Rudiahlers@gmail.com wrote on Sun, 10 Aug 2008 14:11:06 +0200:
443/tcp closed https
sorry, I dind't look close enough. "closed", of course, means closed ;-)
Did you disable firewall for testing on *every* host that is involved (e.g. on the hosts you try to access/run nmap from), including the gateway? Is this the only IRC service you have running? I'd rather guess you don't have a xen problem, but simply block that port somewhere on the way, and be it on your gateway. Running tcpdump on every involved host may help.
Kai