How to enable proposed archive repo on Ubuntu Linux to install packages

H ow do I enable the proposed archive for Ubuntu 16.04 LTS use the apt-get to installed selected kernel updated that is not released yet?   A proposed package provides an update that is not…

How to rename KVM virtual machine (VM) domain with virsh command

H ow do I rename KVM-powered virtual machine from foo to bar using virsh command line option on Linux?   There are two ways to rename a domain/VM. Let us see how to change the…

How to add disk image to KVM virtual machine with virsh command

H ow do I add additional disk storage to a guest operating system to KVM virtual machine with virsh command on Linux operating system?   You can easily add additional hard drives to KVM domain/VM…

How to enable KVM virsh console access for Ubuntu Linux VM

I just followed your tutorial and setup KVM with Ubuntu Linux as a new guest virtual machine. However, I am unable to use the command: ‘virsh console vm’. How do I setup and enable console…

How to auto start LXD containers at boot time in Linux

I am using LXD (“Linux container”) based VM. How do I set an LXD container to start on boot in Linux operating system?   You can always start the container when LXD starts on boot.…

How to create a new config file in Ansible playbook

I wanted to create a file named /etc/apt/apt.conf.d/1000-force-ipv4-transport with the value set to ‘Acquire::ForceIPv4 true;’ on 20 cloud servers hosted in AWS. I already setup Ansible playbook to automate stuff. How do I create a…

How to install and configure Varnish cache on Ubuntu Linux 16.04 LTS

H ow do I install Varnish Cache server to improve the performance of my existing Apache web server especially caching dynamic content on Ubuntu Linux 16.04 LTS server?   Varnish Cache is a web application…

How to add an extra second hard drive on Linux LVM and increase the size of storage

I have 250GB disk installed on my home Linux server. I just bought a brand new 250GB SATA disk and I want to add a new disk to my existing LVM volume to increase its…

How to display cpu wise usage using top command on FreeBSD Unix operating system

I recently switched from Linux to FreeBSD. On Linux, I press 1 which show me a breakdown of CPU usage per CPU, but it is not working on FreeBSD. How do I find out the…

How to set rsync speed limit from eating all bandwidth with –bwlimit option

T he rsync command is eating all my bandwidth from a backup script and generating tons of I/O. How do I set a limit for file transfer speed of rsync command on Linux or Unix-like…