This article gives you step-by-step instructions on how to increase the size of the LVM root partition on a Linux virtual machine running on Oracle Virtual Box.
Examples of how to use dd command for disk image backup and restore and for cloning disk partitions or an entire disks.
This article explains how to create a custom new service units and CentOS 7 with systemd and how to manage services using systemctl command.
How to install and configure LAMP stack (Linux, Apache, MySQL PHP) in Ubuntu 16.04
How to configure network interfaces in Ubuntu 16.04 LTS with static IP addresses or DHCP from command line.
This article explains how to configure network interfaces in Centos 7 from command line interface without using Network Manager.
This article shows you how to install and configure a PXE boot server and NFS in CentOS 7 to use as a Network Install Server
This article show you how to disable selinux in CentOS 7, adjust date and time and how to manage users in CentOS 7 from command line.
Step-by-step instructions with screenshot on how to install CentOS 7 and to configure network, manage packages and services after minimal install.
New updated Ubuntu cheatsheet for systemd based versions