[wplug] iptable problems

Romano, Christopher cjr6 at exchange.cis.pitt.edu
Mon Dec 17 08:56:30 EST 2001


 

-----Original Message-----
From: coldfire
To: 'wplug at wplug.org'
Sent: 12/16/2001 6:29 PM
Subject: RE: [wplug] iptable problems

> > #SSH 
> > iptables -A INPUT -i ppp0 -p tcp --sport 22 -m state --state
> NEW,ESTABLISHED 
> > -j ACCEPT 
> 
> >You probably want --dport 22.  This rule accepts any connection 
> >originating from port 22 on the remote machine connecting to any port

> >on the machine you're trying to protect. 
> 
> I have this rule:
> iptables -A OUTPUT -o ppp0 -p tcp --dport 22 -m state --state
> NEW,ESTABLISHED -j ACCEPT

>but that rule specifies ppp0 as the outgoing interface ... if you want
>to
>be able to ssh into that particular machine, you should be concerned
>with
>the incoming interface.


>coldie


I have both of these rules.
iptables -A INPUT -i ppp0 -p tcp --sport 22 -m state --state NEW,ESTABLISHED
-j ACCEPT 
iptables -A OUTPUT -o ppp0 -p tcp --dport 22 -m state --state
>NEW,ESTABLISHED -j ACCEPT

one for outgoing and one for incoming.

Chris



More information about the wplug mailing list