Some bookmarks
On this post, I'll keep track of some pages I found very helpfull.
Security
If you struggle with SELinux but you don't want to simply disable it, here is a good start
Here is a post that shows how easy it is to use client-side certificate authentication with NGINX. I used it to protect the admin pages of this blog... It took me less than 15 minutes to set it up...
System
Some interesting info about systemd services...