#!/bin/bash
./iptables -I INPUT 2 -i eth0 -p udp -m udp –dport 69 -j ACCEPT
./iptables -I OUTPUT 2 -i eth0 -p udp -m udp –dport 69 -j ACCEPT
./iptables -I INPUT 3 -p udp –sport 1024: –dport 1024: -m state –state NEW,ESTABLISHED,RELATED -j ACCEPT
./iptables -I INPUT 4 -j DROP
./iptables -I OUTPUT 3 -j DROP