i have installed RedHat 8.0. I also installed Samba. I can see all of my shared files locally when i run smbclient but when i try to connect from another machine tells me it cant through port 139. i checked my security level and it says HIGH, with no boxes checked for any devices, especially eth0. I tried to change it but when i said save it wouldnt let me. I know u can change this file from iptables but i am not sure how, or what it should say inside iptables. Not even sure which file to make the changes on. If somebody can help me or lead me in the right direction i would appreciate it. thanks.

Make sure you are loggen in as root before you run lokkit. You can remove all firewall rules with "iptables -F".

Do: 'iptables -t filter -I INPUT -p TCP --dport 139 -j ACCEPT'

This will insert a rule at the very beginning of the packet filter for incomming connections that will accept any packet coming in on TCP 139.

If this fixes your issue, do a 'iptables-save > /etc/sysconfig/iptables' so that the changes retained after a reboot.

If what Bentz said doesn't work then use iptables -F and give that a try. You'll have to change your iptables rules if this fixes your problem or you'll have to run iptables -F after every reboot, not to mention that after that command you won't have any firewall up and running whatsoever.
p.s. iptables -F removes all your firewall rules.

Joe

If you choose to follow Magueta's advice and ditch your firewall altogether, you can do so by using 'chkconfig --level 2345 iptables off' this will prevent iptables from loading any firewall rules on startup. (This can be reenabled using 'chkconfig --level 2345 iptables on').