I screwed up royally here. We always use randomly generated passwords.
We keep them in a password database that we manage with MyPasswordSafe
(http://freshmeat.net/projects/myps/). Anyway, I won't tell you guys
what I did because it's very disturbing to tell, but the thing is the
firewall is fully configured and we can't access it anymore. I have
physical access to the machine. Is there something I could do?