Which software do you use to manage/monitor/update your server(s)?

Welp, I just SSH into it and fix shit if it breaks.
Regarding the game servers, AMP.

On my personal machine i just use SFTP over Nautilus (or rather that MATE Equivalent) for files and SSH in the terminal for the rest. Works well, and doesn't really feel like a separate System. On my work machine, i love to use MobaXTerm.