- Keep working with the server.
- Maybe uninstall Apache2 and install NGINX, a competing webserver.
- Keep a running stat on ssh “attackers”.
- installing and running your own instance of Minecraft, Wordpress WireGuard VPN or Mediawiki.
- Spend your free “surfing” time avoiding articles on Gnome, KDE or i3 – and checking out any articles like “20 Linux commands every sysadmin should know”.
Three certs that matter -