From owner-freebsd-questions@FreeBSD.ORG  Fri Nov  5 08:27:43 2010
Return-Path: <owner-freebsd-questions@FreeBSD.ORG>
Delivered-To: freebsd-questions@freebsd.org
Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:4f8:fff6::34])
	by hub.freebsd.org (Postfix) with ESMTP id 46498106564A
	for <freebsd-questions@freebsd.org>;
	Fri,  5 Nov 2010 08:27:43 +0000 (UTC)
	(envelope-from j.mckeown@ru.ac.za)
Received: from f.mail.ru.ac.za (f.mail.ru.ac.za [IPv6:2001:4200:1010::25:6])
	by mx1.freebsd.org (Postfix) with ESMTP id 4271A8FC14
	for <freebsd-questions@freebsd.org>;
	Fri,  5 Nov 2010 08:27:42 +0000 (UTC)
DomainKey-Signature: a=rsa-sha1; q=dns; c=nofws; s=ru-msa; d=ru.ac.za;
	h=Received:From:Organization:To:Subject:Date:User-Agent:References:In-Reply-To:X-Face:MIME-Version:Content-Type:Content-Transfer-Encoding:Content-Disposition:Message-Id:X-Virus-Scanned:X-Authenticated-User;
	b=NsWM0W/dBH+yxjt4uvBD+pfEbRvqocVX0vHpZOFmHl5Gx4+jJ7tILMnq3YMdCm8WKkmQMkT+bSAd1x/haBJ2w2EcqfND7947ckhPoHvDENF4uUXlgELTBF3FlqB7J06P;
Received: from vorkosigan.ru.ac.za
	([2001:4200:1010:1058:219:d1ff:fe9f:a932]:60511)
	by f.mail.ru.ac.za with esmtpsa (TLSv1:AES256-SHA:256)
	(Exim 4.69 (FreeBSD)) (envelope-from <j.mckeown@ru.ac.za>)
	id 1PEHe7-000LLG-6W
	for freebsd-questions@freebsd.org; Fri, 05 Nov 2010 10:27:39 +0200
From: Jonathan McKeown <j.mckeown@ru.ac.za>
Organization: Rhodes University
To: freebsd-questions@freebsd.org
Date: Fri, 5 Nov 2010 10:27:38 +0200
User-Agent: KMail/1.9.10
References: <20101105053844.71239106577C@hub.freebsd.org>
	<20101105174858.X16633@sola.nimnet.asn.au>
In-Reply-To: <20101105174858.X16633@sola.nimnet.asn.au>
X-Face: $@VrUx^RHy/}yu]jKf/<4T%/d|F+$j-Ol2"2J$q+%OK1]&/G_S9(=?utf-8?q?HkaQ*=60!=3FYOK=3FY!=27M=60C=0A=09aP=5C9nVPF8Q=7DCilHH8l=3B=7E!4?=
	=?utf-8?q?2HK6=273lg4J=7Daz?=@1Dqqh:J]M^"YPn*2IWrZON$1+G?oX3@
	=?utf-8?q?k=230=0A=0954XDRg=3DYn=5FF-etwot4U=24b?=<FO&kjQCGnjz>dTS{i<i?:=p!]'t#K~4)cr7o%ygQiso
MIME-Version: 1.0
Content-Type: text/plain;
  charset="iso-8859-1"
Content-Transfer-Encoding: 7bit
Content-Disposition: inline
Message-Id: <201011051027.38884.j.mckeown@ru.ac.za>
X-Virus-Scanned: f.mail.ru.ac.za (2001:4200:1010::25:6)
X-Authenticated-User: s0900137 from vorkosigan.ru.ac.za
	(2001:4200:1010:1058:219:d1ff:fe9f:a932) using auth_plaintext
Subject: Glue records (was Re: ATTN GARY KLINE)
X-BeenThere: freebsd-questions@freebsd.org
X-Mailman-Version: 2.1.5
Precedence: list
List-Id: User questions <freebsd-questions.freebsd.org>
List-Unsubscribe: <http://lists.freebsd.org/mailman/listinfo/freebsd-questions>, 
	<mailto:freebsd-questions-request@freebsd.org?subject=unsubscribe>
List-Archive: <http://lists.freebsd.org/pipermail/freebsd-questions>
List-Post: <mailto:freebsd-questions@freebsd.org>
List-Help: <mailto:freebsd-questions-request@freebsd.org?subject=help>
List-Subscribe: <http://lists.freebsd.org/mailman/listinfo/freebsd-questions>, 
	<mailto:freebsd-questions-request@freebsd.org?subject=subscribe>
X-List-Received-Date: Fri, 05 Nov 2010 08:27:43 -0000

On Friday 05 November 2010 09:28:27 Ian Smith wrote:
> But you don't always have any control of what parent nameservers do;
> eg we do DNS for a .com but both NS are in .au so DNS reports always
> whinge about lack of glue

They should be whingeing about lack of clue (their own) unless I'm horribly 
wrong about how DNS works.

When a nameserver delegates a zone, it's not responsible for any of that 
zone's records any more, with two exceptions. It provides NS records to 
indicate which nameservers /are/ responsible, and it retains responsibility 
for the A records of nameservers inside the zone - and only those 
nameservers. (That's glue.)

There's no way a .com nameserver should be providing A records for hosts in 
the .au zone.

> nonetheless it works, though only after a hunt down through the .au
> servers, until cached.

Yes, this is exactly what /should/ happen. Only the .au servers (or servers 
they delegate to) are authoritative for hosts in the .au zone.

Jonathan