jschauma, 
Hey Fediverse! The Spring semester is about to start, and I'll be teaching System Administration again:
https://stevens.netmeister.org/615/
Topics covered include: basic operating system & filesystem concepts, software installation & package management, config management, automation, tools development, TCP/IP networking, common services, system security.
All lectures are online as free videos; if you'd like to follow along, here's the playlist for Week 1:
https://www.youtube.com/playlist?list=PLDadzdouM0VCV7tjurqM8FHY6APK9wvJl
