ssh_remote_port_forwarding.sh

#!/bin/bash

# Clear iptables rules
iptables -P INPUT ACCEPT
iptables -P FORWARD ACCEPT
iptables -P OUTPUT ACCEPT
iptables -F
iptables -X

# SSH Scenario
iptables -F
iptables -P INPUT DROP
iptables -P FORWARD DROP
iptables -A INPUT -i lo -j ACCEPT
iptables -A INPUT -m state --state ESTABLISHED,RELATED -j ACCEPT
iptables -A INPUT -p tcp --dport 3389 -m state --state NEW -j ACCEPT
iptables -A INPUT -i lo -j ACCEPT