Two decisions determine how a MariaDB install turns out on a fresh Ubuntu VPS: which repository the packages come from, and whether the post-install hardening script actually gets run. Skip either one and you end up with a database that's either years out of date or wide open by default. This guide covers both paths — …

A stock Ubuntu install ships an ancient Docker package under a different name entirely — docker.io — if it ships one at all, and that package trails months or years behind what Docker actually maintains. The reliable path on a VPS is Docker's own apt repository, which tracks Docker Engine releases directly and gets you …