Re: [DNSOP] abandoning ANAME and standardizing CNAME at apex
Mukund Sivaraman <muks@mukund.org> Wed, 19 September 2018 07:31 UTC
Return-Path: <muks@mukund.org>
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 31695130F91 for <dnsop@ietfa.amsl.com>; Wed, 19 Sep 2018 00:31:55 -0700 (PDT)
X-Virus-Scanned: amavisd-new at amsl.com
X-Spam-Flag: NO
X-Spam-Score: -1.9
X-Spam-Level:
X-Spam-Status: No, score=-1.9 tagged_above=-999 required=5 tests=[BAYES_00=-1.9, SPF_PASS=-0.001, 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 3fQtD_sgil_J for <dnsop@ietfa.amsl.com>; Wed, 19 Sep 2018 00:31:52 -0700 (PDT)
Received: from mail.banu.com (mail.banu.com [IPv6:2a01:4f8:140:644b::225]) by ietfa.amsl.com (Postfix) with ESMTP id 8B480126BED for <dnsop@ietf.org>; Wed, 19 Sep 2018 00:31:52 -0700 (PDT)
Received: from jurassic (unknown [27.5.216.165]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits)) (No client certificate requested) by mail.banu.com (Postfix) with ESMTPSA id BA49932C08E7; Wed, 19 Sep 2018 07:31:50 +0000 (UTC)
Date: Wed, 19 Sep 2018 13:01:47 +0530
From: Mukund Sivaraman <muks@mukund.org>
To: Petr Špaček <petr.spacek@nic.cz>
Cc: dnsop@ietf.org
Message-ID: <20180919073147.GA13027@jurassic>
References: <201809182002.w8IK2hCr011294@atl4mhob04.registeredsite.com> <b412d84f-df37-e416-63f7-2424ab1f68cb@nic.cz>
MIME-Version: 1.0
Content-Type: text/plain; charset="utf-8"
Content-Disposition: inline
Content-Transfer-Encoding: 8bit
In-Reply-To: <b412d84f-df37-e416-63f7-2424ab1f68cb@nic.cz>
User-Agent: Mutt/1.9.2 (2017-12-15)
Archived-At: <https://mailarchive.ietf.org/arch/msg/dnsop/rSZ8wMHiGSplpFBR5ZZzbWALuck>
Subject: Re: [DNSOP] abandoning ANAME and standardizing CNAME at apex
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: Wed, 19 Sep 2018 07:31:55 -0000
On Wed, Sep 19, 2018 at 09:05:21AM +0200, Petr Špaček wrote: > On 18/09/2018 22:02, JW wrote: > > > > -------- Original message -------- > > From: Mark Andrews <marka@isc.org> > > > >> I would also expect a relatively large client population using SRV records > >> given the rate Firefox and Chrome browsers are upgraded. SRV lookups > >> work for lots ofother protocols. SRV records also make it through > >> firewalls and IDS today. > >> > > > > Hi Mark, > > > > I agree SRV is the obvious choice for a greenfield protocol but there is > > HTTP code sprinkled /everywhere/. I can't imagine all those forgotten > > scripts, lonely IOT devices, and troubleshooting guides are going to be > > as easy to solve as updating chrome and firefox. > > > > Whatever the solution, I feel it should be as transparent to the client > > as possible. CNAME would fit this bill but the negative impact is > > largely unknown. > > TL;DR: Experiments with CNAME @ apex showed that it is not going to work > if the domain has e.g. MX records for e-mail. > > Ondrej Sury describes his experimental results in presentation here: > https://github.com/IETF-Hackathon/ietf102-project-presentations/blob/master/dns_hackathon-presentation.pdf Aren't these results with current state of implementations? A cached CNAME is expected to be matched against future type queries when following RFC 1034/1035 behavior. A change in behavior where resolvers expect that CNAME (as a fallback type) will co-exist with other types will work properly. Mukund
- Re: [DNSOP] abandoning ANAME and standardizing CN… Evan Hunt
- Re: [DNSOP] abandoning ANAME and standardizing CN… Joe Abley
- Re: [DNSOP] faux BNAME, was abandoning ANAME and … John Levine
- Re: [DNSOP] abandoning ANAME and standardizing CN… Tony Finch
- Re: [DNSOP] abandoning ANAME and standardizing CN… John Levine
- Re: [DNSOP] abandoning ANAME and standardizing CN… Paul Vixie
- Re: [DNSOP] abandoning ANAME and standardizing CN… Mark Andrews
- Re: [DNSOP] abandoning ANAME and standardizing CN… Ray Bellis
- Re: [DNSOP] abandoning ANAME and standardizing CN… Jan Včelák
- Re: [DNSOP] abandoning ANAME and standardizing CN… Mark Andrews
- Re: [DNSOP] abandoning ANAME and standardizing CN… Paul Ebersman
- Re: [DNSOP] abandoning ANAME and standardizing CN… Mark Andrews
- Re: [DNSOP] abandoning ANAME and standardizing CN… Mark Andrews
- Re: [DNSOP] abandoning ANAME and standardizing CN… Paul Vixie
- Re: [DNSOP] abandoning ANAME and standardizing CN… David Conrad
- Re: [DNSOP] abandoning ANAME and standardizing CN… Paul Vixie
- Re: [DNSOP] abandoning ANAME and standardizing CN… Tony Finch
- Re: [DNSOP] abandoning ANAME and standardizing CN… Tony Finch
- Re: [DNSOP] abandoning ANAME and standardizing CN… Ray Bellis
- Re: [DNSOP] abandoning ANAME and standardizing CN… Ondřej Surý
- Re: [DNSOP] abandoning ANAME and standardizing CN… Paul Wouters
- Re: [DNSOP] abandoning ANAME and standardizing CN… Matthew Pounsett
- Re: [DNSOP] abandoning ANAME and standardizing CN… Joe Abley
- Re: [DNSOP] abandoning ANAME and standardizing CN… John Levine
- Re: [DNSOP] abandoning ANAME and standardizing CN… Tony Finch
- Re: [DNSOP] abandoning ANAME and standardizing CN… Paul Vixie
- Re: [DNSOP] abandoning ANAME and standardizing CN… Colm MacCárthaigh
- Re: [DNSOP] abandoning ANAME and standardizing CN… Tony Finch
- Re: [DNSOP] abandoning ANAME and standardizing CN… Tony Finch
- Re: [DNSOP] abandoning ANAME and standardizing CN… Anthony Eden
- Re: [DNSOP] abandoning ANAME and standardizing CN… Erik Nygren
- Re: [DNSOP] abandoning ANAME and standardizing CN… Ray Bellis
- Re: [DNSOP] abandoning ANAME and standardizing CN… Jared Mauch
- Re: [DNSOP] abandoning ANAME and standardizing CN… Paul Wouters
- Re: [DNSOP] abandoning ANAME and standardizing CN… Ray Bellis
- Re: [DNSOP] abandoning ANAME and standardizing CN… Tony Finch
- Re: [DNSOP] abandoning ANAME and standardizing CN… Joe Abley
- Re: [DNSOP] abandoning ANAME and standardizing CN… Lanlan Pan
- Re: [DNSOP] abandoning ANAME and standardizing CN… tjw ietf
- Re: [DNSOP] abandoning ANAME and standardizing CN… Colm MacCárthaigh
- Re: [DNSOP] abandoning ANAME and standardizing CN… Tony Finch
- [DNSOP] abandoning ANAME and standardizing CNAME … Petr Špaček
- Re: [DNSOP] abandoning ANAME and standardizing CN… Tony Finch
- Re: [DNSOP] abandoning ANAME and standardizing CN… Tony Finch
- Re: [DNSOP] abandoning ANAME and standardizing CN… Ray Bellis
- Re: [DNSOP] abandoning ANAME and standardizing CN… Viktor Dukhovni
- Re: [DNSOP] abandoning ANAME and standardizing CN… Evan Hunt
- Re: [DNSOP] abandoning ANAME and standardizing CN… Joe Abley
- Re: [DNSOP] abandoning ANAME and standardizing CN… Paul Vixie
- Re: [DNSOP] abandoning ANAME and standardizing CN… Shumon Huque
- Re: [DNSOP] abandoning ANAME and standardizing CN… Paul Vixie
- Re: [DNSOP] abandoning ANAME and standardizing CN… Joe Abley
- Re: [DNSOP] abandoning ANAME and standardizing CN… Viktor Dukhovni
- Re: [DNSOP] abandoning ANAME and standardizing CN… Evan Hunt
- Re: [DNSOP] abandoning ANAME and standardizing CN… Paul Vixie
- Re: [DNSOP] abandoning ANAME and standardizing CN… Mark Andrews
- Re: [DNSOP] abandoning ANAME and standardizing CN… 神明達哉
- Re: [DNSOP] abandoning ANAME and standardizing CN… Tony Finch
- Re: [DNSOP] abandoning ANAME and standardizing CN… Paul Vixie
- Re: [DNSOP] abandoning ANAME and standardizing CN… Shumon Huque
- Re: [DNSOP] abandoning ANAME and standardizing CN… Warren Kumari
- Re: [DNSOP] abandoning ANAME and standardizing CN… John R Levine
- Re: [DNSOP] abandoning ANAME and standardizing CN… Evan Hunt
- Re: [DNSOP] abandoning ANAME and standardizing CN… Lanlan Pan
- Re: [DNSOP] abandoning ANAME and standardizing CN… Evan Hunt
- Re: [DNSOP] abandoning ANAME and standardizing CN… John R Levine
- Re: [DNSOP] abandoning ANAME and standardizing CN… Evan Hunt
- Re: [DNSOP] abandoning ANAME and standardizing CN… Warren Kumari
- Re: [DNSOP] abandoning ANAME and standardizing CN… Mukund Sivaraman
- Re: [DNSOP] Creating a query/record for A and AAAA Paul Vixie
- Re: [DNSOP] Creating a query/record for A and AAAA Michael Sheldon
- Re: [DNSOP] Creating a query/record for A and AAAA Paul Vixie
- [DNSOP] Creating a query/record for A and AAAA Michael Sheldon
- Re: [DNSOP] Creating a query/record for A and AAAA Paul Wouters
- Re: [DNSOP] Creating a query/record for A and AAAA Mark Andrews
- Re: [DNSOP] Creating a query/record for A and AAAA Tony Finch
- Re: [DNSOP] Creating a query/record for A and AAAA Ondřej Surý
- Re: [DNSOP] Creating a query/record for A and AAAA Jared Mauch
- Re: [DNSOP] Creating a query/record for A and AAAA Paul Wouters
- Re: [DNSOP] Creating a query/record for A and AAAA Ray Bellis
- Re: [DNSOP] Creating a query/record for A and AAAA Ray Bellis
- Re: [DNSOP] Creating a query/record for A and AAAA Paul Vixie
- Re: [DNSOP] abandoning ANAME and standardizing CN… Tim Wicinski
- Re: [DNSOP] abandoning ANAME and standardizing CN… Brian Dickson
- Re: [DNSOP] abandoning ANAME and standardizing CN… Tony Finch
- Re: [DNSOP] abandoning ANAME and standardizing CN… Paul Hoffman
- Re: [DNSOP] abandoning ANAME and standardizing CN… Paul Vixie
- Re: [DNSOP] abandoning ANAME and standardizing CN… Matthijs Mekking
- Re: [DNSOP] abandoning ANAME and standardizing CN… Mukund Sivaraman
- Re: [DNSOP] abandoning ANAME and standardizing CN… Paul Vixie
- Re: [DNSOP] abandoning ANAME and standardizing CN… Dan York
- Re: [DNSOP] abandoning ANAME and standardizing CN… Evan Hunt
- Re: [DNSOP] abandoning ANAME and standardizing CN… Stephane Bortzmeyer
- Re: [DNSOP] abandoning ANAME and standardizing CN… Stephane Bortzmeyer
- Re: [DNSOP] abandoning ANAME and standardizing CN… Ray Bellis
- Re: [DNSOP] abandoning ANAME and standardizing CN… Mukund Sivaraman
- Re: [DNSOP] abandoning ANAME and standardizing CN… Ray Bellis
- Re: [DNSOP] abandoning ANAME and standardizing CN… Mukund Sivaraman
- Re: [DNSOP] abandoning ANAME and standardizing CN… Petr Špaček
- Re: [DNSOP] abandoning ANAME and standardizing CN… Mukund Sivaraman
- Re: [DNSOP] abandoning ANAME and standardizing CN… Evan Hunt
- Re: [DNSOP] abandoning ANAME and standardizing CN… Mukund Sivaraman
- Re: [DNSOP] abandoning ANAME and standardizing CN… Mark Andrews
- Re: [DNSOP] abandoning ANAME and standardizing CN… JW
- Re: [DNSOP] abandoning ANAME and standardizing CN… Mark Andrews
- Re: [DNSOP] abandoning ANAME and standardizing CN… Petr Špaček
- Re: [DNSOP] abandoning ANAME and standardizing CN… Stephane Bortzmeyer
- Re: [DNSOP] abandoning ANAME and standardizing CN… Mukund Sivaraman
- Re: [DNSOP] abandoning ANAME and standardizing CN… Mark Andrews
- Re: [DNSOP] abandoning ANAME and standardizing CN… Petr Špaček
- Re: [DNSOP] abandoning ANAME and standardizing CN… Mukund Sivaraman