NUT on OSX 10.6 [Sharing a UPS with ReadyNAS and Computers]

I corrected the path above. I believe that /opt/local/* is for all the stuff you install with MacPorts. The bin directory would then be for all your binaries, and the etc directory would be for your config files. I wouldn't be surprised if the Mac doesn't see any UPS notifications while it's asleep, but you would think it would wake up once the power load shifts to the battery. It might be necessary to do some fine-tuning of upsmon.conf to make sure the NUT client can/will actually shut the system down when it needs to. I'd be interested in seeing what works for you on that score - I haven't had the opportunity to play with this much. Also, try modifying the upsmon.conf to experiment with notifications - specifically look at NOTIFYFLAG and NOTIFYCMD. By default it does write to all connected users in Terminal but it looks like it writes to syslog too. You may be able to find these messages in Console. Perhaps you can tie these into Growl or some other similar program? I don't typically use Growl but I know some people get a lot of use out of it. You could also get creative and write a script that uses NOTIFYCMD to send out an e-mail, which is probably what I should do one of these days if I have the time...