Re: [DNSOP] KSK-Sentinel -- "Walkin' on the SUN"?

Ted Lemon <mellon@fugue.com> Tue, 15 May 2018 16:18 UTC

Return-Path: <mellon@fugue.com>
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 0FD5012421A for <dnsop@ietfa.amsl.com>; Tue, 15 May 2018 09:18:55 -0700 (PDT)
X-Virus-Scanned: amavisd-new at amsl.com
X-Spam-Flag: NO
X-Spam-Score: -2.609
X-Spam-Level:
X-Spam-Status: No, score=-2.609 tagged_above=-999 required=5 tests=[BAYES_00=-1.9, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, HTML_MESSAGE=0.001, RCVD_IN_DNSWL_LOW=-0.7, SPF_PASS=-0.001, T_DKIMWL_WL_MED=-0.01, URIBL_BLOCKED=0.001] autolearn=ham autolearn_force=no
Authentication-Results: ietfa.amsl.com (amavisd-new); dkim=pass (2048-bit key) header.d=fugue-com.20150623.gappssmtp.com
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 7yHD1eldL0Kq for <dnsop@ietfa.amsl.com>; Tue, 15 May 2018 09:18:53 -0700 (PDT)
Received: from mail-it0-x22e.google.com (mail-it0-x22e.google.com [IPv6:2607:f8b0:4001:c0b::22e]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits)) (No client certificate requested) by ietfa.amsl.com (Postfix) with ESMTPS id DD2E212D77D for <dnsop@ietf.org>; Tue, 15 May 2018 09:18:52 -0700 (PDT)
Received: by mail-it0-x22e.google.com with SMTP id n64-v6so2914507itb.3 for <dnsop@ietf.org>; Tue, 15 May 2018 09:18:52 -0700 (PDT)
DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=fugue-com.20150623.gappssmtp.com; s=20150623; h=mime-version:in-reply-to:references:from:date:message-id:subject:to :cc; bh=cRFZejesjS2nEVb6RNZY5p3D4dv9+RlWf/i90yAt+yE=; b=mQl9mFmNB596yheR/6TNLJB/TOA0th92UmbnICZZrHD/Emq+DgwUFI2BxRKc57MDgI u8QV/tYtRj2UmMVeg4+82k7Yf3T9l5FEba2wWzNZcz3IMHIAIRtBEIyTzY2FXqnwhwwN dS134hjCyxWbf+1TCmEU5TzmmpA6vetJhLurznszrS1N+kJ/UBoK++UoMNZ6fnP5PXec 2EA5in84u5z118j7uilJH8IeXVZajFJ69CJoP4x1M0cvZb1uSp2kfbi53sUUH/ZDSqcw wBm+Qm/n61Uhn/TyFH6QLZXZSB11RZCHHvl7kR7jA4WDAgKNTSRjUQNocJF0ADGr6aNr 5/ng==
X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:mime-version:in-reply-to:references:from:date :message-id:subject:to:cc; bh=cRFZejesjS2nEVb6RNZY5p3D4dv9+RlWf/i90yAt+yE=; b=T0S4lhpipDZJ1+J5muviyGmy8iQ+jvBo0XPN6m4d5Br8TVWoKwlYJiweisf/5OY3/n 3fvrVP/+qTqMW3cozclJ0ge4zG0QSEKi1TLw93hM7sCJninL5XDRmKE+3Civb6a2UhS2 1IG1LtGOSf70asOcjvwHCWg1RUc2/p5B/kQvZfElnresM0N49EzXBafwovjOQx6+O0fC juA2kewwyv9lZ5k3H6+ObkSnAIbzUvvykcl5DjHotmp6+H7mZGAzyM4AnFSbgC7UpARu kXWtT4y+/bF8hQ7RpVTLSbLrgYfnvoN/x655DM2di7eDC8NOiRY5/iP/bewQX2xgFIWR 63ow==
X-Gm-Message-State: ALKqPwclX8XxKxOqkrV6eOCjidRvHeVAqWRAac/PuinOEJ1rqn+cUeKL jMnVUnQC4N9/Mqjv78/3saGYwzVXtR/nuH6g86QtiQ==
X-Google-Smtp-Source: AB8JxZopFx9JpguNI2OxxMzE38QoNf+y74pHThMIH2iRZTPUss81t5zYKVftIn4H78AwNzIfcavD+Sl0Y/mXR8B7W+E=
X-Received: by 2002:a6b:3454:: with SMTP id b81-v6mr16060212ioa.115.1526401132295; Tue, 15 May 2018 09:18:52 -0700 (PDT)
MIME-Version: 1.0
Received: by 2002:a4f:8cd8:0:0:0:0:0 with HTTP; Tue, 15 May 2018 09:18:11 -0700 (PDT)
In-Reply-To: <alpine.DEB.2.11.1805151043220.1809@grey.csi.cam.ac.uk>
References: <CAHw9_iKPTT686F8piMGJG=ESnioaunJDTKurabvMA6NucqvBow@mail.gmail.com> <alpine.DEB.2.11.1805151043220.1809@grey.csi.cam.ac.uk>
From: Ted Lemon <mellon@fugue.com>
Date: Tue, 15 May 2018 12:18:11 -0400
Message-ID: <CAPt1N1=ussiww-a_tGJyUxgf7HCGTx-9LCyENSzmjWGP1D=ysQ@mail.gmail.com>
To: Tony Finch <dot@dotat.at>
Cc: Warren Kumari <warren@kumari.net>, dnsop <dnsop@ietf.org>
Content-Type: multipart/alternative; boundary="00000000000046863f056c40f536"
Archived-At: <https://mailarchive.ietf.org/arch/msg/dnsop/x68rcTjI4zwkAtYu9QnluWlqLtM>
Subject: Re: [DNSOP] KSK-Sentinel -- "Walkin' on the SUN"?
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: Tue, 15 May 2018 16:18:55 -0000

It might be useful to compare this to labels like _tcp that appear in SRV
records and elsewhere.   Those are not listed in the SUDN registry.   I
think that this also doesn't make sense to list there.   It's an
interesting question, of course, but I think we have a precedent that
answers is.

On Tue, May 15, 2018 at 5:53 AM, Tony Finch <dot@dotat.at> wrote:

> Warren Kumari <warren@kumari.net> wrote:
> >
> > The authors are in disagreement - RFC6761 talks about "Special-Use Domain
> > *Names*", not "Special-Use Domain *Labels*", but Stuart has said that it
> > wasn't intended to be only for TLDs / pseudo-TLDs / things starting at
> the
> > top of the tree.
>
> Hmm. I think that if RFC 6761 were supposed to cover arbitrary labels then
> it ought to have said something about localhost as a subdomain.
>
> > So, please, *clearly* state if you think that this:
> > A: is a SUN
> > B: is not a SUN
>
> KSK-sentinel feels like a new kind of thing, but I guess it has a lot in
> common with let-localhost-be-localhost. So I think our answer should be
> the same for both of them.
>
> My initial reaction was (B), but after I compared with localhost I think
> (A) is probably the right answer.
>
> Tony.
> --
> f.anthony.n.finch  <dot@dotat.at>  http://dotat.at/
> Humber, Thames, Dover, East Wight: Northerly 5 or 6. Slight or moderate.
> Fog
> patches. Moderate, occasionally very poor.
>
> _______________________________________________
> DNSOP mailing list
> DNSOP@ietf.org
> https://www.ietf.org/mailman/listinfo/dnsop
>