Linux Netfilter discussions
 help / color / mirror / Atom feed
From: Sasa Stupar <sasa@stupar.homelinux.net>
To: Netfilter ML <netfilter@lists.netfilter.org>
Subject: Re: Redirection question
Date: Mon, 20 Dec 2004 22:33:06 +0100	[thread overview]
Message-ID: <41C74512.6080604@stupar.homelinux.net> (raw)
In-Reply-To: <41C7066D.7050604@stupar.homelinux.net>

Sasa Stupar a écrit :

> Sasa Stupar a écrit :
> 
>> Hi!
>>
>> I have installed mail server on my lan. Now I would like to redirect 
>> all lan users to use that mail server as smtp (similar as transparent 
>> proxy with squid). How do I do that smtp redirection?
>> I was thinking something like:
>> -------------
>> iptables -t nat -A PREROUTING -i eth0 -s ! smtp-box -p tcp --dport 25 
>> -j DNAT --to smtp-box:25
>> iptables -t nat -A POSTROUTING -o eth0 -s local-network -d smtp-box -j 
>> SNAT --to iptables-box
>> iptables -A FORWARD -s local-network -d smtp-box -i eth0 -o eth0 -p 
>> tcp --dport 25 -j ACCEPT
>> --------------
>> Is this correct?
>>
>> Regards,
>> Sasa
>>
> 
> I forgot some more infos:
> running on FC3 with sendmail. This is also a router with 2 NIC
> installed: one for internet and one for LAN.
> 
> Sasa

Solved. It is working as I have mentioned above.

Sasa



  reply	other threads:[~2004-12-20 21:33 UTC|newest]

Thread overview: 7+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2004-12-20 17:02 Redirection question Sasa Stupar
2004-12-20 17:05 ` Sasa Stupar
2004-12-20 21:33   ` Sasa Stupar [this message]
  -- strict thread matches above, loose matches on Subject: below --
2004-12-20 22:47 Hudson Delbert J Contr 61 CS/SCBN
2004-12-21  7:52 ` Sasa Stupar
2003-03-11 15:04 Hernán Mailluquet
2003-03-11 15:20 ` Jesper Lund

Reply instructions:

You may reply publicly to this message via plain-text email
using any one of the following methods:

* Save the following mbox file, import it into your mail client,
  and reply-to-all from there: mbox

  Avoid top-posting and favor interleaved quoting:
  https://en.wikipedia.org/wiki/Posting_style#Interleaved_style

* Reply using the --to, --cc, and --in-reply-to
  switches of git-send-email(1):

  git send-email \
    --in-reply-to=41C74512.6080604@stupar.homelinux.net \
    --to=sasa@stupar.homelinux.net \
    --cc=netfilter@lists.netfilter.org \
    /path/to/YOUR_REPLY

  https://kernel.org/pub/software/scm/git/docs/git-send-email.html

* If your mail client supports setting the In-Reply-To header
  via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line before the message body.
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox