Breezy->Dapper and hibernate/suspend

[Jose Gomez-Dans]

Hi!
I upgraded my home server (printers and storage, namely) a couple of
days ago. Everything went fine, but for one little glitch: the
computer goes into hibernation/suspend (I can't tell which), and hence
the server disappears from the network. I would like to disable these
powersaving features, but how can I go about that?

The server is a headless one, so I can only access it through ssh.

Cheers!