*filter
:INPUT ACCEPT [0:0]
:FORWARD ACCEPT [0:0]
:OUTPUT ACCEPT [155:26977]

# Réponses
-A INPUT -m state --state RELATED,ESTABLISHED -j ACCEPT

# Localhost
-A INPUT -i lo -j ACCEPT

# Ping
-A INPUT -p ipv6-icmp -j ACCEPT

# SSH
-A INPUT -i eth0 -p tcp -m state --state NEW -m tcp --dport 22 -j ACCEPT

# HTTP(S)
-A INPUT -i eth0 -p tcp -m state --state NEW -m tcp --dport 80 -j ACCEPT
-A INPUT -i eth0 -p tcp -m state --state NEW -m tcp --dport 443 -j ACCEPT

# IRC (TLS)
-A INPUT -i eth0 -p tcp -m state --state NEW -m tcp --dport 6697 -j ACCEPT

# Murmur
-A INPUT -i eth0 -p tcp -m state --state NEW -m tcp --dport 64738 -j ACCEPT
-A INPUT -i eth0 -p udp --dport 64738 -j ACCEPT

# Tout le reste
-A INPUT -i eth0 -j DROP

# DDOS
-A INPUT -p tcp -m tcp --tcp-flags RST RST -m limit --limit 2/sec --limit-burst 2 -j ACCEPT
-A INPUT -p tcp -m tcp --tcp-flags RST RST -j DROP
COMMIT