I think I'm posting this in the right area... if not, apologies!
Every so often, Leopards firewall wants to know if I want to let 'nmblookup' to allow incoming netowrk connections. I don't beleive this to be anything mysterious or bad - an internet search suggests this is part of the 'Samba suite', whatever that is...
For the moment, I've been clicking Deny, but in the future, what should I do?
Actually I'm a little curious about this too. I've had OS X 10.5.1 installed since about christmas and this is the first time I've seen it ask for nmblookup to allow connections with the firewall up. I also clicked deny.