Re: POP3 Forwarding ok or not.

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El mar, 18 de 01 de 2005 a las 20:23, Jason Opperisano escribiÃ:
> On Tue, Jan 18, 2005 at 04:58:58PM -0300, Pablo Allietti wrote:
> > hi people. 
> > 
> > 
> > i have a question..
> > 
> > my net is 
> > 
> > 
> > 		|200.40.228.64/28
> > 		|
> > 		Firewall FC2 (200.40.229.67)
> > 		|	dns midomain.com
> > 		|
> > 		|192.168.1.0/24
> > -------------------------------
> >     |
> >     |
> >     |
> > FC2 (pop3) 192.168.1.6
> > 
> > 
> > i need to check mail in midomain.com but the pop3 server and mail server
> > is in 192.168.1.8
> > 
> > is that correct to check and send mail?
> > 
> > iptables -A FORWARD -i eth1 -o eth0 -p tcp -s 0/0 -d 192.168.1.6 --dport
> > 110 -j ACCEPT
> > iptables -A FORWARD -i eth1 -o eth0 -p tcp -s 0/0 -d 192.168.1.6 --dport  
> > 25 -j ACCEPT
> 
> those are correct for your filter rules.  do you already have the NAT
> setup for this as well?
> 
>   iptables -t nat -A PREROUTING -i eth1 -p tcp --dport 110 \
>     -j DNAT --to-destination 192.168.1.6
> 
>   iptables -t nat -A PREROUTING -i eth1 -p tcp --dport 25 \
>     -j DNAT --to-destination 192.168.1.6
> 
> -j
> 
> --
> "This has purple stuff inside - purple is a fruit."
>         --The Simpsons

And of course also the RELATED and ESTABLISHED rules, or the rules
for the traffic going out of the machines.

-- 
Jose Maria Lopez Hernandez
Director Tecnico de bgSEC
jkerouac@xxxxxxxxx
bgSEC Seguridad y Consultoria de Sistemas Informaticos
http://www.bgsec.com
ESPAÃA

The only people for me are the mad ones -- the ones who are mad to live,
mad to talk, mad to be saved, desirous of everything at the same time,
the ones who never yawn or say a commonplace thing, but burn, burn, burn
like fabulous yellow Roman candles.
                -- Jack Kerouac, "On the Road"




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