On 4/3/06, Jesus E Zepeda <JZepeda@customautomation.com> wrote:
>
> Hi, everyone!
>
> How do you limit access from green to red in ipcop? I understand that by
> default a green interface has all services open. I want to restrict
> access to port 80 for all users in the green interface. To do this I
> think I need to modify the iptables. But where do they live?
>
> Thanks in advance,
>
> Jesus Zepeda


Well, assuming NAT, try

iptables -I FORWARD -p TCP --dport 80 -j DROP

also, you might want to check out
http://iptables-tutorial.frozentux.net/iptables-tutorial.html for excellent
help with iptables.