[newbie] frirewall question

[stephen]

under mandrake linux is there a way to block workgroups in the firewall especially in the netbios sharing area on ports 137-139 tcp and udp thankyou stephen     --- Outgoing mail is certified Virus Free. Checked by AVG anti-virus system (http://www.grisoft.com). Version: 6.0.198 / Virus Database: 95 - Release Date: 10/4/00