Re: [DNSOP] Root reasons (aka "why") - HTTP vs SRV vs ANAME vs CNAME

Matthijs Mekking <matthijs@pletterpet.nl> Fri, 09 November 2018 09:50 UTC

Return-Path: <matthijs@pletterpet.nl>
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 38EE81292AD for <dnsop@ietfa.amsl.com>; Fri, 9 Nov 2018 01:50:12 -0800 (PST)
X-Virus-Scanned: amavisd-new at amsl.com
X-Spam-Flag: NO
X-Spam-Score: -2.6
X-Spam-Level:
X-Spam-Status: No, score=-2.6 tagged_above=-999 required=5 tests=[BAYES_00=-1.9, RCVD_IN_DNSWL_LOW=-0.7] 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 cGHwU3xrNyH0 for <dnsop@ietfa.amsl.com>; Fri, 9 Nov 2018 01:50:09 -0800 (PST)
Received: from lb2-smtp-cloud8.xs4all.net (lb2-smtp-cloud8.xs4all.net [194.109.24.25]) (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 5185612777C for <dnsop@ietf.org>; Fri, 9 Nov 2018 01:50:08 -0800 (PST)
Received: from [IPv6:2001:980:4eb1:1:7d31:179:2099:8c3a] ([IPv6:2001:980:4eb1:1:7d31:179:2099:8c3a]) by smtp-cloud8.xs4all.net with ESMTPSA id L3QRg03GE0ZZEL3QSgVjuv; Fri, 09 Nov 2018 10:50:05 +0100
To: dnsop@ietf.org
References: <CAH1iCirLfSEUcTf=p5bHuFJSFie_BoPh4X=89w2mpxgNpR9HkA@mail.gmail.com> <2BDA0411-202D-4199-A43B-3FDC50DC47F5@isoc.org> <CAH1iCirdkU-jYLRGeOm3DcdsReShyOez3oU5hw5sJYEtQyyqGw@mail.gmail.com> <D378E8F5-A667-4649-90ED-7C3612F0A013@isoc.org> <a4087032-acb2-0f2e-f84b-31d2885d8390@bellis.me.uk> <alpine.DEB.2.20.1811081801580.3596@grey.csi.cam.ac.uk> <7702EE25-1B10-4880-804C-C7CF5FE609C8@isc.org> <A7834682-C078-4E7F-985E-8FBBF387AC66@dotat.at> <57fff590-9e0f-0510-9c8a-bc0abab471b6@bellis.me.uk>
From: Matthijs Mekking <matthijs@pletterpet.nl>
Message-ID: <d39dbb2a-7898-4ce7-f6b5-e47dda6766af@pletterpet.nl>
Date: Fri, 9 Nov 2018 10:50:03 +0100
User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:60.0) Gecko/20100101 Thunderbird/60.2.1
MIME-Version: 1.0
In-Reply-To: <57fff590-9e0f-0510-9c8a-bc0abab471b6@bellis.me.uk>
Content-Type: text/plain; charset=utf-8; format=flowed
Content-Language: en-US
Content-Transfer-Encoding: 8bit
X-CMAE-Envelope: MS4wfBwvoxwIg+614fVV5aeXZ3IKzzlScDcqtBHKHu73k5R/PIETQD/GPTJ/XKyA2qyHg+4CcVCsuzbzIDbrnZmdmVDi6YnSmE+wY7yHmGudkxdZa2qiC3Qv f7Cqm616uMmfou7qs1BuoL5NsDd4uWib1tT1Uj7k837jmZ8FEUG+7Xn+Kl4MePeL4bUs1VJlzdOCvg1X5qfXmhvHXgxMECUp918bvNyu5TpCBWrn+ZYLolYa FMpoV8cEWStaTkJKBBbaK2xUgTdFhz3OCiF+iP0SdFc=
Archived-At: <https://mailarchive.ietf.org/arch/msg/dnsop/aXS_Ou_TSbSlzWodtX6GY3nZpWA>
Subject: Re: [DNSOP] Root reasons (aka "why") - HTTP vs SRV vs ANAME vs CNAME
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: Fri, 09 Nov 2018 09:50:12 -0000


On 11/9/18 1:57 AM, Ray Bellis wrote:
> 
> 
> On 09/11/2018 07:14, Tony Finch wrote:
>> But remember: the goal is to make the DNS easier to use for people
>> who don’t know about the restrictions on CNAMEs.
> 
> I'd say the goal is to make the DNS *possible* to use for people who
> don't know about the restrictions on CNAMEs.
> 
> I concede that ANAME perhaps makes that easier than HTTP does, but it 
> does so at the expense of significant complexity in authority servers by 
> still requiring A and AAAA lookups to be somehow "magic", and doesn't 
> fix the architectural problem of lack of a service identifier.

Note that the latest draft of ANAME does not require the lookup to be in 
the authority servers.

Best regards,

Matthijs



> My long-term goal would be to never have an A or AAAA record appear in 
> the DNS other than at the owner name of an actual hostname.
> 
> Ray
> 
> _______________________________________________
> DNSOP mailing list
> DNSOP@ietf.org
> https://www.ietf.org/mailman/listinfo/dnsop