I am running a small network at home, a box running debain 3.1, a box running windows xp, and the NAT/FIREWALL box also debian 3.1.
I`m running bind9 on the NAT box to do DNS and I`ve been trying to make a rule stop the dns server being seen on from the internet.
On the NAT the nic cards are as follows :
windows box eth0
debian box eth2
My attemp to achive this is this.
but nmap still saysCode:
iptables -A INPUT -i eth1 -p tcp --dport 53 -j DROP
PORT STATE SERVICE
53/tcp open domain
What am I doing wrong good people ???