Setup and Installation guides to help system administrators manage their VPS.
Setting up a CentOS VPS as an SFTP server with linux users and the SFTP shell.
Security tips and best practice configurations.
Using softwarecollections.org to upgrade Apache 2.2 to 2.4 and PHP 5.3 to 5.4/5.5/5.6
Installing the opensource issue tracking platform redmine.
Installing the free certificate authority automated tool CertBot.