Request certificates from LetsEncrypt after having proven that you own the domain.
Prove you own a domain to LetsEncrypt, using the ACME PHP tool.
Register with LetsEncrypt using the ACME PHP.
Install the ACME PHP tool.
See just how easy it is to create keys for your services that have limited access rights. This could save your bacon.
Install MariaDB 5.5 on CentOS 7
Quick start for using PrismJS for syntax highlighting.
A brief tutorial on using prepared statements and their pros/cons.
Install the unity tweak tool from a PPA
Instructions for installing the various VLC PPAs
Install the Inotify extension for PHP 7.0 in Ubuntu 16.04
Instructions for switching to DigitalOcean as a DNS provider.