You can dump all your iptables rules and allow everything through by running
Code:
iptables -P INPUT ACCEPT
iptables -P FORWARD ACCEPT
iptables -P OUTPUT ACCEPT
iptables -F
from the command line as root. This will be reset when you reboot though. Hopefully someone can tell you which script to edit to change this for you permanently.
HTH and weldome to LinuxQuestions
cheers
Jamie