• How to install and configure haproxy on Linux Ubuntu Debian

    haproxy is one of the best known and widely used Open Source load balancers out there and a strong competitor to nginx. haproxy is used by many large sites per Wikipedia: HAProxy is used by a number of high-profile websites including GoDaddy, GitHub,........
  • LXC Containers LXD How to Install and Configure Tutorial Ubuntu Debian Mint

    If you are using mint, delete the preference that stops snap from installing (as it is required for lxc) sudo rm /etc/apt/preferences.d/nosnap.pref 1. Install lxd: sudo apt install lxd Issues install lxd or errors? Click here Debian at this time does not have lxd so you'll need to use snap: sudo apt in........
  • GlusterFS HowTo Tutorial For Distributed Storage in Docker, Kubernetes, LXC, KVM, Proxmox

    This can be used on almost anything, since Gluster is a userspace tool, based on FUSE. This means that all Gluster appears as to any application is just a directory. Applications don't need specific support for Gluster, so long as you can tell the application to use a certain directory for storage. One application can be for redundant and scaled storage, including for within Docker and Kubernetes, LXC, Proxmox, OpenStack, etc or just your image/web/video files or even da........
  • Wazuh / OSSEC Install and Configuration Howto Tutorial Guide for Monitoring Agents SIEM

    How To Install Wazuh Server Wazuh (forked from the well known OSSEC project) is a full SIEM (Security Information Event Management) that works extremely well with the platforms it natively supports as an "Agent", which allows you to do scans of everything such as all processes running, CVE vulnerability check, incident reporting etc... This is the easiest way: The unattended install makes things a breeze to........
  • virt-resize: error: libguestfs error: could not create appliance through libvirt.

    This is caused because the user is running as qemu for virt-resize and if qemu does not have privileges to read from the source and write to the destination, it will fail with the below. So either change the uid of qemu or change the ownership of the source and target. Solution: export LIBGUESTFS_BACKEND=direct virt-resize --expand /dev/sda2 /root/kvmtemplates/windows2019-eval-template.img /root/kvmguests/kvmkvmuser4515........
  • mpv / mplayer with Radeon / AMD GPU Video Card Driver enable VDPAU GPU Accelerated Video Decoding

    The easiest way to know if your videos are playing with GPU acceleration are to watch the process of xplayer, mpv or whatever you are playing. The CPU usage should be no more than 10% for that process/program if it is using acceleration. Let's manually play with vdpau to make sure it works before we make it permanent: First make sure you have libvdpau installed: sudo apt install vdpau-driver-all If yo........
  • gvfs mount in /run/user cannot be accessed or displayed wrong permissions Error: Location is already mounted

    You get errors like below and see you have all question marks for the permissions if you go to /run/user/1000/gvfs If you try to access the mounted share such as anything mounted as gvfs like an SSH share in your file manager you may get an error like this. It generally means an interruption in communication or a fault with gvfsd has caused it. Solutio........
  • 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 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........
  • Apache Vhost HowTo Serve Same Content using a different domain and IP

    There are a few ways of doing this and all basically involve using the reverse proxy or "ProxyPass" feature of Apache to accomplish it. 1.) Create a normal vhost and simply symlink the root directory of the site you want to mirror. Eg. originalsite.com and newsite.com /vhosts/originalsite.com/httpdocs You would symlink like this: ln -s /vhosts/originalsite.com/httpdocs vhosts/originalsite.com/........
  • Asterisk iptables block bruteforce attacks howto with fail2ban

    yum -y install fail2ban vi /etc/fail2ban/jail.conf [asterisk-tcp] enabled = true filter = asterisk action = iptables-multiport[name=asterisk-tcp, port="5060,5061", protocol=tcp] sendmail-whois[name=Asterisk, dest=you@example.com, sender=fail2ban@example.com] logpath = /var/log/asterisk/messages maxret........
  • postfix lopback error solution

    This is the mail system at host mail.postmail.com. I'm sorry to have to inform you that your message could not be delivered to one or more recipients. It's attached below. For further assistance, please send mail to If you do so, please include this problem report. You can delete your own text from the attached returned message. &........
  • Amarok won't play songs, keeps skipping to the next

    Amarok won't play songs, keeps skipping to the next Some say install install phonon-backend-xine but it was already installed automatically, obviously that's not the problem or solution. Settings -> Configure Amarok Playback: Configure Phonon Audio Output: Music It should show your different audio interfaces, choose Pulse Audio and move it to the top of the list, do the Apply, OK and manually quit Amarok (remember to close it from the tra........
  • Latest Articles

  • vi cannot copy and paste automatic visual mode solution
  • python3 error Ubuntu Linux error solution SyntaxError: invalid syntax line 12 pip{sys.version_info.major}
  • Could not read response to hello message from hook [ ! -f /usr/bin/snap ] || /usr/bin/snap advise-snap --from-apt 2>/dev/null || true: Connection reset by peer
  • -bash: expr: command not found Linux Debian Mint Ubuntu
  • How to remove metadata from pdf on Linux Ubuntu
  • How to install and configure haproxy on Linux Ubuntu Debian
  • Linux Ubuntu Mint Gnome keyboard Typing not working in certain application or window solution
  • talib/_ta_lib.c:747:10: fatal error: ta-lib/ta_defs.h: No such file or directory
  • How to install Windows or other OS and then bring to another computer by using a physical drive and Virtual Machine with QEMU
  • PXE-E23 Error BOOTx64.EFI GRUB booting is 0 bytes tftp pxe dhcp solution NBP filesize is 0 Bytes
  • vagrant install on Debian Mint Ubuntu Linux RHEL Quick Setup Guide Tutorial
  • RHEL 8 CentOS 8, Alma Linux 8, Rocky Linux 8 System Not Booting with RAID or on other servers/computers Solution for dracut and initramfs missing kernel modules
  • How to Upgrade to Debian 11 from Version 8,9,10
  • Ubuntu Linux Mint Debian Redhat Cannot View Files on Android iPhone USB File Transfer Not Working Solution
  • Virtualbox Best Networking Mode In Lab/Work Environment without using NAT Network or Bridged
  • debootstrap how to install Ubuntu, Mint, Debian install
  • Linux grub not using UUID for the root device instead it uses /dev/sda1 or other device name solution
  • How To Restore Partition Table on Running Linux Mint Ubuntu Debian Machine
  • Debian Ubuntu apt install stop daemon questions/accept the default action without prompting
  • iptables NAT how to enable PPTP in newer Debian/Ubuntu/Mint Kernels Linux