Re: Should a nameserver know about itself?

Robert Elz <kre@munnari.OZ.AU> Wed, 09 May 2001 16:28 UTC

Received: from nic.cafax.se ([192.71.228.17]) by ietf.org (8.9.1a/8.9.1a) with SMTP id MAA15253 for <dnsop-archive@odin.ietf.org>; Wed, 9 May 2001 12:28:52 -0400 (EDT)
Received: by nic.cafax.se (8.12.0.Beta5/8.12.0.Beta5) id f49G4Mfg000513 for dnsop-outgoing; Wed, 9 May 2001 18:04:22 +0200 (MEST)
Received: from ratree.psu.ac.th (ratree.psu.ac.th [192.100.77.3]) by nic.cafax.se (8.12.0.Beta7/8.12.0.Beta5) with ESMTP id f49G4ILt000508 for <dnsop@cafax.se>; Wed, 9 May 2001 18:04:20 +0200 (MEST)
Received: from brandenburg.cs.mu.OZ.AU (reserv150.coe.psu.ac.th [203.154.146.150]) by ratree.psu.ac.th (8.9.1/8.9.1) with ESMTP id XAA17082; Wed, 9 May 2001 23:04:17 +0700 (ICT)
Received: from brandenburg.cs.mu.OZ.AU (localhost [127.0.0.1]) by brandenburg.cs.mu.OZ.AU (8.11.0/8.11.0) with ESMTP id f49G4Dh04066; Wed, 9 May 2001 23:04:14 +0700 (ICT)
From: Robert Elz <kre@munnari.OZ.AU>
To: Cathy Murphy <cathym@arin.net>
cc: Bruce Campbell <bruce.campbell@apnic.net>, dnsop@cafax.se
Subject: Re: Should a nameserver know about itself?
In-Reply-To: <Pine.GSO.3.96.1010509111201.4658E-100000@ops.arin.net>
References: <Pine.GSO.3.96.1010509111201.4658E-100000@ops.arin.net>
Mime-Version: 1.0
Content-Type: text/plain; charset="us-ascii"
Date: Wed, 09 May 2001 23:04:13 +0700
Message-ID: <4064.989424253@brandenburg.cs.mu.OZ.AU>
Sender: owner-dnsop@cafax.se
Precedence: bulk

    Date:        Wed, 9 May 2001 11:13:33 -0400 (EDT)
    From:        Cathy Murphy <cathym@arin.net>
    Message-ID:  <Pine.GSO.3.96.1010509111201.4658E-100000@ops.arin.net>

  | When would this ever happen?

Cricket and Mats answered already.

The important thing to be aware of is that there aren't any
different types of domain based upon their names - all domains
are created equal, and remain equal.   Any domain can have any RR
in it.   Any time you're tempted to generalise based upon domain
name, you're almost invariably going to be wrong.

The only significance the various domain name trees have is how
one registers in them (what the various registrars will allow to
be registered there) and what lookups are conventionally directed
to them (as a first resort, a CNAME (or DNAME) can then point you
anywhere).

Technically, everything that applies to one domain applies to every domain
(with the root domain as the one and only special case).

kre