Firewall has holes

[Jay Kelly]

I did a check on my firewall using grc.com and found I have a hole from port
139 NetBios. Which I sure I did while I was playing with Samba. The question
is how can I reverse this and shut down netbois. I have try to comment out
netbios in /etc/sevides but I still have the problem. I want my firewall to
be as stealth as possible. Any help would be great guys