Constructeur iptables

#!/bin/bash
# Ipsight iptables rules
# Generated by Epsight Tools

# Flush existing rules
iptables -F

# Default policies
iptables -P INPUT DROP
iptables -P FORWARD DROP
iptables -P OUTPUT ACCEPT

# Allow loopback
iptables -A INPUT -i lo -j ACCEPT

# Allow established/related
iptables -A INPUT -m state --state ESTABLISHED,RELATED -j ACCEPT

# Custom rules
iptables -A INPUT -p tcp --dport 22 -m comment --comment "SSH" -j ACCEPT

# Save rules
iptables-save > /etc/iptables/rules.v4