[Wolves] Firewall Question

[Peter Evans]

Would just like to canvas some opinions on whether the firewall that comes as 
standard with the SuSE Pro 9.1 distro is good enough to count on as a decent 
line of defense, or whether I'm just asking for trouble?

Anyone have any links for web-sites that could be used to probe my machine and 
report vulnerabilities? I've used both Symantec and NAI for Windows before 
and was wondering if there's a Linux alternative?
-- 
Regards,

Pete Evans.