Re: [dnsext] Fwd: djb on NXDOMAIN/NODATA for non-terminals

Tony Finch <dot@dotat.at> Thu, 31 March 2011 14:25 UTC

Return-Path: <fanf2@hermes.cam.ac.uk>
X-Original-To: dnsext@core3.amsl.com
Delivered-To: dnsext@core3.amsl.com
Received: from localhost (localhost [127.0.0.1]) by core3.amsl.com (Postfix) with ESMTP id 73CCE3A6B33 for <dnsext@core3.amsl.com>; Thu, 31 Mar 2011 07:25:44 -0700 (PDT)
X-Virus-Scanned: amavisd-new at amsl.com
X-Spam-Flag: NO
X-Spam-Score: -6.372
X-Spam-Level:
X-Spam-Status: No, score=-6.372 tagged_above=-999 required=5 tests=[AWL=-0.073, BAYES_00=-2.599, MIME_8BIT_HEADER=0.3, RCVD_IN_DNSWL_MED=-4]
Received: from mail.ietf.org ([64.170.98.32]) by localhost (core3.amsl.com [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id Mz8qlvpYCQ+C for <dnsext@core3.amsl.com>; Thu, 31 Mar 2011 07:25:43 -0700 (PDT)
Received: from ppsw-51.csi.cam.ac.uk (ppsw-51.csi.cam.ac.uk [131.111.8.151]) by core3.amsl.com (Postfix) with ESMTP id 591EA3A6A92 for <dnsext@ietf.org>; Thu, 31 Mar 2011 07:25:43 -0700 (PDT)
X-Cam-AntiVirus: no malware found
X-Cam-SpamDetails: not scanned
X-Cam-ScannerInfo: http://www.cam.ac.uk/cs/email/scanner/
Received: from hermes-1.csi.cam.ac.uk ([131.111.8.51]:40205) by ppsw-51.csi.cam.ac.uk (smtp.hermes.cam.ac.uk [131.111.8.158]:25) with esmtpa (EXTERNAL:fanf2) id 1Q5IqH-0001QK-Xx (Exim 4.72) (return-path <fanf2@hermes.cam.ac.uk>); Thu, 31 Mar 2011 15:27:21 +0100
Received: from fanf2 (helo=localhost) by hermes-1.csi.cam.ac.uk (hermes.cam.ac.uk) with local-esmtp id 1Q5IqH-0004oi-Gd (Exim 4.67) (return-path <fanf2@hermes.cam.ac.uk>); Thu, 31 Mar 2011 15:27:21 +0100
Date: Thu, 31 Mar 2011 15:27:21 +0100
From: Tony Finch <dot@dotat.at>
X-X-Sender: fanf2@hermes-1.csi.cam.ac.uk
To: =?ISO-8859-15?Q?Colm_MacC=E1rthaigh?= <colm@allcosts.net>
In-Reply-To: <AANLkTinurOKv61WOdwu4XtFHkzp2FzX5b2kFwazqRPHE@mail.gmail.com>
Message-ID: <alpine.LSU.2.00.1103311525350.5244@hermes-1.csi.cam.ac.uk>
References: <AANLkTimCZVyag8+Pv8zJsah2B-C=h3bPJ=DNVVo3agLc@mail.gmail.com> <34319.1301351478@nsa.vix.com> <BANLkTikkx4ndK3TpByptuRdtPGuFztm2yA@mail.gmail.com> <65033.1301383238@nsa.vix.com> <82ei5qz3bi.fsf@mid.bfk.de> <84978.1301403827@nsa.vix.com> <82fwq6vsvk.fsf@mid.bfk.de> <94669.1301414190@nsa.vix.com> <a06240806c9b7b2040e80@10.31.200.119> <95465.1301414968@nsa.vix.com> <a06240807c9b7b5a6e892@10.31.200.119> <82vcz0n7a4.fsf@mid.bfk.de> <a06240800c9b93e602208@10.31.200.115> <1330.1301525305@nsa.vix.com> <AANLkTinurOKv61WOdwu4XtFHkzp2FzX5b2kFwazqRPHE@mail.gmail.com>
User-Agent: Alpine 2.00 (LSU 1167 2008-08-23)
MIME-Version: 1.0
Content-Type: MULTIPART/MIXED; BOUNDARY="1870869256-1336274178-1301581641=:5244"
Sender: Tony Finch <fanf2@hermes.cam.ac.uk>
Cc: dnsext@ietf.org
Subject: Re: [dnsext] Fwd: djb on NXDOMAIN/NODATA for non-terminals
X-BeenThere: dnsext@ietf.org
X-Mailman-Version: 2.1.9
Precedence: list
List-Id: DNS Extensions working group discussion list <dnsext.ietf.org>
List-Unsubscribe: <https://www.ietf.org/mailman/listinfo/dnsext>, <mailto:dnsext-request@ietf.org?subject=unsubscribe>
List-Archive: <http://www.ietf.org/mail-archive/web/dnsext>
List-Post: <mailto:dnsext@ietf.org>
List-Help: <mailto:dnsext-request@ietf.org?subject=help>
List-Subscribe: <https://www.ietf.org/mailman/listinfo/dnsext>, <mailto:dnsext-request@ietf.org?subject=subscribe>
X-List-Received-Date: Thu, 31 Mar 2011 14:25:44 -0000

Colm MacCárthaigh <colm@allcosts.net> wrote:
>
> My vote would be for;
>
>   Recommending that authoritative servers implementing DNSSEC SHOULD
> NOT return NXDOMAIN for non-terminal labels.

I believe that requirement already exists as a MUST NOT.

Tony.
-- 
f.anthony.n.finch  <dot@dotat.at>  http://dotat.at/
Forth, Tyne, Dogger: West or southwest 7 to severe gale 9 backing south or
southwest 4 or 5, increasing 6 or 7 later. Moderate or rough. Rain or showers.
Good, occasionally poor.