The sort of program that once set up, just ticks along without fuss or bother forever.
For me, as I’m replacing the vms today which I set up five years ago and haven’t needed to touch since;
- HAProxy
- KeepaliveD
Not easy to learn, but once they’re running, they both go on forever.
Debian, uptime right now on my server is 59 days and that’s just because that was when we had a power outage longer than the UPS could keep up with
A couple of decades back I was a Systems Manager at a small campus, and personally admin’d one of the servers. There was a server in the room that had a 3 year uptime when I left. May have been running longer after that.
What UPS do you have?
Just some small consumer grade APC that I got like ten years ago. It’s basically good enough to withstand quick blips but I have it set to send a shutdown command to the server when the batteries fall below 90% because they last about as long as it takes to cleanly power down the machine.