Re: [Doh] [DNSOP] [Ext] Re: Alternate proposal for transport indication in draft-ietf-dnsop-dns-wireformat-http

Paul Vixie <paul@redbarn.org> Wed, 04 April 2018 18:58 UTC

Return-Path: <paul@redbarn.org>
X-Original-To: doh@ietfa.amsl.com
Delivered-To: doh@ietfa.amsl.com
Received: from localhost (localhost [127.0.0.1]) by ietfa.amsl.com (Postfix) with ESMTP id 84AC912D775; Wed, 4 Apr 2018 11:58:03 -0700 (PDT)
X-Virus-Scanned: amavisd-new at amsl.com
X-Spam-Flag: NO
X-Spam-Score: -1.911
X-Spam-Level:
X-Spam-Status: No, score=-1.911 tagged_above=-999 required=5 tests=[BAYES_00=-1.9, SPF_PASS=-0.001, T_RP_MATCHES_RCVD=-0.01] 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 tq4pTV0Bnlkk; Wed, 4 Apr 2018 11:58:02 -0700 (PDT)
Received: from family.redbarn.org (family.redbarn.org [IPv6:2001:559:8000:cd::5]) (using TLSv1.2 with cipher AECDH-AES256-SHA (256/256 bits)) (No client certificate requested) by ietfa.amsl.com (Postfix) with ESMTPS id 3489D126D45; Wed, 4 Apr 2018 11:58:02 -0700 (PDT)
Received: from [10.0.5.44] (unknown [38.100.27.170]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits)) (Client did not present a certificate) by family.redbarn.org (Postfix) with ESMTPSA id 928CC7594C; Wed, 4 Apr 2018 18:58:01 +0000 (UTC)
Message-ID: <5AC52029.9000103@redbarn.org>
Date: Wed, 04 Apr 2018 11:57:45 -0700
From: Paul Vixie <paul@redbarn.org>
User-Agent: Postbox 5.0.25 (Windows/20180328)
MIME-Version: 1.0
To: Ted Lemon <mellon@fugue.com>
CC: Ray Bellis <ray@bellis.me.uk>, dnsop@ietf.org, doh@ietf.org
References: <152168039295.5550.9572034766968749020.idtracker@ietfa.amsl.com> <CAAObRXKHhk51DxNt5uiYB0gunJ=DNde2j9FJSU=Ky2m4Q1UkhQ@mail.gmail.com> <CABkgnnVL0XaUDS-WzDGaN9-kLx9p3x1+UVuWhvx=Zyo5oRos+w@mail.gmail.com> <19BED07A-942E-4A46-93A6-09770083EFF9@icann.org> <CABkgnnX-=n-reO9yjA8a2pHAD+JtoS5wX1w-dXMnDFdt4HXu-g@mail.gmail.com> <23236.18671.182273.977633@gro.dd.org> <28199575-e2e2-6966-fe17-f678f9f397f3@bellis.me.uk> <5AC4C2F7.7050906@redbarn.org> <3630b151-9628-235e-a5b1-c838b777d9d2@bellis.me.uk> <5AC4E70C.7020003@redbarn.org> <A0A55AED-0CB2-478C-913A-DCA678FBAC33@fugue.com> <5AC4F11F.3050009@redbarn.org> <602DF02A-3A85-4B3B-9E11-F7A701BD25B5@fugue.com> <5AC4F3F5.6080408@redbarn.org> <C2CAFEF1-7A0B-496E-9AE0-7229E4B4062F@fugue.com> <5AC5006C.4050308@redbarn.org> <5307DF51-689E-41C3-AB4A-59611EAD4DA3@fugue.com> <5AC50A04.6030407@redbarn.org> <7E0DD069-A6C4-473F-B51D-5902C7E96A5C@fugue.com> <5AC51AEC.10603@redbarn.org> <24035AD9-C0C4-4BE4-A58A-0E010FB3D0F6@fugue.com>
In-Reply-To: <24035AD9-C0C4-4BE4-A58A-0E010FB3D0F6@fugue.com>
Content-Type: text/plain; charset="ISO-8859-1"; format="flowed"
Content-Transfer-Encoding: 7bit
Archived-At: <https://mailarchive.ietf.org/arch/msg/doh/Wzzfau_axXJb_SPCc-s5Tj7Gueg>
Subject: Re: [Doh] [DNSOP] [Ext] Re: Alternate proposal for transport indication in draft-ietf-dnsop-dns-wireformat-http
X-BeenThere: doh@ietf.org
X-Mailman-Version: 2.1.22
Precedence: list
List-Id: DNS Over HTTPS <doh.ietf.org>
List-Unsubscribe: <https://www.ietf.org/mailman/options/doh>, <mailto:doh-request@ietf.org?subject=unsubscribe>
List-Archive: <https://mailarchive.ietf.org/arch/browse/doh/>
List-Post: <mailto:doh@ietf.org>
List-Help: <mailto:doh-request@ietf.org?subject=help>
List-Subscribe: <https://www.ietf.org/mailman/listinfo/doh>, <mailto:doh-request@ietf.org?subject=subscribe>
X-List-Received-Date: Wed, 04 Apr 2018 18:58:03 -0000


Ted Lemon wrote:
> On Apr 4, 2018, at 2:35 PM, Paul Vixie <paul@redbarn.org
> <mailto:paul@redbarn.org>> wrote:
>> could this be done with a resolver using non-proxy DOH as a transport
>> to its forwarder? sure. but that puts semantic intelligence in the
>> middle, which will introduce configuration, logging, monitoring,
>> diagnosis, upgrade, and patching costs. i don't want those here.
>
> So essentially this is {UDP | TCP}-over-HTTPS, with constraints on the
> destination port?

no. it uses a DNS response message of rcode SERVFAIL for error 
signalling. so, it is as transparent as possible, and no more.

-- 
P Vixie