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Date:      Fri, 4 May 2001 17:17:23 +0300
From:      Peter Pentchev <roam@orbitel.bg>
To:        Andrew Barros <abarros@tjhsst.edu>
Cc:        "lists@mail.ru" <lists@mail.ru>, freebsd-security@FreeBSD.ORG
Subject:   Re: reverse or not
Message-ID:  <20010504171723.A18615@ringworld.oblivion.bg>
In-Reply-To: <20010504090432.H9233@tjhsst.edu>; from abarros@tjhsst.edu on Fri, May 04, 2001 at 09:04:32AM -0400
References:  <5.0.2.1.2.20010503145244.00a12e50@nol.co.za> <Pine.BSF.4.30.0105031358300.26752-100000@R181204.resnet.ucsb.edu> <20010503170027.B9233@tjhsst.edu> <3AF1DC23.32BB39B3@globalstar.com> <3AF23077.55DEA3D8@mail.ru> <20010504084039.G9233@tjhsst.edu> <20010504155725.Q13382@ringworld.oblivion.bg> <20010504090432.H9233@tjhsst.edu>

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On Fri, May 04, 2001 at 09:04:32AM -0400, Andrew Barros wrote:
> Yes, ns1.tjhsst.edu is on the same ethernet segment as the box.
> 
> 127.0.0.1 is in /etc/hosts

There is at least one MTA I know (qmail) that does not honor /etc/hosts.
There might be others like that.  Make sure a lookup for 127.0.0.1 is
answered by your nameserver.

Actually, this is something that I was going to ask about in my previous
post, but I plain forgot ;)  Yes, telnetd does honor /etc/hosts, some MTA's
don't.  Is 127.0.0.1 in DNS?

G'luck,
Peter

-- 
When you are not looking at it, this sentence is in Spanish.

> On Fri, May 04, 2001 at 03:57:25PM +0300, Peter Pentchev wrote:
> ->On Fri, May 04, 2001 at 08:40:39AM -0400, Andrew Barros wrote:
> ->> 
> ->> There are two things that I'm sure of
> ->> 
> ->> 	1) The boxes have correct reverse DNS
> ->> 
> ->> 	2) They use ns1.tjhsst.edu as their nameserver(a different box)
> ->> 		which has the correct reverse DNS
> ->> 
> ->> The problem is that while these things are true, and out T1 is up
> ->> it works normally. When the T1 goes out, it takes a _long_ time. Telnet
> ->> ,however, is unaffected by this.
> ->
> ->When you say 'correct reverse DNS', you do mean 127.0.0.1 too, right?
> ->And (a stupid question, but one that needs asking nevertheless) ns1.tjhsst.edu
> ->is reachable when your T1 goes down, right?

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