IPTables Config File Example

:INPUT ACCEPT [0:0]

:FORWARD ACCEPT [0:0]

:OUTPUT ACCEPT [0:0]

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

-A INPUT -p icmp -j ACCEPT 

-A INPUT -i lo -j ACCEPT 

-A INPUT -p tcp -m state --state NEW -m tcp --dport 22 -j ACCEPT 

-A INPUT -p tcp -m state --state NEW -m tcp --dport 80 -j ACCEPT 

-A INPUT -j REJECT --reject-with icmp-host-prohibited 

-A FORWARD -j REJECT --reject-with icmp-host-prohibited 

COMMIT