Re: [DNSOP] Further ANAME minimization /\ Ray convergence

Tony Finch <dot@dotat.at> Tue, 06 November 2018 19:45 UTC

Return-Path: <dot@dotat.at>
X-Original-To: dnsop@ietfa.amsl.com
Delivered-To: dnsop@ietfa.amsl.com
Received: from localhost (localhost [127.0.0.1]) by ietfa.amsl.com (Postfix) with ESMTP id D4EA0130DFA for <dnsop@ietfa.amsl.com>; Tue, 6 Nov 2018 11:45:33 -0800 (PST)
X-Virus-Scanned: amavisd-new at amsl.com
X-Spam-Flag: NO
X-Spam-Score: -4.199
X-Spam-Level:
X-Spam-Status: No, score=-4.199 tagged_above=-999 required=5 tests=[BAYES_00=-1.9, RCVD_IN_DNSWL_MED=-2.3, URIBL_BLOCKED=0.001] autolearn=ham autolearn_force=no
Received: from mail.ietf.org ([4.31.198.44]) by localhost (ietfa.amsl.com [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id 37V36eyMfNeh for <dnsop@ietfa.amsl.com>; Tue, 6 Nov 2018 11:45:32 -0800 (PST)
Received: from ppsw-33.csi.cam.ac.uk (ppsw-33.csi.cam.ac.uk [131.111.8.133]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by ietfa.amsl.com (Postfix) with ESMTPS id 1605F130DC2 for <dnsop@ietf.org>; Tue, 6 Nov 2018 11:45:31 -0800 (PST)
X-Cam-AntiVirus: no malware found
X-Cam-ScannerInfo: http://help.uis.cam.ac.uk/email-scanner-virus
Received: from grey.csi.cam.ac.uk ([131.111.57.57]:57882) by ppsw-33.csi.cam.ac.uk (ppsw.cam.ac.uk [131.111.8.139]:25) with esmtps (TLSv1.2:ECDHE-RSA-AES256-GCM-SHA384:256) id 1gK7I2-000QJ5-g4 (Exim 4.91) (return-path <dot@dotat.at>); Tue, 06 Nov 2018 19:45:30 +0000
Date: Tue, 06 Nov 2018 19:45:30 +0000
From: Tony Finch <dot@dotat.at>
To: Ray Bellis <ray@bellis.me.uk>
cc: dnsop@ietf.org
In-Reply-To: <793c448e-8eaf-a227-0875-7562a52e8a6e@bellis.me.uk>
Message-ID: <alpine.DEB.2.20.1811061940390.4343@grey.csi.cam.ac.uk>
References: <CAH1iCirXYsYB3sAo8f1Jy-q4meLmQAPSFO-7x5idDufdT_unXQ@mail.gmail.com> <CA+nkc8C6yVT62cW5QP-ec2ZT7FY_n48Ecr=CLeE6FS_1duBO8g@mail.gmail.com> <bccfabab-6fab-867e-7c12-8ced9f0d11b6@oracle.com> <alpine.DEB.2.20.1811061537410.24450@grey.csi.cam.ac.uk> <793c448e-8eaf-a227-0875-7562a52e8a6e@bellis.me.uk>
User-Agent: Alpine 2.20 (DEB 67 2015-01-07)
MIME-Version: 1.0
Content-Type: text/plain; charset="US-ASCII"
Archived-At: <https://mailarchive.ietf.org/arch/msg/dnsop/oxrMDU5tET79P4K3vUSt80r7Mug>
Subject: Re: [DNSOP] Further ANAME minimization /\ Ray convergence
X-BeenThere: dnsop@ietf.org
X-Mailman-Version: 2.1.29
Precedence: list
List-Id: IETF DNSOP WG mailing list <dnsop.ietf.org>
List-Unsubscribe: <https://www.ietf.org/mailman/options/dnsop>, <mailto:dnsop-request@ietf.org?subject=unsubscribe>
List-Archive: <https://mailarchive.ietf.org/arch/browse/dnsop/>
List-Post: <mailto:dnsop@ietf.org>
List-Help: <mailto:dnsop-request@ietf.org?subject=help>
List-Subscribe: <https://www.ietf.org/mailman/listinfo/dnsop>, <mailto:dnsop-request@ietf.org?subject=subscribe>
X-List-Received-Date: Tue, 06 Nov 2018 19:45:34 -0000

Ray Bellis <ray@bellis.me.uk> wrote:
> On 07/11/2018 00:28, Tony Finch wrote:
>
> >    * General purpose (also works for ssh, databases, etc) vs HTTP-specific
>
> I just wanted to address this particular point, again.
>
> IMHO, any record that doesn't support a service selector isn't doing its job
> properly.

Yes.

My point above is to do with what existing ANAME-like things expect client
software to do, i.e. connecting to hosts rather than services. It isn't a
judgment about what's good, but an observation about what is done. And it
raises questions about trade-offs between compatibiliy with the installed
base or improving things for the future. I don't have the answers :-)

Tony.
-- 
f.anthony.n.finch  <dot@dotat.at>  http://dotat.at/
a fair voting system for all elections