I am behind a university firewall that I can't do anything about. All incoming ports are closed except 22 and 113. I need 22 for my ssh server and 113 to be able to access some irc networks (that's probably why they are open).

Almost all outgoing ports are open, except your usual filesharing program ports, like kazaa 1214, edonkey2000 4661-4665, gnutella 6346,6347. Is there some (gnutella) client that I can configure so that it will not try to connect to servers running on these blocked ports? My best choice right now is to go with audiogalaxy which apparently sets a random listening port between 21 and 41000 on their "satellite clients".