When will DigitalOcean release Droplet images for Ubuntu Server 18.04 LTS (Bionic Beaver)?
How to create swap space on Ubuntu 16.04 / 16.10 / 17.04 / 17.10
How to route your PHP mail() postfix emails through Gmail's SMTP server on Ubuntu 20.04, 18.04 / 19.10.
A restart is usually required when an update to the Linux kernel has been installed. These are often security patches that only come into effect after reboot.
How-to guide for configuring postfix to work with the PHP mail() function on Ubuntu 20.04, 18.04 and 16.04.