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To: Shane Kerr <shane@ripe.net>
Cc: Robert Elz <kre@munnari.OZ.AU>, dnsop@cafax.se
From: Mark.Andrews@nominum.com
Date: Fri, 01 Jun 2001 10:00:37 +1000
In-reply-to: Your message of "Thu, 31 May 2001 12:29:09 +0200." <Pine.BSI.4.05L.10105311148580.26280-100000@x17.ripe.net>
Sender: owner-dnsop@cafax.se
Subject: Re: Should a nameserver know about itself?


> There is also the issue of educating administrators on this methodology,
> which isn't the way that most forward delegation is carried out (e.g.
> one of nominum.com's name servers is ns-ext.vix.com, which doesn't fit
> in the "use only name servers in the domain to respond authoritatively
> for that domain" model.

	As a model for good DNS delegation it is overkill.

	A just as robust model is "a nameserver should be a official
	(not stealth) server for the zone it lives in".  ns-ext.vix.com
	fits this model as it is a server for vix.com.

	This leads to NS chains of length 1.

	Mark
--
Mark Andrews, Nominum Inc.
1 Seymour St., Dundas Valley, NSW 2117, Australia
PHONE: +61 2 9871 4742                 INTERNET: Mark.Andrews@nominum.com

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