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".

1. Monitor packets to see if anyone is running a local LAN gnucleus network.
2. If not, get some buddies to pass the word you are all using gnucleus in LAN mode and tell them the secret network name.
3. Check on IRC for others sharing on your local network.

Check <A HREF="http://groups.google.com/groups?q=gnutella+firewall&hl=en&lr=lang_en&selm=f a.je49ltv.1930fo4%40ifi.uio.no&rnum=3">this</A> out.

In the worst case, try:

use gtk-gnutella or some other client which allows <A HREF="http://www.samair.ru/xwww/proxy.htm">a proxy connection</A>.

But I don't think you need to. Most clients let you specify a port other than 6347, just try unused ports, you should be able to get files by push request.

If it doesn't work it is because the firewall is lousy. A good firewall should track your outgoing push request, and allow the incoming push back along the same connection. If it doesn't work, then I wonder whether you can get any web pages that are not on 80 or 8080?

Gnutella uses HTTP just like a web browser. A push request works just like a web page retrieval, AFAIK.

You might not serve many uploads, but I think it will work. If not, I think the protocol could easily be fixed (and should be! who wants to be blocked by sniffy system administrators!) so that all most requests work like web page requests.

The SysAdmin