#!/bin/bash
iptables -F
iptables -A INPUT -p tcp --dport <MCPORT> -j ACCEPT
iptables -A INPUT -p udp --dport <MCPORT> -j ACCEPT
iptables -A INPUT -p tcp --dport 22 -j ACCEPT
iptables -P INPUT DROP
iptables -P FORWARD DROP
iptables -P OUTPUT ACCEPT
iptables -A INPUT -i lo -j ACCEPT
iptables -A INPUT -m state --state ESTABLISHED,RELATED -j ACCEPT
/sbin/service iptables save