#!/bin/sh
#Default Policy Settings
iptables -P INPUT DROP
iptables -P FORWARD DROP
iptables -P OUTPUT ACCEPT
#Allow local traffic over loopback adapter
iptables -A INPUT -i lo -j ACCEPT
#Allow replies to connections we initiate
iptables -A INPUT -m state --state ESTABLISHED,RELATED -j ACCEPT
iptables -I INPUT -s 127.0.0.1 -j ACCEPT
iptables -I INPUT -m state --state RELATED,ESTABLISHED -j ACCEPT
#Allow connections to services (SSH, Webmin)
iptables -A INPUT -p tcp --dport 80 -j ACCEPT
iptables -A INPUT -p tcp --dport 25 -j ACCEPT
iptables -A INPUT -p tcp --dport 443 -j ACCEPT
iptables -A INPUT -s 000.000.000.000 -p tcp -m tcp --dport 21 -m state --state NEW -j ACCEPT
iptables -A INPUT -s 000.000.000.01 -p tcp -m tcp --dport 21 -m state --state NEW -j ACCEPT
iptables -A INPUT -s 000.000.000.000 -p tcp -m tcp --dport 22 -m state --state NEW -j ACCEPT
iptables -A INPUT -s 000.000.000.01 -p tcp -m tcp --dport 22 -m state --state NEW -j ACCEPT
iptables -A INPUT -s 000.000.000.000 -p tcp -m tcp --dport 10000 -m state --state NEW -j ACCEPT
iptables -A INPUT -s 000.000.000.01 -p tcp -m tcp --dport 10000 -m state --state NEW -j ACCEPT
iptables -A INPUT -s 000.000.000.000 -p tcp -m tcp --dport 995 -m state --state NEW -j ACCEPT
iptables -A INPUT -s 000.000.000.01 -p tcp -m tcp --dport 995 -m state --state NEW -j ACCEPT