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  • Command Line: How do I convert a .asf file to .wav?
    Answer: Using mplayer it is simple to convert an ASF file to MP3. Ensure you have mplayer installed (On CentOS this would be "yum install mplayer"). mplayer infile.asf ...
  • Linux: How do I setup CentOS 7 for KVM Virtualisation with a bridged network [OVH/Hetzner]?
    Answer: Coming from a minimal install the first step is to install the required software # yum install net-tools qemu-kvm libvirt virt-install bridge-utils bind-utils Convert the network configuration ...
  • Command Line: How do I setup VNC for a user on Centos 7?
    Answer: To setup your server to run a full desktop VNC session first we need to install the required packages. yum groupinstall "GNOME Desktop";yum install tigervnc-server xorg-x11-fonts-Type1 Once ...
  • Linux: How do I change the timezone on Centos 7 to UTC?
    Answer: CentOS 7 now includes a tool to change the timezone, to view your current timezone run the following command. timedatectl This should display the current timezone configuraton. ...
  • Linux: How do I setup SNMPd on CentOS 7?
    Answer: To setup SNMP daemon firstly install the required packages. yum install net-snmp net-snmp-devel net-snmp-libs net-snmp-utils Then edit the main configuration file vi /etc/snmp/snmpd.conf Find the line starting with "com2sec" ...
  • Command Line: How do I rename a KVM VM?
    Answer: This example works on CentOS 7, but will likely work on other distributions too.   Save a copy of the Virtual Machines configuration (replacing VMNAME with the ...
  • Linux: How do I alter the kernel cmdline and rebuild grub2 on CentOS 7?
    Answer:   The kernel command line (cmdline) can be edited in "/etc/default/grub" (GRUB_CMDLINE_LINUX).   Once edited you will need to rebuild the config for grub2 using the following command   grub2-mkconfig --output=/boot/grub2/grub.cfg   You ...

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