Re: [homenet] securing zone transfer

Michael Richardson <mcr+ietf@sandelman.ca> Wed, 12 June 2019 14:22 UTC

Return-Path: <mcr+ietf@sandelman.ca>
X-Original-To: homenet@ietfa.amsl.com
Delivered-To: homenet@ietfa.amsl.com
Received: from localhost (localhost [127.0.0.1]) by ietfa.amsl.com (Postfix) with ESMTP id 404731200A4 for <homenet@ietfa.amsl.com>; Wed, 12 Jun 2019 07:22:25 -0700 (PDT)
X-Virus-Scanned: amavisd-new at amsl.com
X-Spam-Flag: NO
X-Spam-Score: -4.2
X-Spam-Level:
X-Spam-Status: No, score=-4.2 tagged_above=-999 required=5 tests=[BAYES_00=-1.9, RCVD_IN_DNSWL_MED=-2.3, SPF_HELO_NONE=0.001, SPF_PASS=-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 jyMIZpaTmYlv for <homenet@ietfa.amsl.com>; Wed, 12 Jun 2019 07:22:23 -0700 (PDT)
Received: from tuna.sandelman.ca (tuna.sandelman.ca [209.87.249.19]) (using TLSv1.2 with cipher AECDH-AES256-SHA (256/256 bits)) (No client certificate requested) by ietfa.amsl.com (Postfix) with ESMTPS id 6D28D120046 for <homenet@ietf.org>; Wed, 12 Jun 2019 07:22:22 -0700 (PDT)
Received: from sandelman.ca (obiwan.sandelman.ca [209.87.249.21]) by tuna.sandelman.ca (Postfix) with ESMTP id 64D1B380BE; Wed, 12 Jun 2019 10:20:57 -0400 (EDT)
Received: by sandelman.ca (Postfix, from userid 179) id D2DEAF4A; Wed, 12 Jun 2019 10:22:20 -0400 (EDT)
Received: from sandelman.ca (localhost [127.0.0.1]) by sandelman.ca (Postfix) with ESMTP id D03A855A; Wed, 12 Jun 2019 10:22:20 -0400 (EDT)
From: Michael Richardson <mcr+ietf@sandelman.ca>
To: Juliusz Chroboczek <jch@irif.fr>
cc: homenet <homenet@ietf.org>
In-Reply-To: <87ef3zwoew.wl-jch@irif.fr>
References: <CADZyTkkgd8f49V+yoZvPZXx3b-_YRzpgUY1-obroq9QMLnFWNw@mail.gmail.com> <878su8fj24.wl-jch@irif.fr> <2348.1560261275@localhost> <87ftofwqut.wl-jch@irif.fr> <27503.1560302791@localhost> <87ef3zwoew.wl-jch@irif.fr>
X-Mailer: MH-E 8.6; nmh 1.7+dev; GNU Emacs 24.5.1
X-Face: $\n1pF)h^`}$H>Hk{L"x@)JS7<%Az}5RyS@k9X%29-lHB$Ti.V>2bi.~ehC0; <'$9xN5Ub# z!G,p`nR&p7Fz@^UXIn156S8.~^@MJ*mMsD7=QFeq%AL4m<nPbLgmtKK-5dC@#:k
MIME-Version: 1.0
Content-Type: multipart/signed; boundary="=-=-="; micalg="pgp-sha256"; protocol="application/pgp-signature"
Date: Wed, 12 Jun 2019 10:22:20 -0400
Message-ID: <4109.1560349340@localhost>
Archived-At: <https://mailarchive.ietf.org/arch/msg/homenet/io7iwtdo6p7yupFFNbePplzVRHc>
Subject: Re: [homenet] securing zone transfer
X-BeenThere: homenet@ietf.org
X-Mailman-Version: 2.1.29
Precedence: list
List-Id: IETF Homenet WG mailing list <homenet.ietf.org>
List-Unsubscribe: <https://www.ietf.org/mailman/options/homenet>, <mailto:homenet-request@ietf.org?subject=unsubscribe>
List-Archive: <https://mailarchive.ietf.org/arch/browse/homenet/>
List-Post: <mailto:homenet@ietf.org>
List-Help: <mailto:homenet-request@ietf.org?subject=help>
List-Subscribe: <https://www.ietf.org/mailman/listinfo/homenet>, <mailto:homenet-request@ietf.org?subject=subscribe>
X-List-Received-Date: Wed, 12 Jun 2019 14:22:25 -0000

Juliusz Chroboczek <jch@irif.fr> wrote:
    > Your son clicks "publish name" in the Minecraft server's UI, at which
    > point he faces the following dialog box:

    > Domain: dyndns.minecraft.example.com
    > Hostname: minecraft-7ac8
    > Password:

And where does the password come from?
If this is one he picks, how can I know that it's a good one?
And how do I prevent him from doing this?

    > Your turn now.  Could you please describe the UI that you envision?

The list of names (from the internal mDNS/DNS-SD, as well as DHCP hostnames)
is presented to the house owner, they click on the ones that the want to
be publically visible.  (They may also apply a security policy for access,
but that's not a naming issue)

There are no passwords.

--
Michael Richardson <mcr+IETF@sandelman.ca>, Sandelman Software Works
 -= IPv6 IoT consulting =-