Iptables to Allow Incoming FTP


#!/bin/bash
*filter
:INPUT ACCEPT [0:0]
:FORWARD ACCEPT [0:0]
:OUTPUT ACCEPT [133:14837]
-A INPUT -p tcp -m tcp –dport 21 -j ACCEPT
-A INPUT -p tcp -m state –state ESTABLISHED -j ACCEPT
-A INPUT -j REJECT –reject-with icmp-port-unreachable
-A OUTPUT -p tcp -m tcp –sport 20 -j ACCEPT
COMMIT

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