IRC

Our IRC server listens on both ports irc://irc.codehaus.org:6667 and irc://irc.codehaus.org:7776. Additionally, an HTTP-based client is available at http://irc.codehaus.org/

SSH

If you can't ssh out of your location, you can also attempt to connect on port 443, which will generally get through as it masquerades as HTTP-over-SSL traffic, which proxies can't touch.

If you wanna do a CVS checkout, I found that the following script worked (save as ssh443)

#!/bin/sh
ssh -p 443 $*

Then do

export CVS_RSH=ssh443

and perform your CVS checkout as normal and it works.

set SVN_SSH=plink -P 443

SMTP

Your ISP perchance blocks SMTP traffic on port 25 to curb spam. If you're a hausmate, you can perform SMTP-auth against port 2525. Use your Codehaus username and password. If you don't have a password, make a sacrifice to a despot and ask nicely.