From owner-freebsd-questions  Mon Oct  1 18:13:17 2001
Delivered-To: freebsd-questions@freebsd.org
Received: from ds9.dreamhaven.org (cx1245853-a.cv1.sdca.home.com [24.38.4.250])
	by hub.freebsd.org (Postfix) with ESMTP id C899437B40B
	for <freebsd-questions@freebsd.org>; Mon,  1 Oct 2001 18:13:13 -0700 (PDT)
Received: from data (helo=localhost)
	by ds9.dreamhaven.org with local-esmtp (Exim 3.33 #1)
	id 15oE7T-000Od0-00; Mon, 01 Oct 2001 18:13:11 -0700
Date: Mon, 1 Oct 2001 18:13:11 -0700 (PDT)
From: Bryce Newall <data@dreamhaven.org>
To: Nick Rogness <nick@rogness.net>
Cc: FreeBSD Questions List <freebsd-questions@FreeBSD.ORG>
Subject: Re: Natd/ipfw/redirect issue
In-Reply-To: <Pine.BSF.4.21.0110011937450.2678-100000@cody.jharris.com>
Message-ID: <Pine.BSF.4.33.0110011802440.580-100000@ds9.dreamhaven.org>
MIME-Version: 1.0
Content-Type: TEXT/PLAIN; charset=US-ASCII
Sender: owner-freebsd-questions@FreeBSD.ORG
Precedence: bulk
List-ID: <freebsd-questions.FreeBSD.ORG>
List-Archive: <http://docs.freebsd.org/mail/> (Web Archive)
List-Help: <mailto:majordomo@FreeBSD.ORG?subject=help> (List Instructions)
List-Subscribe: <mailto:majordomo@FreeBSD.ORG?subject=subscribe%20freebsd-questions>
List-Unsubscribe: <mailto:majordomo@FreeBSD.ORG?subject=unsubscribe%20freebsd-questions>
X-Loop: FreeBSD.ORG

On Mon, 1 Oct 2001, Nick Rogness wrote:

> 	This question gets asked at least 100
> 	times a month and the answer could be found by searching the mail
> 	archives at www.freebsd.org.

Sorry... I had looked around on the archives quite a bit and hadn't found
anything useful.  Although I didn't now exactly which search terms would
help either.  But regardless...

> 	internal requests is to have your internal DNS server resolve your
> 	mail server IP to an internal IP.  You should not have nat doing

That would be the optimal solution, except that if I set up the DNS to
resolve to an internal IP address, then no outside machines would be able
to contact the mail server.  Which brings up another question:  Is there a
way I could set up my DNS server to resolve a given hostname to one IP for
requests coming from certain IP addresses, and to another IP for all the
other IPs?

TIA

*********************************************************
*    Bryce Newall    *    Email: data@dreamhaven.org    *
*               www.dreamhaven.org/~data                *
*  "Computers make very fast, very accurate mistakes."  *
*********************************************************


To Unsubscribe: send mail to majordomo@FreeBSD.org
with "unsubscribe freebsd-questions" in the body of the message