Linux Netfilter discussions
 help / color / mirror / Atom feed
From: Alistair Tonner <Alistair@nerdnet.ca>
To: netfilter@lists.netfilter.org
Subject: Re: Mail Server Behind IPTABLES
Date: Wed, 1 Sep 2004 10:50:44 -0400	[thread overview]
Message-ID: <200409011050.44393.Alistair@nerdnet.ca> (raw)
In-Reply-To: <7768933ECEDCA644AF7908B278CF125D021454@exchange.datec.com.fj>

On August 31, 2004 09:01 pm, Ajen Diwakar wrote:
> Hi All
>
> I am new to IPTABLES usage. I have linux(RH) 9.0.
> The external IP address eth1 is 202.62.x.x
> The internal ip address is 10.0.0.4
>
> My mail server IP address is 10.0.0.10
>
> How do I setup my iptables so that the mail to my record get transfred
> to the mail server.
>
> Any assistance will be appreciated.

	iptables -t nat -A PREROUTING -p TCP -i {internet device} -d 202.62.x.x  \ 
--dport 25 -j DNAT -to 10.0.0.10

	iptables -A FORWARD -p TCP -i {internet device} -d 10.0.0.10 --dport 25  \
-j ACCEPT

	(assuming FORWARD -P DROP )


	Alistair Tonner


  parent reply	other threads:[~2004-09-01 14:50 UTC|newest]

Thread overview: 20+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2004-09-01  1:01 Mail Server Behind IPTABLES Ajen Diwakar
2004-09-01  4:22 ` George Alexandru Dragoi
2004-09-01 11:54   ` Policy Misunderstanding: RTFM Guidance Requested Mike
2004-09-01 13:27     ` Deepak Seshadri
2004-09-01 15:46       ` Mike
2004-09-01 16:50         ` Jason Opperisano
2004-09-01 17:53           ` Mike
2004-09-01 17:38         ` Deepak Seshadri
2004-09-01 16:40       ` Mike
2004-09-01 14:44     ` Alistair Tonner
2004-09-01 16:20       ` Mike
2004-09-01 16:53         ` Alistair Tonner
2004-09-01 18:12           ` Mike
2004-09-01 16:43     ` Jason Opperisano
2004-09-01 14:50 ` Alistair Tonner [this message]
     [not found]   ` <1094054540.5456.16.camel@matevz.net>
2004-09-01 16:27     ` Mail Server Behind IPTABLES Alistair Tonner
2004-09-01 18:12       ` Matevz
2004-09-01 18:19         ` Jason Opperisano
2004-09-01 18:25           ` Jason Opperisano
2004-09-01 18:23         ` Alistair Tonner

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=200409011050.44393.Alistair@nerdnet.ca \
    --to=alistair@nerdnet.ca \
    --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