidia-container-toolkit.list

    Update apt so it can see the required packages from the nvidia repo

    apt update

    Step 2 - Install nvidia toolkit

    apt-get install -y nvidia-container-toolkit
    
    Reading package lists... Done
    Building dependency tree       
    Reading state information... Done
    The following additional packages will be installed:
      libnvidia-container-tools libnvidia-container1 nvidia-container-toolkit-base
    The following NEW packages will be installed:
      libnvidia-container-tools libnvidia-container1 nvidia-container-toolkit nvidia-container-toolkit-base
    0 upgraded, 4 newly installed, 0 to remove and 690 not upgraded.
    Need to get 4,194 kB of archives.
    After this operation, 16.6 MB of additional disk space will be used.
    Get:1 https://nvidia.github.io/libnvidia-container/stable/deb/amd64  libnvidia-container1 1.14.3-1 [923 kB]
    Get:2 https://nvidia.github.io/libnvidia-container/stable/deb/amd64  libnvidia-container-tools 1.14.3-1 [19.3 kB]
    Get:3 https://nvidia.github.io/libnvidia-container/stable/deb/amd64  nvidia-container-toolkit-base 1.14.3-1 [2,336 kB]
    Get:4 https://nvidia.github.io/libnvidia-container/stable/deb/amd64  nvidia-container-toolkit 1.14.3-1 [917 kB]
    Fetched 4,194 kB in 1s (3,150 kB/s)           
    Selecting previously unselected package libnvidia-container1:amd64.
    (Reading database ... 467373 files and directories currently installed.)
    Preparing to unpack .../libnvidia-container1_1.14.3-1_amd64.deb ...
    Unpacking libnvidia-container1:amd64 (1.14.3-1) ...
    Selecting previously unselected package libnvidia-container-tools.
    Preparing to unpack .../libnvidia-container-tools_1.14.3-1_amd64.deb ...
    Unpacking libnvidia-container-tools (1.14.3-1) ...
    Selecting previously unselected package nvidia-container-toolkit-base.
    Preparing to unpack .../nvidia-container-toolkit-base_1.14.3-1_amd64.deb ...
    Unpacking nvidia-container-toolkit-base (1.14.3-1) ...
    Selecting previously unselected package nvidia-container-toolkit.
    Preparing to unpack .../nvidia-container-toolkit_1.14.3-1_amd64.deb ...
    Unpacking nvidia-container-toolkit (1.14.3-1) ...
    Setting up nvidia-container-toolkit-base (1.14.3-1) ...
    Setting up libnvidia-container1:amd64 (1.14.3-1) ...
    Setting up libnvidia-container-tools (1.14.3-1) ...
    Setting up nvidia-container-toolkit (1.14.3-1) ...
    Processing triggers for libc-bin (2.31-0ubuntu9.2) ...
    
    

    Step 3 - Docker Configuration

    nvidia-ctk runtime configure --runtime=docker


    INFO[0000] Loading config from /etc/docker/daemon.json  
    INFO[0000] Wrote updated config to /etc/docker/daemon.json
    INFO[0000] It is recommended that docker daemon be restarted.

    Step 4 - Test

    docker run --rm --runtime=nvidia --gpus all ubuntu nvidia-smi
    
    +-----------------------------------------------------------------------------+
    | NVIDIA-SMI 390.154                Driver Version: 390.154                   |
    |-------------------------------+----------------------+----------------------+
    | GPU  Name        Persistence-M| Bus-Id        Disp.A | Volatile Uncorr. ECC |
    | Fan  Temp  Perf  Pwr:Usage/Cap|         Memory-Usage | GPU-Util  Compute M. |
    |===============================+======================+======================|
    |   0  Tesla V100-SXM2...      Off  | 00000000:04:00.0 N/A |              N/A |
    | N/A   41C    P0    N/A /  N/A |    0MiB /   16160MiB |     N/A      Default |
    +-------------------------------+----------------------+----------------------+
                                                                                   
    +-----------------------------------------------------------------------------+
    | Processes:                                                       GPU Memory |
    |  GPU       PID   Type   Process name                             Usage      |
    |=============================================================================|
    |    0                    Not Supported                                       |
    +-----------------------------------------------------------------------------+
    
    

     


  • Linux Ubuntu Mint how to check nameservers when /etc/resolv.conf disabled solution


    You'll notice that /etc/resolv.conf contains dire warners on most Linux Desktops. 


    # This file is managed by man:systemd-resolved(8). Do not edit.
    #
    # This is a dynamic resolv.conf file for connecting local clients to the
    # internal DNS stub resolver of systemd-resolved. This file lists all
    # configured search domains.
    #
    # Run "resolvectl status" to see details about the uplink DNS servers
    # currently in use.
    #
    # Third party programs must not access this file directly, but only through the
    # symlink at /etc/resolv.conf. To manage man:resolv.conf(5) in a different way,
    # replace this symlink by a static file or a different symlink.
    #
    # See man:systemd-resolved.service(8) for details about the supported modes of
    # operation for /etc/resolv.conf.

    nameserver 127.0.0.53

     

    This is because of systemd-resolved, which is a local, internal DNS resolver service that handles all of the DNS requests.  It warns you not to make changes since they will just be overwritten and defaulted back to the local resolver running on 127.0.0.52 as we can see with the line for "nameserver 127.0.0.53"

    We can see that indeed systemd-resolved is running on 127.0.0.53

    Output of netstat

    tcp        0      0 127.0.0.53:53           0.0.0.0:*               LISTEN      1773/systemd-resolv
    udp        0      0 127.0.0.53:53           0.0.0.0:*                           1773/systemd-resolv

     

    You can check the current nameservers with this command:

    systemd-resolve --status

    Global
           LLMNR setting: no                  
    MulticastDNS setting: no                  
      DNSOverTLS setting: no                  
          DNSSEC setting: no                  
        DNSSEC supported: no                  
      Current DNS Server: 172.76.5.2     
             DNS Servers:
    172.76.5.2
                          172.76.5.3     
              DNSSEC NTA: 10.in-addr.arpa     
                          16.172.in-addr.arpa
                          168.192.in-addr.arpa
                          17.172.in-addr.arpa
                          18.172.in-addr.arpa
                          19.172.in-addr.arpa
                          20.172.in-addr.arpa
                          21.172.in-addr.arpa
                          22.172.in-addr.arpa
                          23.172.in-addr.arpa
                          24.172.in-addr.arpa
                          25.172.in-addr.arpa
                          26.172.in-addr.arpa
                          27.172.in-addr.arpa
                          28.172.in-addr.arpa
                          29.172.in-addr.arpa
                          30.172.in-addr.arpa
                          31.172.in-addr.arpa
                          corp                
                          d.f.ip6.arpa        
                          home                
                          internal            
                          intranet            
                          lan                 
                          local               
                          private             
                          test                

    Link 13 (veth8325f72)
          Current Scopes: none
    DefaultRoute setting: no  
           LLMNR setting: yes
    MulticastDNS setting: no  
      DNSOverTLS setting: no  
          DNSSEC setting: no  
        DNSSEC supported: no  

    Link 11 (veth9a73ce5)
          Current Scopes: none
    DefaultRoute setting: no  
           LLMNR setting: yes
    MulticastDNS setting: no  
      DNSOverTLS setting: no  
          DNSSEC setting: no  
        DNSSEC supported: no  

    How can we get rid of systemd-resolved?

    In fact this is required if want to run our own bind or DNSMasq server for various reasons including running your own local routing/DNS: https://realtechtalk.com/Virtualbox_Best_Networking_Mode_In_LabWork_Environment_without_using_NAT_Network_or_Bridged-2475-articles

     

    systemctl disable systemd-resolved

    #remember to stop it too!

    systemctl stop systemd-resolved

    Remember to actually add a "nameserver" entry in /etc/resolv.conf or your DNS won't work.


  • Docker cannot work on other overlayfs filesystems such as ecryptfs won't start overlayfs: filesystem on '/home/docker/overlay2/check-overlayfs-support130645871/upper' not supported as upperdir


    This does not seem to be officially documented but makes sense that an overlay on an overlay does not work and is considered an unsupported filesystem as is even NTFS .  Some admins/organizations try to use ecyptfs as a simple solution to encrypt the contents of Docker.  Instead, you could probably use something like Luks to encrypt it all.

    One other half measure that you can use, is to do mount a volume that is encrypted to your container.  If all the sensitive data is located on the volume alone, that would provide a better level of security than no encryption.  However, if during the operation of the container, data is copied to portions of the container that are not part of the encrypted mount volume, then this does expose any of those portions of data.  It also won't help protect any secrets that are stored in Docker, since those will live in unencrypted /var/lib/docker, so keep that in mind.

    You'll get errors like this when trying to run on ecryptfs or another overlayfs system:

    [graphdriver] trying configured driver: overlay2
    failed to mount overlay: invalid argument     storage-driver=overlay2
    failed to start daemon: error initializing graphdriver: driver not supported: overlay2

    overlayfs: filesystem on '/home/docker/overlay2/check-overlayfs-support130645871/upper' not supported as upperdir

    Basically Docker mainly supports and recommends overlayfs, so this does create a limitation if the data directory for docker (by default /var/lib/docker) is already using overlayfs for any reason.

    References:

    https://github.com/moby/moby/pull/23121

    https://github.com/moby/moby/issues/22577

    https://forums.rancher.com/t/overlayfs-filesystem-on-not-supported-as-upperdir/20690


  • Linux How To Access Original Contents of Directory Mounted Debian Mint CentOS Redhat Solution


    Let's say you have a directory /mnt/raid which has files and directories inside it, but nothing is mounted to it.

    Then you mount a block device such as /dev/sdh to /mnt/raid

    Even though /mnt/raid has files and directories there, you can only see the mounted contents of /mnt/raid.

    How do we access the original contents?

    Just do a bind mount of the root filesystem to another location.

    mkdir /bindmount

    mount --bind / /bindmount

    Now just go to /bindmount/mnt/raid and you will be able to see the original contents of those files/directories and this is the case with any other situation where something is mounted on a directory.

     


  • ecryptfs how to manually encrypt your existing home directory or other directory


    Just in case, it is reocmmended to backup the original contents of the directory (especially your home dir) before proceeding.

    Setup ecryptfs

    Run this command: ecryptfs-setup-private

    It will ask you for your login password, this is so that when you login, everything is automatically decrypted by using a passphrase that is wrapped with your login.

    You can hit enter and leave things blank for an autogenerated passphrase (for mounting) or you can enter your own.

    You should have output like below and then, logout and login and see that things are mounted.

    Check that ecryptfs worked

    As we can see things are mounted on /home/mint/Private

    This is the default behavior, and remember that only files and directories inside /home/youruser/Private are actually encrypted.

     


  • How to Reset CIPC Cisco IP Communicator for CME CUCM CallManager


    Just hit **# on the keypad and the CIPC will enable the button in settings for a factory reset.  Sometimes the phone may run into issues or may be unable to register to another tftp server (eg. another CME or CUCM server) due to a bug or maybe due to the security settings tying it to a specific server.

    Step 1 - Click Settings


     

    Step 2 - Hit "**#" on the keypad

    Below is how things look when the phone is still locked. 

     

    After hitting **# you will see the "Erase" button appear like below:

     

     

    Click the "Erase" button and it will be reset.


  • Internet Explorer Cannot Download File "Your security settings do not allow for this file to be downloaded." Security Settings Solution


    By default in most newer Windows installs, you will not be able to download files from "Internet" sites and you'll get this error "Your security settings do not allow for this file to be downloaded."

    Solution to Enable Downloads in IE Internet Explorer

    1.) Go to Settings (button) -> Internet options -> Security (tab)

    2.) Click "Internet" and then the "Custom Level" button.

    3.) Find the following section and set Download to Enabled.

    Downloads: File Download: Enabled (check)

    Solution to enable file downloads in Internet Explorer

    Enable File Downloads in Internet Explorer

    *If you find it is already enabled you are probably in the wrong area under Trusted Sites, make sure you are under "Internet".


  • Linux How To Upgrade To The Latest Kernel Debian Mint Ubuntu


    How to check what kernel version you have/currently running?

    uname -rm
    5.4.0-91-generic x86_64

    The above shows us that we are running 5.4.0-91-generic on the x86_64 architecture.

    The safest way is to stick with the same flavor eg if you're on generic, and say on kernel 5.4.0 then it makes sense to follow what is below.  However, if you are migrating or dual booting between newer hardware (eg. you got a new laptop, server or Desktop that is newer than the age of your kernel), you may want to switch series.

    For example in Ubuntu 20 we can search and see there is Kernel 5.15 which will provide newer hardware support.  If you try to upgrade your existing flavor and kernel version and find it doesn't work, then it's time to do the second method we'll describe later on.

    If you want the latest version of the flavor you have, which is often -generic, then type this:

    If your Linux flavor is something other than generic then change the -generic below.

    sudo apt install linux-image-generic

    The example below is from the Ubuntu 20 live CD.


    Reading package lists... Done
    Building dependency tree       
    Reading state information... Done
    The following additional packages will be installed:
      linux-generic linux-headers-5.4.0-166 linux-headers-5.4.0-166-generic linux-headers-generic linux-image-5.4.0-166-generic linux-modules-5.4.0-166-generic linux-modules-extra-5.4.0-166-generic
    Suggested packages:
      fdutils linux-doc | linux-source-5.4.0 linux-tools
    The following NEW packages will be installed:
      linux-headers-5.4.0-166 linux-headers-5.4.0-166-generic linux-image-5.4.0-166-generic linux-modules-5.4.0-166-generic linux-modules-extra-5.4.0-166-generic
    The following packages will be upgraded:
      linux-generic linux-headers-generic linux-image-generic
    3 upgraded, 5 newly installed, 0 to remove and 685 not upgraded.
    Need to get 77.1 MB of archives.
    After this operation, 380 MB of additional disk space will be used.
    Do you want to continue? [Y/n]

    Second Method Upgrade Kernel Series To The Latest

    Say your kernel series was 5.4 generic and you upgraded to the latest one (at this time in Ubuntu 20 that would be 5.4.0-166) and you find your new hardware is still not supported.   You'll want to do an apt-cache search linux-image and see what the latest series is, as newer kernel series' will probably support your new hardware.  This is likely a case of your hardware not existing when the kernel version/series was created, so there are no valid kernel modules for some of your new hardware.

    You do an apt-cache search linux-image and then grep on generic (or whatever flavor you want).

    As w can see below, Linux 5.15 linux-image-5.15.0-88-generic is the latest version, so we'll install this one, plus the extra modules ( linux-modules-extra) and kernel source (linux-headers).

    sudo apt install linux-modules-5.15.0-88-generic linux-headers-5.15.0-88-generic linux-modules-extra-5.15.0-88-generic

    apt-cache search linux-image-|grep generic
    linux-image-5.4.0-26-generic - Signed kernel image generic
    linux-image-generic - Generic Linux kernel image
    linux-image-generic-hwe-18.04 - Generic Linux kernel image (dummy transitional package)
    linux-image-generic-hwe-18.04-edge - Generic Linux kernel image (dummy transitional package)
    linux-image-generic-hwe-20.04 - Generic Linux kernel image
    linux-image-oem - Depends on the generic kernel image (dummy transitional package)
    linux-image-oem-osp1 - Depends on the generic kernel image (dummy transitional package)
    linux-image-unsigned-5.4.0-26-generic - Linux kernel image for version 5.4.0 on 64 bit x86 SMP
    linux-modules-nvidia-390-5.4.0-26-generic - Linux kernel nvidia modules for version 5.4.0-26
    linux-modules-nvidia-440-5.4.0-26-generic - Linux kernel nvidia modules for version 5.4.0-26
    linux-image-5.11.0-22-generic - Signed kernel image generic
    linux-image-5.11.0-25-generic - Signed kernel image generic
    linux-image-5.11.0-27-generic - Signed kernel image generic
    linux-image-5.11.0-34-generic - Signed kernel image generic
    linux-image-5.11.0-36-generic - Signed kernel image generic
    linux-image-5.11.0-37-generic - Signed kernel image generic
    linux-image-5.11.0-38-generic - Signed kernel image generic
    linux-image-5.11.0-40-generic - Signed kernel image generic
    linux-image-5.11.0-41-generic - Signed kernel image generic
    linux-image-5.11.0-43-generic - Signed kernel image generic
    linux-image-5.11.0-44-generic - Signed kernel image generic
    linux-image-5.11.0-46-generic - Signed kernel image generic
    linux-image-5.13.0-1007-intel - Signed kernel image generic
    linux-image-5.13.0-21-generic - Signed kernel image generic
    linux-image-5.13.0-22-generic - Signed kernel image generic
    linux-image-5.13.0-23-generic - Signed kernel image generic
    linux-image-5.13.0-25-generic - Signed kernel image generic
    linux-image-5.13.0-27-generic - Signed kernel image generic
    linux-image-5.13.0-28-generic - Signed kernel image generic
    linux-image-5.13.0-30-generic - Signed kernel image generic
    linux-image-5.13.0-35-generic - Signed kernel image generic
    linux-image-5.13.0-37-generic - Signed kernel image generic
    linux-image-5.13.0-39-generic - Signed kernel image generic
    linux-image-5.13.0-40-generic - Signed kernel image generic
    linux-image-5.13.0-41-generic - Signed kernel image generic
    linux-image-5.13.0-44-generic - Signed kernel image generic
    linux-image-5.13.0-48-generic - Signed kernel image generic
    linux-image-5.13.0-51-generic - Signed kernel image generic
    linux-image-5.13.0-52-generic - Signed kernel image generic
    linux-image-5.15.0-33-generic - Signed kernel image generic
    linux-image-5.15.0-41-generic - Signed kernel image generic
    linux-image-5.15.0-43-generic - Signed kernel image generic
    linux-image-5.15.0-46-generic - Signed kernel image generic
    linux-image-5.15.0-48-generic - Signed kernel image generic
    linux-image-5.15.0-50-generic - Signed kernel image generic
    linux-image-5.15.0-52-generic - Signed kernel image generic
    linux-image-5.15.0-53-generic - Signed kernel image generic
    linux-image-5.15.0-56-generic - Signed kernel image generic
    linux-image-5.15.0-57-generic - Signed kernel image generic
    linux-image-5.15.0-58-generic - Signed kernel image generic
    linux-image-5.15.0-60-generic - Signed kernel image generic
    linux-image-5.15.0-67-generic - Signed kernel image generic
    linux-image-5.15.0-69-generic - Signed kernel image generic
    linux-image-5.15.0-70-generic - Signed kernel image generic
    linux-image-5.15.0-71-generic - Signed kernel image generic
    linux-image-5.15.0-72-generic - Signed kernel image generic
    linux-image-5.15.0-73-generic - Signed kernel image generic
    linux-image-5.15.0-75-generic - Signed kernel image generic
    linux-image-5.15.0-76-generic - Signed kernel image generic
    linux-image-5.15.0-78-generic - Signed kernel image generic
    linux-image-5.15.0-79-generic - Signed kernel image generic
    linux-image-5.15.0-82-generic - Signed kernel image generic
    linux-image-5.15.0-83-generic - Signed kernel image generic
    linux-image-5.15.0-84-generic - Signed kernel image generic
    linux-image-5.15.0-86-generic - Signed kernel image generic
    linux-image-5.15.0-87-generic - Signed kernel image generic
    linux-image-5.15.0-88-generic - Signed kernel image generic
    linux-image-5.4.0-100-generic - Signed kernel image generic
    linux-image-5.4.0-104-generic - Signed kernel image generic
    linux-image-5.4.0-105-generic - Signed kernel image generic
    linux-image-5.4.0-107-generic - Signed kernel image generic
    linux-image-5.4.0-109-generic - Signed kernel image generic
    linux-image-5.4.0-110-generic - Signed kernel image generic
    linux-image-5.4.0-113-generic - Signed kernel image generic
    linux-image-5.4.0-117-generic - Signed kernel image generic
    linux-image-5.4.0-120-generic - Signed kernel image generic
    linux-image-5.4.0-121-generic - Signed kernel image generic
    linux-image-5.4.0-122-generic - Signed kernel image generic
    linux-image-5.4.0-124-generic - Signed kernel image generic
    linux-image-5.4.0-125-generic - Signed kernel image generic
    linux-image-5.4.0-126-generic - Signed kernel image generic
    linux-image-5.4.0-128-generic - Signed kernel image generic
    linux-image-5.4.0-131-generic - Signed kernel image generic
    linux-image-5.4.0-132-generic - Signed kernel image generic
    linux-image-5.4.0-135-generic - Signed kernel image generic
    linux-image-5.4.0-136-generic - Signed kernel image generic
    linux-image-5.4.0-137-generic - Signed kernel image generic
    linux-image-5.4.0-139-generic - Signed kernel image generic
    linux-image-5.4.0-144-generic - Signed kernel image generic
    linux-image-5.4.0-146-generic - Signed kernel image generic
    linux-image-5.4.0-147-generic - Signed kernel image generic
    linux-image-5.4.0-148-generic - Signed kernel image generic
    linux-image-5.4.0-149-generic - Signed kernel image generic
    linux-image-5.4.0-150-generic - Signed kernel image generic
    linux-image-5.4.0-152-generic - Signed kernel image generic
    linux-image-5.4.0-153-generic - Signed kernel image generic
    linux-image-5.4.0-155-generic - Signed kernel image generic
    linux-image-5.4.0-156-generic - Signed kernel image generic
    linux-image-5.4.0-159-generic - Signed kernel image generic
    linux-image-5.4.0-162-generic - Signed kernel image generic
    linux-image-5.4.0-163-generic - Signed kernel image generic
    linux-image-5.4.0-164-generic - Signed kernel image generic
    linux-image-5.4.0-165-generic - Signed kernel image generic
    linux-image-5.4.0-166-generic - Signed kernel image generic
    linux-image-5.4.0-28-generic - Signed kernel image generic
    linux-image-5.4.0-29-generic - Signed kernel image generic
    linux-image-5.4.0-31-generic - Signed kernel image generic
    linux-image-5.4.0-33-generic - Signed kernel image generic
    linux-image-5.4.0-37-generic - Signed kernel image generic
    linux-image-5.4.0-39-generic - Signed kernel image generic
    linux-image-5.4.0-40-generic - Signed kernel image generic
    linux-image-5.4.0-42-generic - Signed kernel image generic
    linux-image-5.4.0-45-generic - Signed kernel image generic
    linux-image-5.4.0-47-generic - Signed kernel image generic
    linux-image-5.4.0-48-generic - Signed kernel image generic
    linux-image-5.4.0-51-generic - Signed kernel image generic
    linux-image-5.4.0-52-generic - Signed kernel image generic
    linux-image-5.4.0-53-generic - Signed kernel image generic
    linux-image-5.4.0-54-generic - Signed kernel image generic
    linux-image-5.4.0-58-generic - Signed kernel image generic
    linux-image-5.4.0-59-generic - Signed kernel image generic
    linux-image-5.4.0-60-generic - Signed kernel image generic
    linux-image-5.4.0-62-generic - Signed kernel image generic
    linux-image-5.4.0-64-generic - Signed kernel image generic
    linux-image-5.4.0-65-generic - Signed kernel image generic
    linux-image-5.4.0-66-generic - Signed kernel image generic
    linux-image-5.4.0-67-generic - Signed kernel image generic
    linux-image-5.4.0-70-generic - Signed kernel image generic
    linux-image-5.4.0-71-generic - Signed kernel image generic
    linux-image-5.4.0-72-generic - Signed kernel image generic
    linux-image-5.4.0-73-generic - Signed kernel image generic
    linux-image-5.4.0-74-generic - Signed kernel image generic
    linux-image-5.4.0-77-generic - Signed kernel image generic
    linux-image-5.4.0-80-generic - Signed kernel image generic
    linux-image-5.4.0-81-generic - Signed kernel image generic
    linux-image-5.4.0-84-generic - Signed kernel image generic
    linux-image-5.4.0-86-generic - Signed kernel image generic
    linux-image-5.4.0-88-generic - Signed kernel image generic
    linux-image-5.4.0-89-generic - Signed kernel image generic
    linux-image-5.4.0-90-generic - Signed kernel image generic
    linux-image-5.4.0-91-generic - Signed kernel image generic
    linux-image-5.4.0-92-generic - Signed kernel image generic
    linux-image-5.4.0-94-generic - Signed kernel image generic
    linux-image-5.4.0-96-generic - Signed kernel image generic
    linux-image-5.4.0-97-generic - Signed kernel image generic
    linux-image-5.4.0-99-generic - Signed kernel image generic
    linux-image-5.8.0-23-generic - Signed kernel image generic
    linux-image-5.8.0-25-generic - Signed kernel image generic
    linux-image-5.8.0-28-generic - Signed kernel image generic
    linux-image-5.8.0-29-generic - Signed kernel image generic
    linux-image-5.8.0-33-generic - Signed kernel image generic
    linux-image-5.8.0-34-generic - Signed kernel image generic
    linux-image-5.8.0-36-generic - Signed kernel image generic
    linux-image-5.8.0-38-generic - Signed kernel image generic
    linux-image-5.8.0-40-generic - Signed kernel image generic
    linux-image-5.8.0-41-generic - Signed kernel image generic
    linux-image-5.8.0-43-generic - Signed kernel image generic
    linux-image-5.8.0-44-generic - Signed kernel image generic
    linux-image-5.8.0-45-generic - Signed kernel image generic
    linux-image-5.8.0-48-generic - Signed kernel image generic
    linux-image-5.8.0-49-generic - Signed kernel image generic
    linux-image-5.8.0-50-generic - Signed kernel image generic
    linux-image-5.8.0-53-generic - Signed kernel image generic
    linux-image-5.8.0-55-generic - Signed kernel image generic
    linux-image-5.8.0-59-generic - Signed kernel image generic
    linux-image-5.8.0-63-generic - Signed kernel image generic
    linux-image-generic-hwe-20.04-edge - Generic Linux kernel image
    linux-image-unsigned-5.11.0-22-generic - Linux kernel image for version 5.11.0 on 64 bit x86 SMP
    linux-image-unsigned-5.11.0-25-generic - Linux kernel image for version 5.11.0 on 64 bit x86 SMP
    linux-image-unsigned-5.11.0-27-generic - Linux kernel image for version 5.11.0 on 64 bit x86 SMP
    linux-image-unsigned-5.11.0-34-generic - Linux kernel image for version 5.11.0 on 64 bit x86 SMP
    linux-image-unsigned-5.11.0-36-generic - Linux kernel image for version 5.11.0 on 64 bit x86 SMP
    linux-image-unsigned-5.11.0-37-generic - Linux kernel image for version 5.11.0 on 64 bit x86 SMP
    linux-image-unsigned-5.11.0-38-generic - Linux kernel image for version 5.11.0 on 64 bit x86 SMP
    linux-image-unsigned-5.11.0-40-generic - Linux kernel image for version 5.11.0 on 64 bit x86 SMP
    linux-image-unsigned-5.11.0-41-generic - Linux kernel image for version 5.11.0 on 64 bit x86 SMP
    linux-image-unsigned-5.11.0-43-generic - Linux kernel image for version 5.11.0 on 64 bit x86 SMP
    linux-image-unsigned-5.11.0-44-generic - Linux kernel image for version 5.11.0 on 64 bit x86 SMP
    linux-image-unsigned-5.11.0-46-generic - Linux kernel image for version 5.11.0 on 64 bit x86 SMP
    linux-image-unsigned-5.13.0-21-generic - Linux kernel image for version 5.13.0 on 64 bit x86 SMP
    linux-image-unsigned-5.13.0-22-generic - Linux kernel image for version 5.13.0 on 64 bit x86 SMP
    linux-image-unsigned-5.13.0-23-generic - Linux kernel image for version 5.13.0 on 64 bit x86 SMP
    linux-image-unsigned-5.13.0-25-generic - Linux kernel image for version 5.13.0 on 64 bit x86 SMP
    linux-image-unsigned-5.13.0-27-generic - Linux kernel image for version 5.13.0 on 64 bit x86 SMP
    linux-image-unsigned-5.13.0-28-generic - Linux kernel image for version 5.13.0 on 64 bit x86 SMP
    linux-image-unsigned-5.13.0-30-generic - Linux kernel image for version 5.13.0 on 64 bit x86 SMP
    linux-image-unsigned-5.13.0-35-generic - Linux kernel image for version 5.13.0 on 64 bit x86 SMP
    linux-image-unsigned-5.13.0-37-generic - Linux kernel image for version 5.13.0 on 64 bit x86 SMP
    linux-image-unsigned-5.13.0-39-generic - Linux kernel image for version 5.13.0 on 64 bit x86 SMP
    linux-image-unsigned-5.13.0-40-generic - Linux kernel image for version 5.13.0 on 64 bit x86 SMP
    linux-image-unsigned-5.13.0-41-generic - Linux kernel image for version 5.13.0 on 64 bit x86 SMP
    linux-image-unsigned-5.13.0-44-generic - Linux kernel image for version 5.13.0 on 64 bit x86 SMP
    linux-image-unsigned-5.13.0-48-generic - Linux kernel image for version 5.13.0 on 64 bit x86 SMP
    linux-image-unsigned-5.13.0-51-generic - Linux kernel image for version 5.13.0 on 64 bit x86 SMP
    linux-image-unsigned-5.13.0-52-generic - Linux kernel image for version 5.13.0 on 64 bit x86 SMP
    linux-image-unsigned-5.15.0-33-generic - Linux kernel image for version 5.15.0 on 64 bit x86 SMP
    linux-image-unsigned-5.15.0-41-generic - Linux kernel image for version 5.15.0 on 64 bit x86 SMP
    linux-image-unsigned-5.15.0-43-generic - Linux kernel image for version 5.15.0 on 64 bit x86 SMP
    linux-image-unsigned-5.15.0-46-generic - Linux kernel image for version 5.15.0 on 64 bit x86 SMP
    linux-image-unsigned-5.15.0-48-generic - Linux kernel image for version 5.15.0 on 64 bit x86 SMP
    linux-image-unsigned-5.15.0-50-generic - Linux kernel image for version 5.15.0 on 64 bit x86 SMP
    linux-image-unsigned-5.15.0-52-generic - Linux kernel image for version 5.15.0 on 64 bit x86 SMP
    linux-image-unsigned-5.15.0-53-generic - Linux kernel image for version 5.15.0 on 64 bit x86 SMP
    linux-image-unsigned-5.15.0-56-generic - Linux kernel image for version 5.15.0 on 64 bit x86 SMP
    linux-image-unsigned-5.15.0-57-generic - Linux kernel image for version 5.15.0 on 64 bit x86 SMP
    linux-image-unsigned-5.15.0-58-generic - Linux kernel image for version 5.15.0 on 64 bit x86 SMP
    linux-image-unsigned-5.15.0-60-generic - Linux kernel image for version 5.15.0 on 64 bit x86 SMP
    linux-image-unsigned-5.15.0-67-generic - Linux kernel image for version 5.15.0 on 64 bit x86 SMP
    linux-image-unsigned-5.15.0-69-generic - Linux kernel image for version 5.15.0 on 64 bit x86 SMP
    linux-image-unsigned-5.15.0-70-generic - Linux kernel image for version 5.15.0 on 64 bit x86 SMP
    linux-image-unsigned-5.15.0-71-generic - Linux kernel image for version 5.15.0 on 64 bit x86 SMP
    linux-image-unsigned-5.15.0-72-generic - Linux kernel image for version 5.15.0 on 64 bit x86 SMP
    linux-image-unsigned-5.15.0-73-generic - Linux kernel image for version 5.15.0 on 64 bit x86 SMP
    linux-image-unsigned-5.15.0-75-generic - Linux kernel image for version 5.15.0 on 64 bit x86 SMP
    linux-image-unsigned-5.15.0-76-generic - Linux kernel image for version 5.15.0 on 64 bit x86 SMP
    linux-image-unsigned-5.15.0-78-generic - Linux kernel image for version 5.15.0 on 64 bit x86 SMP
    linux-image-unsigned-5.15.0-79-generic - Linux kernel image for version 5.15.0 on 64 bit x86 SMP
    linux-image-unsigned-5.15.0-82-generic - Linux kernel image for version 5.15.0 on 64 bit x86 SMP
    linux-image-unsigned-5.15.0-83-generic - Linux kernel image for version 5.15.0 on 64 bit x86 SMP
    linux-image-unsigned-5.15.0-84-generic - Linux kernel image for version 5.15.0 on 64 bit x86 SMP
    linux-image-unsigned-5.15.0-86-generic - Linux kernel image for version 5.15.0 on 64 bit x86 SMP
    linux-image-unsigned-5.15.0-87-generic - Linux kernel image for version 5.15.0 on 64 bit x86 SMP
    linux-image-unsigned-5.15.0-88-generic - Linux kernel image for version 5.15.0 on 64 bit x86 SMP
    linux-image-unsigned-5.4.0-100-generic - Linux kernel image for version 5.4.0 on 64 bit x86 SMP
    linux-image-unsigned-5.4.0-104-generic - Linux kernel image for version 5.4.0 on 64 bit x86 SMP
    linux-image-unsigned-5.4.0-105-generic - Linux kernel image for version 5.4.0 on 64 bit x86 SMP
    linux-image-unsigned-5.4.0-107-generic - Linux kernel image for version 5.4.0 on 64 bit x86 SMP
    linux-image-unsigned-5.4.0-109-generic - Linux kernel image for version 5.4.0 on 64 bit x86 SMP
    linux-image-unsigned-5.4.0-110-generic - Linux kernel image for version 5.4.0 on 64 bit x86 SMP
    linux-image-unsigned-5.4.0-113-generic - Linux kernel image for version 5.4.0 on 64 bit x86 SMP
    linux-image-unsigned-5.4.0-117-generic - Linux kernel image for version 5.4.0 on 64 bit x86 SMP
    linux-image-unsigned-5.4.0-120-generic - Linux kernel image for version 5.4.0 on 64 bit x86 SMP
    linux-image-unsigned-5.4.0-121-generic - Linux kernel image for version 5.4.0 on 64 bit x86 SMP
    linux-image-unsigned-5.4.0-122-generic - Linux kernel image for version 5.4.0 on 64 bit x86 SMP
    linux-image-unsigned-5.4.0-124-generic - Linux kernel image for version 5.4.0 on 64 bit x86 SMP
    linux-image-unsigned-5.4.0-125-generic - Linux kernel image for version 5.4.0 on 64 bit x86 SMP
    linux-image-unsigned-5.4.0-126-generic - Linux kernel image for version 5.4.0 on 64 bit x86 SMP
    linux-image-unsigned-5.4.0-128-generic - Linux kernel image for version 5.4.0 on 64 bit x86 SMP
    linux-image-unsigned-5.4.0-131-generic - Linux kernel image for version 5.4.0 on 64 bit x86 SMP
    linux-image-unsigned-5.4.0-132-generic - Linux kernel image for version 5.4.0 on 64 bit x86 SMP
    linux-image-unsigned-5.4.0-135-generic - Linux kernel image for version 5.4.0 on 64 bit x86 SMP
    linux-image-unsigned-5.4.0-136-generic - Linux kernel image for version 5.4.0 on 64 bit x86 SMP
    linux-image-unsigned-5.4.0-137-generic - Linux kernel image for version 5.4.0 on 64 bit x86 SMP
    linux-image-unsigned-5.4.0-139-generic - Linux kernel image for version 5.4.0 on 64 bit x86 SMP
    linux-image-unsigned-5.4.0-144-generic - Linux kernel image for version 5.4.0 on 64 bit x86 SMP
    linux-image-unsigned-5.4.0-146-generic - Linux kernel image for version 5.4.0 on 64 bit x86 SMP
    linux-image-unsigned-5.4.0-147-generic - Linux kernel image for version 5.4.0 on 64 bit x86 SMP
    linux-image-unsigned-5.4.0-148-generic - Linux kernel image for version 5.4.0 on 64 bit x86 SMP
    linux-image-unsigned-5.4.0-149-generic - Linux kernel image for version 5.4.0 on 64 bit x86 SMP
    linux-image-unsigned-5.4.0-150-generic - Linux kernel image for version 5.4.0 on 64 bit x86 SMP
    linux-image-unsigned-5.4.0-152-generic - Linux kernel image for version 5.4.0 on 64 bit x86 SMP
    linux-image-unsigned-5.4.0-153-generic - Linux kernel image for version 5.4.0 on 64 bit x86 SMP
    linux-image-unsigned-5.4.0-155-generic - Linux kernel image for version 5.4.0 on 64 bit x86 SMP
    linux-image-unsigned-5.4.0-156-generic - Linux kernel image for version 5.4.0 on 64 bit x86 SMP
    linux-image-unsigned-5.4.0-159-generic - Linux kernel image for version 5.4.0 on 64 bit x86 SMP
    linux-image-unsigned-5.4.0-162-generic - Linux kernel image for version 5.4.0 on 64 bit x86 SMP
    linux-image-unsigned-5.4.0-163-generic - Linux kernel image for version 5.4.0 on 64 bit x86 SMP
    linux-image-unsigned-5.4.0-164-generic - Linux kernel image for version 5.4.0 on 64 bit x86 SMP
    linux-image-unsigned-5.4.0-165-generic - Linux kernel image for version 5.4.0 on 64 bit x86 SMP
    linux-image-unsigned-5.4.0-166-generic - Linux kernel image for version 5.4.0 on 64 bit x86 SMP
    linux-image-unsigned-5.4.0-28-generic - Linux kernel image for version 5.4.0 on 64 bit x86 SMP
    linux-image-unsigned-5.4.0-29-generic - Linux kernel image for version 5.4.0 on 64 bit x86 SMP
    linux-image-unsigned-5.4.0-31-generic - Linux kernel image for version 5.4.0 on 64 bit x86 SMP
    linux-image-unsigned-5.4.0-33-generic - Linux kernel image for version 5.4.0 on 64 bit x86 SMP
    linux-image-unsigned-5.4.0-37-generic - Linux kernel image for version 5.4.0 on 64 bit x86 SMP
    linux-image-unsigned-5.4.0-39-generic - Linux kernel image for version 5.4.0 on 64 bit x86 SMP
    linux-image-unsigned-5.4.0-40-generic - Linux kernel image for version 5.4.0 on 64 bit x86 SMP
    linux-image-unsigned-5.4.0-42-generic - Linux kernel image for version 5.4.0 on 64 bit x86 SMP
    linux-image-unsigned-5.4.0-45-generic - Linux kernel image for version 5.4.0 on 64 bit x86 SMP
    linux-image-unsigned-5.4.0-47-generic - Linux kernel image for version 5.4.0 on 64 bit x86 SMP
    linux-image-unsigned-5.4.0-48-generic - Linux kernel image for version 5.4.0 on 64 bit x86 SMP
    linux-image-unsigned-5.4.0-51-generic - Linux kernel image for version 5.4.0 on 64 bit x86 SMP
    linux-image-unsigned-5.4.0-52-generic - Linux kernel image for version 5.4.0 on 64 bit x86 SMP
    linux-image-unsigned-5.4.0-53-generic - Linux kernel image for version 5.4.0 on 64 bit x86 SMP
    linux-image-unsigned-5.4.0-54-generic - Linux kernel image for version 5.4.0 on 64 bit x86 SMP
    linux-image-unsigned-5.4.0-58-generic - Linux kernel image for version 5.4.0 on 64 bit x86 SMP
    linux-image-unsigned-5.4.0-59-generic - Linux kernel image for version 5.4.0 on 64 bit x86 SMP
    linux-image-unsigned-5.4.0-60-generic - Linux kernel image for version 5.4.0 on 64 bit x86 SMP
    linux-image-unsigned-5.4.0-62-generic - Linux kernel image for version 5.4.0 on 64 bit x86 SMP
    linux-image-unsigned-5.4.0-64-generic - Linux kernel image for version 5.4.0 on 64 bit x86 SMP
    linux-image-unsigned-5.4.0-65-generic - Linux kernel image for version 5.4.0 on 64 bit x86 SMP
    linux-image-unsigned-5.4.0-66-generic - Linux kernel image for version 5.4.0 on 64 bit x86 SMP
    linux-image-unsigned-5.4.0-67-generic - Linux kernel image for version 5.4.0 on 64 bit x86 SMP
    linux-image-unsigned-5.4.0-70-generic - Linux kernel image for version 5.4.0 on 64 bit x86 SMP
    linux-image-unsigned-5.4.0-71-generic - Linux kernel image for version 5.4.0 on 64 bit x86 SMP
    linux-image-unsigned-5.4.0-72-generic - Linux kernel image for version 5.4.0 on 64 bit x86 SMP
    linux-image-unsigned-5.4.0-73-generic - Linux kernel image for version 5.4.0 on 64 bit x86 SMP
    linux-image-unsigned-5.4.0-74-generic - Linux kernel image for version 5.4.0 on 64 bit x86 SMP
    linux-image-unsigned-5.4.0-77-generic - Linux kernel image for version 5.4.0 on 64 bit x86 SMP
    linux-image-unsigned-5.4.0-80-generic - Linux kernel image for version 5.4.0 on 64 bit x86 SMP
    linux-image-unsigned-5.4.0-81-generic - Linux kernel image for version 5.4.0 on 64 bit x86 SMP
    linux-image-unsigned-5.4.0-84-generic - Linux kernel image for version 5.4.0 on 64 bit x86 SMP
    linux-image-unsigned-5.4.0-86-generic - Linux kernel image for version 5.4.0 on 64 bit x86 SMP
    linux-image-unsigned-5.4.0-88-generic - Linux kernel image for version 5.4.0 on 64 bit x86 SMP
    linux-image-unsigned-5.4.0-89-generic - Linux kernel image for version 5.4.0 on 64 bit x86 SMP
    linux-image-unsigned-5.4.0-90-generic - Linux kernel image for version 5.4.0 on 64 bit x86 SMP
    linux-image-unsigned-5.4.0-91-generic - Linux kernel image for version 5.4.0 on 64 bit x86 SMP
    linux-image-unsigned-5.4.0-92-generic - Linux kernel image for version 5.4.0 on 64 bit x86 SMP
    linux-image-unsigned-5.4.0-94-generic - Linux kernel image for version 5.4.0 on 64 bit x86 SMP
    linux-image-unsigned-5.4.0-96-generic - Linux kernel image for version 5.4.0 on 64 bit x86 SMP
    linux-image-unsigned-5.4.0-97-generic - Linux kernel image for version 5.4.0 on 64 bit x86 SMP
    linux-image-unsigned-5.4.0-99-generic - Linux kernel image for version 5.4.0 on 64 bit x86 SMP
    linux-image-unsigned-5.8.0-23-generic - Linux kernel image for version 5.8.0 on 64 bit x86 SMP
    linux-image-unsigned-5.8.0-25-generic - Linux kernel image for version 5.8.0 on 64 bit x86 SMP
    linux-image-unsigned-5.8.0-28-generic - Linux kernel image for version 5.8.0 on 64 bit x86 SMP
    linux-image-unsigned-5.8.0-29-generic - Linux kernel image for version 5.8.0 on 64 bit x86 SMP
    linux-image-unsigned-5.8.0-33-generic - Linux kernel image for version 5.8.0 on 64 bit x86 SMP
    linux-image-unsigned-5.8.0-34-generic - Linux kernel image for version 5.8.0 on 64 bit x86 SMP
    linux-image-unsigned-5.8.0-36-generic - Linux kernel image for version 5.8.0 on 64 bit x86 SMP
    linux-image-unsigned-5.8.0-38-generic - Linux kernel image for version 5.8.0 on 64 bit x86 SMP
    linux-image-unsigned-5.8.0-40-generic - Linux kernel image for version 5.8.0 on 64 bit x86 SMP
    linux-image-unsigned-5.8.0-41-generic - Linux kernel image for version 5.8.0 on 64 bit x86 SMP
    linux-image-unsigned-5.8.0-43-generic - Linux kernel image for version 5.8.0 on 64 bit x86 SMP
    linux-image-unsigned-5.8.0-44-generic - Linux kernel image for version 5.8.0 on 64 bit x86 SMP
    linux-image-unsigned-5.8.0-45-generic - Linux kernel image for version 5.8.0 on 64 bit x86 SMP
    linux-image-unsigned-5.8.0-48-generic - Linux kernel image for version 5.8.0 on 64 bit x86 SMP
    linux-image-unsigned-5.8.0-49-generic - Linux kernel image for version 5.8.0 on 64 bit x86 SMP
    linux-image-unsigned-5.8.0-50-generic - Linux kernel image for version 5.8.0 on 64 bit x86 SMP
    linux-image-unsigned-5.8.0-53-generic - Linux kernel image for version 5.8.0 on 64 bit x86 SMP
    linux-image-unsigned-5.8.0-55-generic - Linux kernel image for version 5.8.0 on 64 bit x86 SMP
    linux-image-unsigned-5.8.0-59-generic - Linux kernel image for version 5.8.0 on 64 bit x86 SMP
    linux-image-unsigned-5.8.0-63-generic - Linux kernel image for version 5.8.0 on 64 bit x86 SMP
    linux-modules-nvidia-390-5.4.0-28-generic - Linux kernel nvidia modules for version 5.4.0-28
    linux-modules-nvidia-440-5.4.0-28-generic - Linux kernel nvidia modules for version 5.4.0-28

     

     

    References: https://wiki.debian.org/HowToUpgradeKernel


  • Firefox how to restore and backup saved passwords and history which files/location


    The passwords are stored in the following locations on Unix/Linux:

    The directory is usually inside your home like this:

    ~/.mozilla/firefox

    logins.json contains the locations, username and password

    key*.db (usually then name could be key3.db or key4.db)

    Without the key file you will not see any passwords in Firefox as it is required to in order to decrypt the contents of logins.json

    Copy those files and restore them to the current machine/profile and you should be able to access your old passwords.

    How to backup and restore browsing history?

    Just copy and restore places.sqlite


  • Linux How To echo as root solution to use tee permission denied solution Ubuntu Debian Mint Redhat CentOS


    The issue is when you need to echo something as root/sudo, that it doesn't work.  You can never do a sudo echo to an output file as you'd expect.

    Take an example to clear out wasted RAM buffers/cache like this:

    sudo echo 1 > /proc/sys/vm/drop_caches
    -bash: /proc/sys/vm/drop_caches: Permission denied

    The solution is to run tee as sudo/root

    What we do is echo 1, but then pipe it to the "tee" command as sudo, which then writes the value to the proc entry drop_caches.

    echo 1|sudo tee /proc/sys/vm/drop_caches
     

    This will of course work whenever you need to echo something that requires root privileges.

    Another example of using echo with tee.


  • Linux how to keep command line bash process running if you are disconnected or need to logout of SSH remotely


    So you started a process or other important task that is remote but it is in the foreground and on a pts.  This means if you background with Ctrl + Z or otherwise logout or get disconnected that the process will be stopped.

    Here is how you can solve the problem:

    1.) Hit Ctrl + Z to suspend the process.

    2.) Type bg to restore the process into the background.  If you do a ps aux on the process you will see it was restored with the & at the end, which puts it into the background.

    Now there is no need to restart the task.

    What is a more permanent solution to keep a terminal window open without manually backgrounding processes?

    You can use the "screen" tool which gives you multiple virtual terminals that stay open even if you are disconnected.


  • Linux swapping too much? How to check the swappiness and stop swapping


    We could always disable swap but this would normally be a bad idea unless you have an incredible amount of RAM and a workload that will never exceed it.  However, for live/containerized and high performance environments it could be desirable.

    Another middle ground may be to set swappiness to a lower number.

    You may also want to clear your kernel's cache, which could be eating up RAM unnecessarily by clearing buffers/cache.

    Swappiness is the tendency and how aggressively or passively you want to use swap space

    swappiness is a numeric value between 100 and 0, with 100 being the most aggressive and 0 being the least likely to swap.

    How to check your current swappiness level?

    Here is an example on Ubuntu 20's defaults:

    cat /proc/sys/vm/swappiness
    60

    We can see it is currently at level 60, which is a slight bias toward swapping more aggressively.

    How can we temporarily change swappiness?

    Just enter the numeric value and echo it into the swappiness entry under proc.

    echo 30 > /proc/sys/vm/swappiness

    How can we make the change permanent?

    Edit /etc/sysctl.conf and add this:

    vm.swappiness=30


  • request_module: runaway loop modprobe binfmt-464c Kernel panic - not syncing: No init found Pid: 1, comm: swapper/0 Not tainted solution


    request_module: runaway loop modprobe binfmt-464c Kernel panic - not syncing: No init found Pid: 1, comm: swapper/0 Not tainted

    This is usually caused by a mismatch in architecture and happens frequently in development environments.

    Here is a example of what caused this issue:

    1. Your binaries are based on one architecture
    2. Your kernel was compiled with another architecture.

    Why does this happen?

    Perhaps you migrated your dev environment and chrooted into it, in a new architecture or perhaps you migrated to newer hardware with a different architecture (eg. your dev container is now running on a different architecture than the original).  When you make your kernel, it will by default compile for the active architecture (eg. if you are in a 64 bit x64 kernel then it will compile the kernel as x64 even if your kernel config specified ARM or i386).

    A good hint that this is happening is if you have the same kernel, same config but it is asking you questions about enabling different kernel modules and drivers.  It is likely because of the change in architecture.

    This is a frequent cause of the issue that leads to the mismatch and which is why it tries to modprobe binfmt-464c module to try to try make the non-compatible binaries work.

    How to avoid this?

    Never migrate or one simple way is when you make your kernel specify the architecture using the ARCH= switch.

    make ARCH=i386

     


  • How To Add Multiple SSH Keys Ubuntu Mint Linux Debian Redhat


    By default if you create a private key for SSH, it will create something like .ssh/id_rsa

    Linux will always search for and offer this key when connecting to servers. 

    If you put extra keys in your .ssh directory like id_rsa_realtechtalk.com, they will be ignored by default and NOT used or offered (you can verify this with ssh -v) and see it is not being offered.

    Here is how you add the extra SSH keys so they are all offered:

    #this gives us the PID of the SSH agent otherwise our shell won't know how to communicate with the agent which would cuase ssh-add to fail (this is usually only the case if you have a remote ssh session and are not physically on the actual host).

    eval `ssh-agent -s`

    The actual output of the above starts the ssh-agent and exports the SSH_AUTH_SOCK and SSH_AGENT_PID variables.

    SSH_AUTH_SOCK=/tmp/ssh-adfasdf3Bq/agent.312027; export SSH_AUTH_SOCK;
    SSH_AGENT_PID=35028; export SSH_AGENT_PID;

    #this adds our file id_rsa_realtechtalk.com (you should adjust to the actual path and name of your SSH key file that you wish to be offered when connecting to remote hosts)

    ssh-add id_rsa_realtechtalk.com

    After this you should be able to be able to connect via SSH/SCP using your newly added key and all keys should be offered.

    How can you see which SSH keys are available and added?

    ssh-add -l

    root@e2ac5b0ec2d0:/# ssh-add -l  
    The agent has no identities.

    If you added your keys you should see something like this:

    ssh-add -l
    2048 SHA256:pj53UXwoF490CDaKqlrA9MYwpVYL3+ynzrV1Sk/aNyM root@e2ac5b0ec2d0 (RSA)

    Error when running ssh-add -l

    Could not open a connection to your authentication agent.
     

    You need to run ssh-agent like this: eval `ssh-agent -s`

    Again this happens when you are on a remote host and requires you to run ssh-agent like above.

    ssh-agent does not work over remote ssh session

    If you normally work from the GUI (eg. Mate Desktop, Gnome, KDE) your SSH_AUTH_SOCK are probably something like /run/user/5200/keyring/ssh

    The SSH_AGENT_PID would be the PID of the correct agent.

    This happens because the environment variable SSH_AUTH_SOCK and SSH_AGENT_PID is not set by default when you login remotely by ssh.

    How do we fix it? Normally this will be enough to fix it (even without the SSH_AGENT_PID):

    export SSH_AUTH_SOCK="/run/user/5200/keyring/ssh"

    Change the 5200 to the UID of your user that normally authenticates with the keys that you want.

    You could make the above automatic by adding the export command to ~/.bashrc
     


  • ecryptfs how to change default mount location from Private Ubuntu Debian Centos How


    In a lot of distros like Debian, ecryptfs will mount itself in /home/yourusername/Private

    This is controlled by Private.mnt which may contain the mount path like this:

    /home/yourusername/Private

    Change the default mount location of ecryptfs by modifying this file:

    home/.ecryptfs/yourusername/.ecryptfs/Private.mnt

    After you unmount and relogin, you should find ecryptfs is now mounted in the updated path specified in Private.mnt


  • bash: apt-add-repository: command not found solved solution fix


    Getting this error "bash: apt-add-repository: command not found" ?

    You need to install the software-properties-common to solve the error:

    sudo apt-get install software-properties-common