Re: [DNSOP] Terminology question: split DNS
John Heidemann <johnh@isi.edu> Mon, 19 March 2018 20:56 UTC
Return-Path: <johnh@isi.edu>
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 602021270A0 for <dnsop@ietfa.amsl.com>; Mon, 19 Mar 2018 13:56:39 -0700 (PDT)
X-Virus-Scanned: amavisd-new at amsl.com
X-Spam-Flag: NO
X-Spam-Score: -4.209
X-Spam-Level:
X-Spam-Status: No, score=-4.209 tagged_above=-999 required=5 tests=[BAYES_00=-1.9, RCVD_IN_DNSWL_MED=-2.3, T_RP_MATCHES_RCVD=-0.01, 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 7me11_mhbS5P for <dnsop@ietfa.amsl.com>; Mon, 19 Mar 2018 13:56:37 -0700 (PDT)
Received: from mail-c.ads.isi.edu (mail-c.ads.isi.edu [128.9.180.198]) (using TLSv1.2 with cipher RC4-SHA (128/128 bits)) (No client certificate requested) by ietfa.amsl.com (Postfix) with ESMTPS id 97028127058 for <dnsop@ietf.org>; Mon, 19 Mar 2018 13:56:37 -0700 (PDT)
IronPort-PHdr: 9a23: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
X-IronPort-Anti-Spam-Filtered: true
X-IronPort-Anti-Spam-Result: A2ElAQBWI7Ba/1ugCYBdGQEBAQEBAQEBAQEBAQcBAQEBAYJ8gTpyKI5rjw2BFpVQQgEthG0Cg2E4FAECAQEBAQEBAgECaBwMgjgkAQoESywvAQEBAQEBAQEBAQEBAQEBGgI6MQEFOj8QCxgJHgcPNxEGE4UYAQQKq1yHcAEHYoIJBYUzg2qEdIMeAgOHTAONJosQCYYHiSqNLYkwiC81IoFSTSUTgn2LLIVfVJBXAQEB
X-IPAS-Result: A2ElAQBWI7Ba/1ugCYBdGQEBAQEBAQEBAQEBAQcBAQEBAYJ8gTpyKI5rjw2BFpVQQgEthG0Cg2E4FAECAQEBAQEBAgECaBwMgjgkAQoESywvAQEBAQEBAQEBAQEBAQEBGgI6MQEFOj8QCxgJHgcPNxEGE4UYAQQKq1yHcAEHYoIJBYUzg2qEdIMeAgOHTAONJosQCYYHiSqNLYkwiC81IoFSTSUTgn2LLIVfVJBXAQEB
X-IronPort-AV: E=Sophos;i="5.48,332,1517904000"; d="scan'208";a="4135683"
Received: from vir.isi.edu (HELO dash.isi.edu) ([128.9.160.91]) by mail-c.ads.isi.edu with ESMTP; 19 Mar 2018 13:56:37 -0700
Received: from dash.isi.edu (localhost6.localdomain6 [IPv6:::1]) by dash.isi.edu (Postfix) with ESMTP id A41303000CD; Mon, 19 Mar 2018 13:56:36 -0700 (PDT)
From: John Heidemann <johnh@isi.edu>
To: dnsop <dnsop@ietf.org>
cc: Ted Lemon <mellon@fugue.com>, Paul Vixie <paul@redbarn.org>, Paul Hoffman <paul.hoffman@vpnc.org>, George Michaelson <ggm@algebras.org>
In-reply-to: <5AB00268.4040902@redbarn.org>
References: <3D490CA8-0733-47AD-A088-113B1116B207@vpnc.org> <CAKr6gn0RrJEzLCg-nzmwpY7R4XUtRXudQZWdgpz2Vt3X1+BL4Q@mail.gmail.com> <D2E84EBB-9AE5-469B-B8A5-37DBD9CD8D44@fugue.com> <5AB00268.4040902@redbarn.org>
X-url: http://www.isi.edu/~johnh/
MIME-Version: 1.0 (generated by SEMI 1.14.7 - "Harue")
Content-Type: text/plain; charset="US-ASCII"
Date: Mon, 19 Mar 2018 13:56:36 -0700
Message-ID: <9098.1521492996@dash.isi.edu>
Archived-At: <https://mailarchive.ietf.org/arch/msg/dnsop/7nXMUJil-800Sw0rXvNLMrM0qNU>
Subject: Re: [DNSOP] Terminology question: split DNS
X-BeenThere: dnsop@ietf.org
X-Mailman-Version: 2.1.22
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: Mon, 19 Mar 2018 20:56:39 -0000
On Mon, 19 Mar 2018 11:33:12 -0700, Paul Vixie wrote: > > >Ted Lemon wrote: >> On Mar 19, 2018, at 6:10 PM, George Michaelson <ggm@algebras.org >> <mailto:ggm@algebras.org>> wrote: >>> "A DNS resolver which looks at the client requesting address, and uses >> >> That's a different thing. There's a distinction between a resolver that >> gives different answers, and a set of authoritative servers that give >> different answers. I believe split horizon is referring to the latter, >> not the former. > >i've done both and referred to both as "split-horizon dns". > >bind9 views does both. +1 on "split-horizon dns" as the term, over "split dns" and some other neologism, on the basis of running code and existing documentation and existing wide use. As another demonstration of wide use of this term, see https://en.wikipedia.org/wiki/Split-horizon_DNS It is not, to me, too great an overlap with split-horizon routing. -John Heidemann
- [DNSOP] Terminology question: split DNS Paul Hoffman
- Re: [DNSOP] Terminology question: split DNS Paul Vixie
- Re: [DNSOP] Terminology question: split DNS Ted Lemon
- Re: [DNSOP] Terminology question: split DNS Jim Reid
- Re: [DNSOP] Terminology question: split DNS Artyom Gavrichenkov
- Re: [DNSOP] Terminology question: split DNS Bob Harold
- Re: [DNSOP] Terminology question: split DNS Artyom Gavrichenkov
- Re: [DNSOP] Terminology question: split DNS George Michaelson
- Re: [DNSOP] Terminology question: split DNS Artyom Gavrichenkov
- Re: [DNSOP] Terminology question: split DNS Paul Vixie
- Re: [DNSOP] Terminology question: split DNS Jim Reid
- Re: [DNSOP] Terminology question: split DNS Ted Lemon
- Re: [DNSOP] Terminology question: split DNS Robert Edmonds
- Re: [DNSOP] Terminology question: split DNS Paul Vixie
- Re: [DNSOP] Terminology question: split DNS George Michaelson
- Re: [DNSOP] Terminology question: split DNS Darcy Kevin (FCA)
- Re: [DNSOP] Terminology question: split DNS John Kristoff
- Re: [DNSOP] Terminology question: split DNS John Heidemann
- Re: [DNSOP] Terminology question: split DNS Paul Wouters
- Re: [DNSOP] Terminology question: split DNS Michael Sinatra
- Re: [DNSOP] Terminology question: split DNS Steve Crocker
- Re: [DNSOP] Terminology question: split DNS Paul Vixie
- Re: [DNSOP] Terminology question: split DNS Dick Franks
- Re: [DNSOP] Terminology question: split DNS Evan Hunt
- Re: [DNSOP] Terminology question: split DNS Ted Lemon
- Re: [DNSOP] Terminology question: split DNS Andrew Sullivan
- Re: [DNSOP] Terminology question: split DNS Ted Lemon
- Re: [DNSOP] Terminology question: split DNS Matt Larson
- Re: [DNSOP] Terminology question: split DNS Ted Lemon
- Re: [DNSOP] Terminology question: split DNS Darcy Kevin (FCA)
- Re: [DNSOP] Terminology question: split DNS Matthew Pounsett
- Re: [DNSOP] Terminology question: split DNS Matthew Pounsett
- Re: [DNSOP] Terminology question: split DNS Artyom Gavrichenkov