tain.totalcodex.net

Hi, im trying to disable my firewall so i can host. Im sure this problem has been addressed many times. I am on a mac and use 1.5 and have gone to security in system preferences and disabled my firwall, but it still wont let me host (or at least no one is joining). is there something else i should do?
also, if i gave my IP and broadcast address to golem, how worried should i be?
cheers
Spoon

myth specific instructions can be found at portforward.com. if those don't work no doubt someone can help with the specifics.