gistfile1.txt

vim /etc/init.d/firewall


#!/bin/bash
### BEGIN INIT INFO
# Provides:          firewall
# Required-Start:    $remote_fs $syslog
# Required-Stop:     $remote_fs $syslog
# Default-Start:     2 3 4 5
# Default-Stop:      0 1 6
# Short-Description: Apply firewall configuration
# Description:       Apply firewall configuration.
### END INIT INFO
# Script iptables Thomas Tourlourat
## Règles iptables.
iptables -I INPUT -i lo -j ACCEPT
iptables -A INPUT -m state --state ESTABLISHED,RELATED -j ACCEPT
iptables -A INPUT -p tcp -i eth0 --dport ssh -j ACCEPT
iptables -A INPUT -p icmp -i eth0 -j ACCEPT
iptables -P INPUT DROP




chmod +x /etc/init.d/firewall
update-rc.d firewall defaults
reboot