Firewall setting

[Manuel Arostegui Ramirez]

El Sábado, 8 de Septiembre de 2007 13:56, edwardspl at ita.org.mo escribió:
> Dear All,
>
> For the Firewall setting, how can we use the ftp and ssh service ?
>
> For file 1 :
>
> #!/bin/bash
>
> modprobe ip_tables
> modprobe ip_nat_ftp
> modprobe ip_conntrack
> modprobe ip_conntrack_ftp
>
> iptables -F
> iptables -X
> iptables -F -t nat
> iptables -X -t nat
> iptables -F -t mangle
> iptables -X -t mangle
>
> iptables -P OUTPUT ACCEPT
> iptables -P FORWARD ACCEPT
> iptables -t nat -P OUTPUT ACCEPT
> iptables -t nat -P PREROUTING ACCEPT
> iptables -t nat -P POSTROUTING ACCEPT
> iptables -t mangle -P PREROUTING ACCEPT
> iptables -t mangle -P POSTROUTING ACCEPT
> iptables -t mangle -P INPUT ACCEPT
> iptables -t mangle -P OUTPUT ACCEPT
> iptables -t mangle -P FORWARD ACCEPT
>
> For file2
>
> iptables -P INPUT DROP
> iptables -A INPUT -i lo -j ACCEPT
> iptables -A INPUT -m state --state ESTABLISHED -j ACCEPT
> iptables -A INPUT -p tcp --dport 21 -j ACCEPT
> iptables -A INPUT -p tcp --dport 22 -j ACCEPT
>

iptables -A INPUT -p tcp -d $SERVER_IP --dport 21 -j ACCEPT
iptables -A INPUT -p tcp -d $SERVER_IP --dport 22 -j ACCEPT

try that one

Cheers
Manuel
-- 
Manuel Arostegui Ramirez.

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