#/bin/bash

iptables -F

iptables -F -t nat

iptables -X

modprobe ip_iptables

modprobe iptable_nat

modprobe ip_nat_ftp

modprobe ip_nat_irc

modprobe ip_conntrack

modprobe ip_conntrack_ftp


iptables -P INPUT DROP

iptables -P OUTPUT DROP

iptables -P FORWARD DROP

iptables -A INPUT -i lo -j ACCEPT

iptables -A INPUT -m state --state ESTABLISHED,RELEATED -j ACCEPT

iptables -A INPUT -p tcp -m multiport --dport 80,22 -j ACCEPT

iptables -A INPUT -p icmp --icmp-type 0 -j ACCEPT

iptables -A OUTPUT -o lo -j ACCEPT

iptables -A OUTPUT -m state --state ESTABLISHED,RELEATED -j ACCEPT

iptables -A OUTPUT -p tcp -m multiport --sport 80,22 -j ACCEPT

iptables -A OUTPUT -p icmp --icmp-type 8 -j ACCEPT