So, I have a few UPSs laying around. Well, they’re actually in use. Today I decided to set them up to actually cleanly shut down machines connected to them if the power’s off that long. Because it’s not trivial (but also not difficult), I’ll document it here. I’m using nut to manage this all – mainly because it works over the network. One UPS powers two machines in one case, and I want to monitor them all from one workstation, so networkability is important.