/ - rtt - IT Resource

  • How to download gajim 0.16.9 XMPP/Jabber client so you can use OMEMO encryption


    #Linux Mint 18.2 how to install gajim .16.9 so you can use OMEMO encryption: sudo apt-get install python-axolotl python-nbxmpp wget https://gajim.org/downloads/0.16/gajim-0.16.9.tar.gz tar -zxvf gajim-0.16.9.tar.gz cd gajim-0.16.9 ./autogen.sh ;make;sudo make install #if you get this error you need to get a newer python-nbxmpp from here: gajim Gajim needs python-nbxmpp >= 0.6.1 to run. Quiting...........
  • hwloc-nox set CPU affinity in Linux


    sudo apt-get install  hwloc-nox Reading package lists... Done Building dependency tree       Reading state information... Done The following NEW packages will be installed:   hwloc-nox 0 upgraded, 1 newly installed, 0 to remove and 530 not upgraded. Need to get 151 kB of archives. After this operation, 453 kB of additional disk space will be used. Get:1 http://archive.ubuntu.com/ubunt........
  • Debian/Ubuntu/Mint Linux How To Set VLAN in /etc/network/interfaces


    You can find many ways to specify the VLAN in your network configuration but I find this is the simplest and quickest. In this case we are talking about a bridged adapter "vmbr0" but it works even if you just had a normal non-bridged interface. The key here is that in vmbr0 you'll notice there is no IP address.  We just specify "manual". Below it is a similar stanza for "vmbr0.58" in this case 58 represents the VLAN (change........
  • ./xmr-stak: error while loading shared libraries: libmicrohttpd.so.10: cannot open shared object file: No such file or directory


    The solution is just to install libmicrohttpd-dev ./xmr-stak ./xmr-stak: error while loading shared libraries: libmicrohttpd.so.10: cannot open shared object file: No such file or directory libmicrohttpd libmicrohttpd10 - library embedding HTTP server functionality libmicrohttpd-dbg - library embedding HTTP server functionality (debug) libmicrohttpd-dev - library embedding HTTP server functionality (development) $ sudo apt-get i........
  • Debian Mint Ubuntu compiling xmr-stak


    sudo apt-get install libcurl4-openssl-dev git build-essential autotools-dev autoconf libcurl3 sudo apt-get install libcurl4-gnutls-dev git clone https://github.com/wolf9466/cpuminer-multi sudo apt-get install cmake  libpthread-* libmicrohttpd-dev libssl-dev libhwloc-dev git clone https://github.com/fireice-uk/xmr-stak-cpu.git make install cd bin chmod +x xmr-stak-cpu ./xmr-stak -O xmr........
  • linux mint image convert menu option missing solution


    I already have the caja-image-converter option installed but it shows nothing. Weirdly enough if you install nemo and nautilus converter it does show and work inside caja: The solution is to install *-image-converter sudo apt-get install *-image-converter Reading package lists... Done Building dependency tree       Reading state information... Done Note, selecting 'n........
  • How to qemu-kvm enable bridged networking in Debian Ubuntu Linux Mint on KVM containers


    I've read a few guides about this but they didn't work for me. sudo apt-get install bridge-utils #don't think the above is enough it won't work still even though you have by default an /etc/qemu-ifup that handles it if you have the right tools and setup sudo qemu-system-x86_64 -net tap -net nic -enable-kvm -cpu host,vmx=on ~/VirtualBox VMs/vsphere-vcenter/vsphere-vcenter.vdi W: /etc/qemu-ifup: no bridge for guest interface foun........
  • Install NFS (Network File System) On Debian Linux Ubuntu Mint Howto


    sudo apt-get install nfs-kernel-server #oops there are no exports so it won't startsudo /etc/init.d/nfs-kernel-server start * Not starting NFS kernel daemon: no exports. #we will use the /tmp/nfstestshare directory for our NFS share mkdir /tmp/nfstestshare #add it to /etc/exports (basically what NFS checks to determine what to make an NFS share) /tmp/nfstestshare 192.168.1.5(rw,sync,........
  • not allowed to execute '/usr/bin/apt-get install eclipse' as root linux sudo user permisson issue and solution


    This is most likely to happen on a normal GUI system like Ubuntu or Linux Mint.  If you or the user is meant to have sudo / root privileges it is as simple as editing the following files: Now assume your username is "iamtheuser" vi /etc/group adm:x:4:syslog,iamtheuser sudo:x:27:anotheruser,iamtheuser Find the above lines and add a comma and "ia........
  • Linux Mint Black Screen after boot no graphics solution


    This is not the normal "black screen" issue and I was shocked to eventually find out why.  The normal advice of reconfiguring Xorg didn't work.  Even booting into "Recovery Mode" did not help. Here is the short end of the stick that fixed it: sudo apt-get install mdm mate-desktop-environment Yes you got it right, mdm and the mate-desktop-environment / gnome were somehow uninstalled.  This must be whe........
  • Linux Ubuntu Mint Debian cannot play xvid,x264,mp4 or any videos codec issue - xplayer Could not initialize supporting library.


    In xplayer I get the following error "Could not initialize supporting library.".  It actually looks more like a gstreamer issue. For those wondering what the default video player is called it is "xvid" and not "totem" anymore like previous versions. Basically it looks like some codecs are missing when I uninstalled another program it uninstalled other programs and codecs that it shouldn't have. I've tried installing all the gstre........
  • Linux Mint Ubuntu Debian How To Disable Webcam Automatically Onboot To Prevent Spying and Privacy Violations


    It is well known hackers, the NSA, CIA and other groups have created malware to secretly turn on your webcam and microphone on your phone, tv etc.. But fortunately on our computers and laptops we have some options. Most webcams use the "uvcvideo" kernel module / driver.  You can disable this in two ways on boot. I recommend both just as a failsafe.  Disable it on rc.local once your system boots automatically Add the followi........
  • Debian Linux Mint Ubuntu Disable Automatic apt-get update


    sudo chmod 000 /etc/cron.daily/apt-compat   This is the easiest way to disable the cron without anything more invasive like deleting the file. After that you won't have anymore apt-get's starting. This can be critical for systems without much extra RAM that is not in use.  I've seen systems that have swapped and crashed over apt-get.........
  • How To Install Seamonkey Web Browser on Debian Ubuntu Linux Mint


    It's a little tricky if you are running a 64-bit OS which most people will be. The weird thing is that the Seamonkey website for Linux seems to only provide a 32-bit download. seamonkey-2.49.2.tar.bz2 First unpack it tar -jxvf seamonkey-2.49.2.tar.bz2   Try to run it  ./seamonkey XPCOMGlueLoad error for file /home/queenlazina/Downloads/seamonkey/libmozgtk.so: lib........
  • Linux Mint/Ubuntu/Debian apt how to downgrade a package


    First of all check to see which version if any you have available for a downgrade: apt-cache showpkg packagename Downgrade/Install old package: apt-get install package=version Example apt-cache showpkg caja Package: caja Versions: 1.10.3-1+rafaela (/var/lib/apt/lists/packages.linuxmint.com_dists_rafaela_import_binary-amd64_Packages) (/var/........
  • Ubuntu Linux Mint How To Exclude Stop Package from being Upgraded or Installed


    In Debian/Ubuntu this is called "holding". To hold/exclude a package from being installed or upgraded: sudo apt-mark hold packagename To allow the upgrade/installation unhold: sudo apt-mark unhold packagename........
  • kdenlive titles/text renders as white screen when using .sh script


    When using the .sh script the rendering doesn't work after an upgrade of related packages to kdenlive.   kdenlive (kdenlive:amd64 (4:17.04.1+git201705191233~ubuntu16.04.1)) with affine or composite transitions was fine but is now broken during the time of transition it is just a white screen. The previous version was fine: kdenlive:amd64 (4:17.04.1+git201705191233~ubuntu16.04.1 But now I can't find it or install it:........
  • /usr/bin/ld: cannot find -lboost_system-mt-s /usr/bin/ld: cannot find -lboost_filesystem-mt-s /usr/bin/ld: cannot find -lboost_program_options-mt-s /usr/bin/ld: cannot find -lboost_thread-mt-s collect2: error: ld returned 1 exit status make: *** [cag


    cagecoin linux compile: sudo apt-get install qt4-qmake libqt4-dev build-essential libboost-dev libboost-system-dev         libboost-filesystem-dev libboost-program-options-dev libboost-thread-dev         libssl-dev libdb++-dev libminiupnpc-dev Solution:  sed -i s/"BOOST_LIB_SUFFIX=-mt-s"/"#BOOST_LIB_SU........
  • Wine uninstalled broken on Linux Mint


    Solution: Aptitude is very smart and fixed the issues it was because of nvidia cuda and opencl and nothing else suggested or hinted this using apt sudo aptitude install wine The following NEW packages will be installed:   ocl-icd-libopencl1{ab} ocl-icd-libopencl1:i386{ab} wine wine1.6   wine1.6-amd64{a} wine1.6-i386:i386{a} The following packages will be REMOVED:........
  • ffmpeg Unable to Use Hardware Encoding with Nvidia 3.40 Driver and GT210 card


    I believe from what I've read that this card's driver doesn't support the features after trying all known troubleshooting methods. ffmpeg -i uservideoRendered.mp4 -filter:v hwupload_cuda,scale_npp=w=1920:h=1080:format=nv12:interp_algo=lanczos,hwdownload -c:v hevc_nvenc -profile main -preset slow -rc vbr_hq -c:a copy uservideoRendered.mp4-test ffmpeg -i uservideoRendered.mp4 -filter:v hwupload_cuda,scale_npp=w=1920:h=1080:format=nv12:interp_algo=lanczos,hwdownload........
  • ffmpeg Linux Mint download, compile and install howto


    #if you have nvidia make sure you install the nvidia-cuda-toolkit so hardware acceleration can be used wget http://ffmpeg.org/releases/ffmpeg-3.3.2.tar.bz2 tar -jxvf ffmpeg-3.3.2.tar.bz2 cd  ffmpeg-3.3.2/ ./configure --disable-yasm install prefix            /usr/local source path              ........
  • Reading package lists... Done W: GPG error: http://ppa.launchpad.net trusty InRelease: The following signatures couldn't be verified because the public key is not available: NO_PUBKEY D46F45428842CE5E


    Still looking for the solution Working Solution 2017/07 sudo apt-key adv --keyserver keyserver.ubuntu.com --recv-keys D46F45428842CE5E Solution gpg --keyserver hkp://subkeys.pgp.net --recv-keys D46F45428842CE5E gpg: requesting key 8842CE5E from hkp server subkeys.pgp.net gpg: keyserver timed out gpg: keyserver........
  • USB 3.0 PCI x1 Card Review VIA VL805 on Linux Review and Experience


              This is a VIA made VL805 USB 3.0 Chipset with 4-ports and MOLEX powered.  First of all this unit was cheap at about only 9 USD with fast shipping.  My biggest concern was if this was a quality unit and would it really give you full USB 3.0 speeds (some people reported with similar cards that for some weird r........
  • Why won't my Linux Mint boot after I manually installed a new kernel?


    Why won't my Linux Mint boot after I manually installed a new kernel? eg. apt-get install linux-image-newerone Do this   dpkg -l|grep linux-image|grep extra ii  linux-image-extra-3.16.0-38-generic                         3.16.0-38.52~14.04.1     &nb........
  • Linux Mint missing ffmpeg solution to install from Ubuntu PPA


    This is very annoying that ffmpeg is missing from Linux Mint!  They have ffmpeg2theora which is a totally different codec and does not work as ffmpeg does at all (it is basically totally different). However on Linux Mint 17 I was able to use a Ubuntu PPA and sucessfully install ffmpeg! https://launchpad.net/~mc3man/+archive/ubuntu/trusty-media Adding this PPA to your system........
  • ubuntu Linux colour dropper picker


    gpick is a great and simple tool now that I now how to use it sudo apt-get install gpick The trick is to find "the swatch" I was in a rush and was frustrated that it wouldn't work how I expected and I had to memorize the hex code of the color my mouse was over. There is something it tells you to do which is "Click on the swatch area" (click onthe honeycomb graphic area that is the s........
  • Linux Ubuntu Mint how to view RAW image files .arw?


    I just use "ufraw" and it does the trick perfectly. Now I wish I could figure out how to batch convert them into .jpg with ImageMagick (it seems support for .raw is not guaranteed or it has to be compiled in). apt-get install ufraw........
  • How to Normalize and Increase the Volume on M4A files in Linux


    M4A is a weird format, so you have to be creative here is a quick copy of what I did.  Basically you need to convert to .wav to make use of them and then I converted the resulting .wav into an mp3 (nice small file size and basically universally playable):   =======   sudo apt-get install mpg321 mp3gain faad normalize lame  faad "Voice 002 (copy).m4a" faad "Voice 002 (copy).m4a"........
  • Linux Mint 17 How to Enable File Sharing Option in File Manager


    I still cannot understand how this would not be enabled by default and I struggled to find the reason why with manually installing samba etc.. wondering why the option for sharing was not in the menu.   On Linux Mint "MATE" the package is called "caja-share" and on Cinnamon it is called "nemo-share" so edit the below command as necessary: *Also note that the "samba" package is necessary as it is not inst........
  • The connection was reset The connection to the server was reset while the page was loading.


    In Firefox I cannot connect to any website, proxy is disabled and outside network access is confirmed, no system or manual proxy was set on this Linux Mint/Ubuntu system.  Normally this can be caused by proxy or DNS problems and the weird thing is that traceroute and ping to other IPs worked fine but even connecting to sites by IP was not working. The connection was reset The connection to the server was reset while the page was loading.........
  • Mint/Ubuntu/Debian error twisted/test/raiser.c:4:20: fatal error: Python.h: No such file or directory #include Python.h


    Simple solution install python-dev sudo apt-get install python-dev libyaml-dev libpam-dev........
  • Nvidia Linux Card not working due to LSI 9200/SAS2008 IRQ conflict


    At first my BIOS said the card may not work right because there is no more option ROM space. I disabled the Option ROM for both LSI 1068 and 2008 chipsets, Network Boot ROM and most other PCI slots, Serial Port, etc... and the message went away but the card still does not work properly. But it still cannot initialize the card properly (does not work): [   33.943272] NVRM: This PCI I/O region assigned to your NVIDIA device is invalid:........
  • SAS2008 LSI 9200-E Linux Upgrade Flash Firmware with sas2flash


    Download from here http://www.avagotech.com/products/server-storage/host-bus-adapters/sas-9200-8e#downloads   sudo Installer_P20_for_Linux/sas2flash_linux_i686_x86-64_rel/sas2flash -listall LSI Corporation SAS2 Flash Utility Version 20.00.00.00 (2014.09.18) Copyright (c) 2008-2014 LSI Corporation. All rights reserved   &nbs........
  • Linksys PAP2T No delay in dialing recommended fast dial plan


    I modified the default to the following for faster local dialing for North American area codes: (*xx|[3469]11|0|00 [2-9]xxxxxxS0|[2-9]xxxxxxxxxS0|1xxx[2-9]xxxxxxS0|xxxxxxxxxxxx.) This is what I added to the above: "[2-9]xxxxxxxxxS0" so any 9 digit number is dialed instantly xxx-xxx-xxxx (the S0 at the end makes it dial right away).  This makes dialing much quicker and is recommended. *No........
  • Debian Linux Ubuntu Mint connect to pptp from terminal bash shell


    apt-get install pptp-linux echo "yourvpnusername * yourpasspass *" >> /etc/ppp/chap-secrets vi /etc/ppp/peers/provpnaccounts.com enter (ignore the lines): ============ pty "pptp server.provpnaccounts.com --nolaunchpppd" name testuser #remotename PPTP require-mppe-128 file /etc/ppp/options.pptp ==========........
  • bash scripting for loop set number of iterations


    A handy trick in bash that can be adapted to many useful tasks: for i in {1..99}; do echo $i done 1 2.. 97 98 99 100 Another tricky is if you need a 0 in front of the first letters: for i in {1..12}; do if [ $i -lt 10 ]; then     i=0"$i" fi echo $i........
  • Cannot get mono to work properly on Linux Mint


      mono/wine not working in Ubuntu/Linux Mint/Debian: The assembly mscorlib.dll was not found or could not be loaded. It should have been installed in the `/usr/lib/mono/2.0/mscorlib.dll' directory.   solution: sudo apt-get install mono-complete      Problems: mono does not work well for even simple things like a Winrar self extracting .exe fi........
  • Mysql how to backup/copy row from one table to another


    INSERT INTO articles_backup SELECT * FROM articles WHERE articleID="118" It is so simple we always recommend people do this when updating their database so you always have a backup. The above inserts the copy into the table "articles_backup" which has an identical structure. It selects the entry from "articles" where the articleID is "118" but of course you can adapter yours to whatever the situation is.........
  • Virtualbox errors on Ubuntu/Debian/Mint


      The solution was to reinstall the vbox dkms package and do a manual modprobe of the modules it makes. I never sorted out the unable to start due to the USB issue, I did have the guest additions installed but the only way to boot was to change the pointing device from USB to PS2 and then to disable the USB controller (if your pointing device is set as USB, disabling USB will not work because it will re-enable by default when it sees your pointing device is USB, this is w........
  • How To Install Linux Mint 17.2 on mdadm RAID with a separate boot partition


    I was surprised to see that Linux Mint at the latest 17.2 version still has NO mdadm installer option, and worse the installer will not be able to create a proper booting environment even when you do install it. How to setup mdadm in Linux mint LiveCD sudo su apt-get install mdadm # partition as you need and then create your mdadm devices # create your SWAP md0 mdadm --create /dev/md0 --level=1 --raid-devices=2 /dev/sda1 /d........
  • Installing zoneminder on Ubuntu/Debian Linux Howto


    sudo apt-get install zoneminder [sudo] password for one: Reading package lists... Done Building dependency tree       Reading state information... Done The following packages were automatically installed and are no longer required:   libuser-perl python-evince kdebase-apps kwrite unixodbc   libgnomeprint2.2-data python-soappy vgabios python-metacity hddtemp   python-mediaprof........
  • flypro EEPROM PLCC32 programmer software error "The device ID does not match, whether to continue operating"


    If you get that message it means you have inserted the adapter or device incorrectly.  In my case the adapter needed to be at the rear end of the pins and it caused this message. Do not ignore this message as it may appear to work but you will get errors and in reality your chip will not be erased or programmed even if it appears like it is working.........
  • HP XW9400 Motherboard In Desktop Issues


    Fortunately the format is EATX so an EATX case will work and the screw layout is standard. You will need to remove the HEX/TORX screws that are connecting the stock HP standoffs (meant to slide into an HP case). XW9400 Motherboard Issues Size: 12" x 13" Proprietary Power Connector Proprietary CPU Power Connector Proprietary Memory Power Connector Fan connectors are 4 pin so you will need some kind of adapter.........
  • Postfix how to secure outgoing authenticated e-mails for privacy and hide the IP address, mailer and other things


    The most common solution is to use the /etc/postfix/header_checks but this is a big problem. Why is header_checks a problem?  Because it does it to all mail whether incoming or outgoing and whether authenticated or not.  We of course want as much header information for incoming as we can get for many reasons but many organizations want to secure and make their mail clients as secure as possible. I adapted this solution to the client's custom config, they are configur........
  • Sipura/Linksys VOIP Adapter How to Check your IP Address


    Dial * * * * Then 110# It will then say what your current IP address is.........
  • How to update Open Office in Ubuntu/Debian if your repository is outdated or no longer supported


    http://sourceforge.net/projects/apacheoo-deb/files/debian/dists/wheezy/main/binary-i386/ To install AOO on your computer, you need to add the following entry to the /etc/apt/sources.list file: deb http://downloads.sourceforge.net/project/apacheoo-deb/debian wheezy main sudo apt-get update && sudo apt-get install openoffice-en* openoffice-brand-writer openoffice-brand-calc openoffice-brand-impress openoffice-brand-base open........
  • Asterisk VOIP Sipura/Linksys PAP2T Calls Not Being Received Solution


    This problem seemed to happen recently but was likely causing issues before where the phone(s) do not ring. Now there are a few reasons why this can happen especially if your adapter has DND mode enabled (disable it). However that wasn't my issue and I only figured it out the other day  when  by fluke if you're on the phone (making a call) then  calls will come in. That's when I figured out the solution: This likely app........
  • NVIDIA GeForce GT 610 not working in Linux solution - use older 304.117 driver


    I used the slightly older "304.117" version and it worked. With the newest version I couldn't get X to start and kept getting these errors in messages/dmesg. [ 2346.083660] nvidia 0000:01:00.0: irq 44 for MSI/MSI-X [ 2350.608342] NVRM: RmInitAdapter failed! (0x12:0x2b:1831) [ 2350.608354] NVRM: rm_init_adapter failed for device bearing minor number 0 [ 2350.608369] NVRM: nvidia_frontend_open: minor 0, module->open() failed, err........
  • openssh-server has no installation candidate Debian/Ubuntu Solution


    I don't know why but some installations don't have this in the database by default. To fix it to an: sudo apt-get update;sudo apt-get install openssh-server and then it will work........
  • Ubuntu 10.10 100% CPU from apt-get solution


    When manually running it for some reason it decided to ask for/use the CD as a source which I never set. Disabling the CD as a source stops this from happening, otherwise apt-get will keep respawning and use 100% CPU.........
  • VBulletin Enhanced Captcha / RegSecure not showing/working images solution.


    This happened after a customer migrated their hosting and the issue was being unable to access PHP sessions. Warning: session_start(): open(/var/lib/php/session/sess_3e0oms763m6mrqekdnnmodlhs3, O_RDWR) failed: Permission denied (13) in /register.php(202) : eval()'d code on line 1 Solution: (use the correct ownership/permissions) chown apache.apache -R /var/lib/php........
  • Linux Bash grep howto find line number that contains the result


    cat Xorginfo.txt|grep -nr "xserver-xorg" Result: 9:    sudo apt-get remove --purge xserver-xorg 13:    sudo apt-get install xserver-xorg 17:    sudo dpkg-reconfigure xserver-xorg........
  • Sipura / Linksys PAP/VOIP/SIP Adapter Issue Can't receiving incoming phone calls and you're behind a NAT router (99% of people)? solution


    Sipura / Linksys PAP/VOIP/SIP Adapter Issue Can't receiving incoming phone calls and you're behind a NAT router (99% of people)? 1. Login to the adapter. 2. Click on "Advanced" (location varies but usually somewhere on top) 2. Click on "SIP" 3. Scroll down to "NAT" (usually at the bottom). You'll find 2 columns with 4 rows of drop-down boxes (they'........
  • rpmforge Centos 6 how to install


    rpm --import http://apt.sw.be/RPM-GPG-KEY.dag.txt i686: rpm -ivh http://packages.sw.be/rpmforge-release/rpmforge-release-0.5.2-2.el6.rf.i686.rpm x64: rpm -ivh http://packages.sw.be/rpmforge-release/rpmforge-release-0.5.2-2.el6.rf.x86_64.rpm  ........
  • Dell Perc 6/i SATA benchmarks without battery


    The results are not bad, the Hitachi performs the same as it does in a SATA2 motherboard.  However, the 2TB is much different, on a similar 2TB Toshiba I get about 198MB/s on a different motherboard vs the 2TB Hitachi which should produce similar results. This Dell Perc 6/i is on a PCI x8 riser card and is connected to a 12-port backplane. Adapter #0     Enclosure Device ID: 32 Slot Number: 0 Enclosure position: N/A De........
  • Dell Perci 6/i Firmware Upgrade Guide Tutorial


      One thing to remember is that you need MegaCli to do the flashing. You also need the correct file, I tried at least 2 different Perc 6 firmwares from Dell that kept getting rejected as corrupt by MegaCli (they were really the wrong version).  I have an external PCI-E Dell 6 Perc/I but I chose images from the 'Integrated" on motherboard version as it was all I could find.  They are different, and below is my first time finding success.........
  • Dell Perc 6/i cannot downgrade


    I flashed an LSI Logic firmware to it and it broke the BIOS (cannot do Ctrl+R) for booting purposes but allows other functionality to work normally. I tried downgrading to a Dell firmware for Perc 6i but it won't work, not even with MegaCli wget http://downloads.dell.com/FOLDER00416606M/1/SAS-RAID_Firmware_W83M2_LN32_6.3.1-0003_A14.BIN --2013-08-26 12:53:39--  http://downloads.dell.com/FOLDER00416606M/1/SAS-RAID_Firmware_W83M2_LN32_6.3.1-0003_A14.BIN Resolvi........
  • LSI MegaRAID Adventures, Guide and HowTo


    LSi Megaraid At first it was configured as a RAID 0, then I deleted the Virtual Disk Group. I thought both drives would be shown and detected in Linux as sda and sdb but it actually shows nothing. To make them work you have to hit Ctrl+R before the system boots (when prompted) and create a Virtual Disk Group.  In my case I created each one as RAID 0 (with a single drive only) as I just wanted JBOD but there is no such option or default in these Dell Pe........
  • rpmforge Centos 6 x64 howto install


    rpm --import http://apt.sw.be/RPM-GPG-KEY.dag.txt rpm -ivh http://packages.sw.be/rpmforge-release/rpmforge-release-0.5.2-2.el6.rf.x86_64.rpm Retrieving http://packages.sw.be/rpmforge-release/rpmforge-release-0.5.2-2.el6.rf.x86_64.rpm Preparing...                ########################################### [100%]    1:rpmforge-release       #############........
  • open /dev/kvm: No such file or directory failed to initialize KVM: Operation not permitted - Solution


    open /dev/kvm: No such file or directory failed to initialize KVM: Operation not permitted [   96.084502] kvm: disabled by bios Any of the above means that "Virtualization" is not enabled in your BIOS.  Most servers and Desktops (non-mainstream) can do this no problem but leave it off by default.  Note that some systems even though the CPU supports it, don't allow enabling of Virtualization for some reason (especially some lap........
  • Ubuntu Download Packages/Updates for EOL Unsupported Old Releases


    I installed Ubuntu 11.04 for testing purposes but I couldn't even download SSH server: sudo sed -i -e 's/us.archive.ubuntu.com/old-releases.ubuntu.com/g' /etc/apt/sources.list After running the above make sure you do a "apt-get update" Note with the above that I have the search string of "us.archive.ubuntu.com" change it to whatever is in your sources.list The above does not fix all repositories either, I haven't  had a chance t........
  • Samsung Galaxy Note Ubuntu Linux USB Connection Error


    This pops up when connecting the phone and it doesn't seem to charge.  The phone keeps showing a status message every few seconds "Connected as a media device".  It's ridiculous why this phone doesn't just default as a simple USB Mass storage device. Here's what I see in /var/log/messages: Jan 30 18:51:27 QuadCoreAM2 kernel: [18038228.144046] usb 1-3: new high speed USB device using ehci_hcd and address 24 Jan 30 18:51:28 QuadCoreAM2 ke........
  • KVM support Ubuntu 12.04 or 12.10


    This seems to be a verified bug on KVM with no solution.  I wasn't able to get through the installer with Ubuntu 12.04, it would crash while "configuring apt".  I was able to install it with Ubuntu 12.10 but it crashes randomly at times. This happens with the latest Centos 6.3 kernel and KVM package, I even compiled the latest version from the KVM website and used that, but the results are still the same. Here's some links to discussion about the bugs:........
  • Samsung 4GB 1Rx4 DDR2 PC5300F FBDIMM Running Hot


    sensors|head i5k_amb-isa-0000 Adapter: ISA adapter Ch. 0 DIMM 0:+115.0°C  (low  = +127.5°C, high = +127.5°C)  Ch. 0 DIMM 1: +63.5°C  (low  = +127.5°C, high = +127.5°C)  Ch. 0 DIMM 2: +61.0°C  (low  = +127.5°C, high = +127.5°C)  Ch. 1 DIMM 0: +65.0°C  (low  = +127.5°C, high = +127.5°C)  Ch. 1 DIMM 1: +75.0°C&........
  • Thunderbird How-To Copy/Backup/Restore Accounts and Settings to Another Computer


    The best way is to use rsync, I've set it up so it doesn't copy unnecessary files, or at least ones I'm sure aren't needed. Here is the rsync command I used (adapt to your specific Thunderbird profile location): rsync -hazv user@remotehost.com:/home/user/.thunderbird/sbrer.default/* /home/user/.thunderbird/4nyb0.default/ --exclude=global* --exclude=Cache --exclude=ImapMail --exclude=Mail This is a great way to get your e-mail accounts going on a new c........
  • Linux Ubuntu/Debian ATI 9902 No Sound Solution on HP G6 Pavilion Laptop


    00:14.2 Audio device: Advanced Micro Devices [AMD] Hudson Azalia Controller (rev 01) 00:01.1 Audio device: Advanced Micro Devices [AMD] nee ATI Device 9902 Backup your also.conf file cp /usr/share/alsa/alsa.conf /usr/share/alsa/alsa.conf.bk Change all instances of "card 0" to "card 1" (no need to manually do it, this command below does it all instantly and without fail or error:........
  • Ubuntu 10 Nvidia Drivers Not Updated After Kernel Update Solution/How-To Manually Rebuild nvidia kernel modules for Ubuntu


    I dread updating the kernel and rebooting to find the Ubuntu graphics aren't working and you have to manually intervene.   This is usually because Ubuntu for whatever reason didn't update the drivers you need (eg. the manually compiled Nvidia Kernel driver that MUST be recompiled for each and every kernel update unfortunately). The most common reason may be that "linux-source" hasn't been installed automatically on my system.  I tried to manually reinstall the........
  • Ubuntu Suspend Solution Fix blank screen laptop/computer won't come back


    Even in new versions of Ubuntu this happens but for me I found out it was because of one feature under "Power Management". I had "Spindown hard disks when possible" ticked, after disabling that, my computer wakes up from suspension every time now.  So if your computer won't unsuspend with any version of Ubuntu/*Nix try disabling the spin down hard disk option as it's obviously the culprit for many situations.........
  • Install Android SDK and start testing on Debian/Ubuntu: How To Guide/Tutorial


    Visit http://linux.softpedia.com/get/Programming/Interpreters/Android-32340.shtml Basically copy and paste all of that below and you'll have installed and started the Android SDK before you know it. wget http://dl.google.com/android/android-sdk_r12-linux_x86.tgz sudo apt-get install openjdk-6-jre openjdk-6-lib openjdk-6-jre-headless tar -xvf android-sdk_r12-linux_x86.tgz cd android-sdk-linux_x86/tools ./android........
  • vi problem in Ubuntu/Debian distros when editing up,down,left,right arrow keys produce A,B,D,C respectively


    This is very annoying, the only known fix is to install vim apt-get install vim After that everything works as normal.........
  • Linux Out of Memory OOM Object Killer Solution "Out of memory: kill process 1955 (sshd) score 81 or a child"


    I had a system running a 128MB live CD image with 2.8 gigs of available RAM and the OOM kernel killer went crazy when using dd for more than 8 minutes and kept killing everything.  I've read that this is due to a low-memory issue and paging in the kernel and 32-bit systems with lots of RAM. I even enabled swapspace on my LiveCD and the issue happened 25 minutes into dd rather than 8 minutes, so what gives? Also no swap space was ever used! cat /proc/s........
  • vnstat setup guide/tutorial


    yum -y install vnstat chown nobody.nobody -R /var/lib/vnstat/ #replace venet0 below with your desired interface sudo -u nobody vnstat -u -i venet0 #edit: vi /etc/sysconfig/vnstat #VNSTAT_OPTIONS="-i venet0" # only use the sed below if you are using venet0 instead of eth0 or replace accordingly sed -i 's/eth0/venet0/g' /etc/sysconfig/vnstat   [root@monitor]# yum install vn........
  • 2011 Best Laptop - HP 15.6" Laptop featuring AMD Athlon II P340 Processor (G62-420CA)


    My mother needed a new laptop and I recommended her the same one I would have bought myself or my wife, that means the cheapest possible laptop with the most features for the money. This HP shines at this price point and one thing that made me stay away from buying more and recommending HP/Compaq was the poor battery life.  Not anymore, this model has an industry leading up to 4 hours of battery life. Key Factors for Choosing It: HDMI Out........
  • VOIP/Asterisk/FAX Error Problems Solution NOTICE[11389]: rtp.c:1808 ast_rtp_read: Unknown RTP codec 100 received from


    NOTICE[11389]: rtp.c:1808 ast_rtp_read: Unknown RTP codec 100 received from I've found that trying several times may work, but I also read changing your Sipura VOIP adapter settings as follows helps (but it still fails for me sometimes): In adapter change the following under SIP/Advanced Codec to G711a from G711u Passthru Method from: NSE to ReINVITE FAX CED Detect Enable: Yes FAX CNG Detect........
  • VMWare bridged adapter not working: The network bridge on device vmnet0 is not running. The virtual machine will not be able to communicate with the host or with other machines on your network. Failed to connect virtual device Ethernet1.


    VMWare bridged adapter not working: Message from system: The network bridge on device vmnet0 is not running. The virtual machine will not be able to communicate with the host or with other machines on your network. Failed to connect virtual device Ethernet1. I'm not sure how to fix this but one of the issues is that my eth0 became eth1 after moving my hard drives to a new motherboard.  I have run the vmware-config.pl but this did not resolve the issue.........
  • Linux Realtek Gigabit NIC huge/high latency problem after sleep?


    That is pinging to the gateway IP on the same switch, the same IP is pingable externally without any problems which makes me think the switch is fine. 64 bytes from 55.55.55.55: icmp_seq=4 ttl=255 time=1.07 ms 64 bytes from 55.55.55.55: icmp_seq=1 ttl=255 time=3536 ms 64 bytes from 55.55.55.55: icmp_seq=2 ttl=255 time=2536 ms 64 bytes from 55.55.55.55: icmp_seq=3 ttl=255 time=1536 ms 64 bytes from 55.55.55.55: icmp_seq=8 ttl=255 time=1.20 ms 64 by........
  • Ubuntu/Debian DRBD 8.0 Setup Guide


    I've only used it on Centos, so I thought I'd make a quick Debian guide: Install the DRBD Package apt-get install drbd8-utils Reading package lists... Done Building dependency tree       Reading state information... Done The following packages were automatically installed and are no longer required:   libswfdec-0.8-0 Use 'apt-get autoremove' to remove them. The following........
  • EOL for Kubuntu/Ubuntu 8.04 - W: Failed to fetch http://ca.archive.ubuntu.com/ubuntu/dists/intrepid/universe/source/Sources.gz 404 Not Found [IP: 91.189.92.171 80]


    I couldn't figure out why I couldn't install a simple package.  This is what's annoying about cutting edge Debian distros, yes we know you support each license on average for 1-2 years but why take down the supporting binary packages and basically disable the older versions? sudo apt-get install update Reading package lists... Done Building dependency tree       Reading state information... Done E: Couldn't find p........
  • http://apt.sw.be/redhat/el5/en/i386/test/repodata/repomd.xml: [Errno 14] HTTP Error 404: Not Found Trying other mirror.


    http://apt.sw.be/redhat/el5/en/i386/test/repodata/repomd.xml: [Errno 14] HTTP Error 404: Not Found Trying other mirror. Error: Cannot retrieve repository metadata (repomd.xml) for repository: rpmforge-testing. Please verify its path and try again Notice it is complaining about "rpmforge-testing", just disable it for now: Solution is to edit the repo: vi /etc/yum.repos.d/rpmforge-testing.repo........
  • Wine stopped working/won't work Solution


    After an upgrade wine wouldn't open anything, not even the pre-installed notepad. There are no wine logs and nothing is mentioned in any standard log file about why. I finally decided to run wine from the shell and see what's going on: wine client error:0: version mismatch 398/402. Your wineserver binary was not upgraded correctly, or you have an older one somewhere in your PATH. Or maybe the wrong wineserver is still running?........
  • LUKS/cryptsetup Tutorial for Linux Hard Drive Partition Encryption


    This is based on Debian Linux but should apply equally to any *nix distro. Install LUKS/crypt-setup apt-get install cryptsetup Setup your LUKS Partition Of course change /dev/md2 with whatever partition you intend to use LUKS on. cryptsetup --verbose --verify-passphrase luksFormat /dev/md2 You'll be asked to verify your decryption password twice *DO NOT FORGET THIS PASSWORD AS IT IS NOT RECOVERABLE!........
  • Use rcconf to edit startup/init.d/init scripts on Debian/Ubuntu based distributions


    I've never understood how to enable and disable services for different run levels in Debian based distros, it's just weird, annoying and doesn't make sense.  I much prefer chkconfig from RHEL. Just install the package called 'rcconf' and be done with it.  rcconf makes things easy for you. apt-get install rcconf Reading package lists... Done Building dependency tree        Reading state information... Done........
  • XMPP Chat Protocol using Jabber - Guide Tutorial Setup Linux Chat Server


    In Debian based distros: apt-get install jabber Reading package lists... Done Building dependency tree       Reading state information... Done The following packages were automatically installed and are no longer required:   fakeroot dkms Use 'apt-get autoremove' to remove them. The following extra packages will be installed:   jabber-common The following NEW packag........
  • Picking an FTPD (vsftpd) Server in Linux Centos/Debian


    I decided on using yum to help me decide even though I normaly use proftpd I decided to see what else I could find. yum search ftp Loaded plugins: fastestmirror Loading mirror speeds from cached hostfile  * rpmforge: ftp-stud.fht-esslingen.de  * base: mirrors.netdna.com  * updates: updates.interworx.info  * addons: yum.singlehop.com  * extras: mirrors.netdna.com rpmforge   ........
  • Compaq V2405CA Laptop - Unixbench Performance Test


    Here are the results, it is Sempron 3000+ AMD Mobile, 500Gig HDD, 512MB RAM with shared ATI Radeon graphics.      #    #  #    #  #  #    #          #####   ######  #    #   ####   #    #    #    #  ##   #  #   #  #&nb........
  • Fix/Solution for apt-get error: " E: Archive directory /var/cache/apt/archives/partial is missing."


    I thought I was being smart, I wanted to download some Debian packages so I went to /var/cache/apt/archives and did "rm -rf *" but then I couldn't use apt-get anymore.  I kept getting this error: E: Archive directory /var/cache/apt/archives/partial is missing. E: The list of sources could not be read. The solution was to recreate the "partial" directory inside /var/cache/apt/archives and then everything will be fine.........
  • heartbeat is stopped for some reason


    heartbeat is stopped for some reason Anyway hnode2 was active and the services are running fine but I see heartbeat has been stopped somehow. Here is the last log I see of heartbeat: [quote:23c84415f5] Sep 9 17:15:32 hnode2 heartbeat: [16738]: info: MSG stats: 9/1762471 ms age 0 [pid16738/MST_CONTROL] Sep 9 17:15:32 hnode2 heartbeat: [16738]: info: cl_malloc stats: 716/51784021 152624/74519 [pid16738/MST_CONTROL] Sep 9 17:15:32........
  • PHP cannot access /usr/bin/openssl


    PHP cannot access /usr/bin/opensslI have verified the username that runs the process is able to access /usr/bin/openssl and it does exist but the PHP script is saying it doesn't exist: [code:1:1fd0f3abbe] if (!file_exists($OPENSSL)) { //echo "ERROR: OPENSSL $OPENSSL not foundn"; }[/code:1:1fd0f3abbe] I don't get itI can clearly see the contents of /usr/bin by using the PHP system fu........
  • Asterisk FreeBSD compile problems


    Asterisk FreeBSD compile problemsI couldn't get it to compile without using the following options at compile time: [b:b7d672ee28] make install WITHOUT_ZAPTEL=YES WITHOUT_MYSQL=YES WITHOUT_FAX=YES WITHOUT_ODBC=YES WITHOUT_H323=YES[/b:b7d672ee28]Some problems you might have with copying over your Linux config files to FreeBSD is different paths. [b:f044931f41]For example the etc path for Asterisk on BSD will now be:[/b:f044931f41] [qu........
  • Telus + 2Wire 2700 Router Horrible


    Telus + 2Wire 2700 Router HorribleWell first of all let me say this is the only router/switch that sometimes seems to crash/disconnect computers on the local network. This device also thought it would be smart to block VOIP packets coming from my Sipura ATA VOIP adapters so I disabled the [quote:cb89ba7bff]"Invalid TCP Flag Attacks (NULL/XMAS/Other)"[/quote:cb89ba7bff] option Then all of a sudden I couldn't get onto any web pages, the wireless........
  • Updating yum repos for DAG /etc/yum.repos.d


    Updating yum repos for DAG /etc/yum.repos.dIn /etc/yum.repos.d [quote:96456b2ab9]Create any file such as "CentOS-Dag.repo" in /etc/yum.repos.d[/quote:96456b2ab9] Add the following to the above file: [code:1:96456b2ab9] [dag] name=Dag RPM Repository For Red Hat Enterprise Linux baseurl=http://dag.atrpms.net/redhat/el$releasever/en/$basearch/dag/ http://dag.freshrpms.net/redhat/e........
  • Intel's Finnish Fetish


    Intel's Finnish FetishIntel's Finnish Fetish By Dave Mock June 13, 2005 Chipmaker Intel (NASDAQ: INTC) has successfully topped the personal computer market for decades. Breaking into related areas such as communications has been much difficult for the world's largest semiconductor maker. But a new partnership with Nokia (NYSE: NOK) could help to change that. Intel's forays into cellular-phone and home-entertaiment-device chips have........
  • iPhone Enable Tethering Manually Update ipcc Carrier Settings/Update via SSH


    Everyone says there is a "manual" way of doing it and then they tell you to use iTunes, but if you're like me, you're travelling on business in a foreign country and your laptop does not have iTunes and you don't have a way of getting it and/or don't want it. For this example I'm using the provider "du" in Dubai, UAE (United Arab Emirates) but this method works for virtually all providers.  The requirements in this case to truly "manually update........
  • How To Enable 3rd/third party packages in RHEL/Redhat/Centos 4/5 Linux via RPMForge


    It's a bit of a pain that many basic third party tools that aren't put of the main Centos/RHEL repositories are not available unless you compile them or install the RPMForge Repo. *Updated 08/29 with new download location changed from apt.sw.be to rpmforge.sw.be Here's a quick, simple/cut&paste way to do it: wget http://rpmforge.sw.be/redhat/el5/en/i386/rpmforge/RPMS/rpmforge-release-0.5.1-1.el5.rf.i386.rpm rpm -i rpmforge........
  • Configuring OCFS2 Clustered File System on Debian Based Linux including Ubuntu and Kubuntu


    There's a lot of information and guides on OCFS2 for RHEL and Centos Linux but the package setup and configuration is slightly different and this has thrown some people off. Installing OC2FS You should install the following packages to get started: apt-get install ocfs2-tools ocfs2console Configure OC2FS In RHEL/Centos the main configuration file is located in /etc/sysconfig/o2cb However in Debian based Linux it is located........
  • Writing/Burning a data CD-R/DVD-R or DVD+RW in Unix/Linux


    There's a lot of outdated information and confusion for system administrator's out there. One annoying task for many an Administrator has been backing up data in Linux.  You don't need any GUI tools such as K3B or GnomeBaker.  Both are excellent tools but for veteran command line users working remotely, using the keyboard is a great and possibly automated way to save yourself pain and hassle. At a later date we'll cover how scripting can automatically backup certain........
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