I was bemused recently when I wrote a story about essential Linux server commands only to have people complain about my covering older init and run-level technology instead of the controversial but popular systemd. This newer way of booting Linux systems became popular in 2015. Unfortunately, some readers fail to understand that a feature that’s been deployed for two years means nothing for server operating system lifespans.
Take, for example, the five-year-old Ubuntu 12.04. Canonical, Ubuntu’s parent company, has just announced that this version of Ubuntu will be given extended security support.