Re: [Doh] Request for the DOH WG to adopt draft-hoffman-resolver-associated-doh

Ben Schwartz <bemasc@google.com> Wed, 16 January 2019 18:28 UTC

Return-Path: <bemasc@google.com>
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 33E00130E69 for <doh@ietfa.amsl.com>; Wed, 16 Jan 2019 10:28:23 -0800 (PST)
X-Virus-Scanned: amavisd-new at amsl.com
X-Spam-Flag: NO
X-Spam-Score: -17.641
X-Spam-Level:
X-Spam-Status: No, score=-17.641 tagged_above=-999 required=5 tests=[BAYES_00=-1.9, DKIMWL_WL_MED=-0.142, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, ENV_AND_HDR_SPF_MATCH=-0.5, HTML_MESSAGE=0.001, RCVD_IN_DNSWL_NONE=-0.0001, SPF_PASS=-0.001, URIBL_BLOCKED=0.001, USER_IN_DEF_DKIM_WL=-7.5, USER_IN_DEF_SPF_WL=-7.5] autolearn=ham autolearn_force=no
Authentication-Results: ietfa.amsl.com (amavisd-new); dkim=pass (2048-bit key) header.d=google.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 Y1ecfbJAa01b for <doh@ietfa.amsl.com>; Wed, 16 Jan 2019 10:28:18 -0800 (PST)
Received: from mail-vs1-xe32.google.com (mail-vs1-xe32.google.com [IPv6:2607:f8b0:4864:20::e32]) (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 EB0CC130E67 for <doh@ietf.org>; Wed, 16 Jan 2019 10:28:15 -0800 (PST)
Received: by mail-vs1-xe32.google.com with SMTP id u11so4518834vsp.11 for <doh@ietf.org>; Wed, 16 Jan 2019 10:28:15 -0800 (PST)
DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=20161025; h=mime-version:references:in-reply-to:from:date:message-id:subject:to :cc; bh=KXy9uW+W7S8ZaiXA24+QDB9Bsi67D+PHENm6pC4tOcc=; b=rkz7oDGW1Cb1E6gTpUT334LDtXSTjuO6wc+YicBNmbJJ1m6/LokYckRMwSOumMBnsr DIzdyvzDjR+XGcTV4fWBgDZYfINNp/0nH7cFxB4dk0eMHavpsmvAyLJzwK9GDafvZQPZ kRMAuh4QUyRnFD/BwA6HgrNYOh9s9qq3u8mfV6Fv62EhlKP3LH6by45Lth991n1QAAmo t67WuH2d5gSGG988lCj/ziraDwJbpumsUdnF7fC4ik1MAJRZDjiNdp/EI+ndkO9Xz9FK JtodA1AOlMhL1RUzQYkW2NyDvflXXPE5ntO6q2SdvAM1V3r7JdyGIodjJSxs9qF/IHZi BWsA==
X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:mime-version:references:in-reply-to:from:date :message-id:subject:to:cc; bh=KXy9uW+W7S8ZaiXA24+QDB9Bsi67D+PHENm6pC4tOcc=; b=VIqYCfopTobrrQn5rctKFdsWI9KXF0+a0EyXWI7CGKMSnHONBJ/o2I1zRy2Z1wZXqS ieNBCERp1JJO3AigHE+p72vQj0jjfhelmHfuWfgzhRuM3NSyAWE6Bwm+sgAQpK3aP3a7 FqRNY4yRw1lq3NioM/pB52WUVyrZKulleCCGmiRxf7htvpIQPAUZhPDX2x0HDDyZqzUi DPsO1YQW3dm5UQ8i6KZDfnSAFDOHSPreJ1l/5JidFf4+p9H+ZI4C28nak/9UpKicM7FQ SrT3628gq9OSCCK1DQZhKiG68w9MHnfuWvYBYoIM36DvKzsqaqCrRHz9m0rD5JtE2B8v sj9g==
X-Gm-Message-State: AJcUukf8rWr4VvxuTqWVb8Bse2/GBro8jCJwgEd2Pq+yNgYXKtDA4Gdl obbnxnyG81C/1MJAyj3erYK9r0GWSDFduy9ADuIJfZB/
X-Google-Smtp-Source: ALg8bN5LyY3vtXmNnJpwFujhLqowDWWqQiGaJfD0NwhDYBPg1L/HDTDWNqM5u/khCFnKN4wMnyA1ThmK2Mll+/eZAlA=
X-Received: by 2002:a67:1203:: with SMTP id 3mr4389372vss.207.1547663294677; Wed, 16 Jan 2019 10:28:14 -0800 (PST)
MIME-Version: 1.0
References: <8999D6F3-600E-4F1A-903C-10F8CAA6E4F3@icann.org> <6f2860bd-2a7f-01b5-2ec9-9667d71e3f38@andreasschulze.de>
In-Reply-To: <6f2860bd-2a7f-01b5-2ec9-9667d71e3f38@andreasschulze.de>
From: Ben Schwartz <bemasc@google.com>
Date: Wed, 16 Jan 2019 13:28:03 -0500
Message-ID: <CAHbrMsAB4GaUJXY1VyQVc0QonY9afGUzWdT5znPw+K4M2V=kNQ@mail.gmail.com>
To: "A. Schulze" <sca@andreasschulze.de>
Cc: DoH WG <doh@ietf.org>
Content-Type: multipart/signed; protocol="application/pkcs7-signature"; micalg=sha-256; boundary="000000000000f017d7057f9770da"
Archived-At: <https://mailarchive.ietf.org/arch/msg/doh/2Ugn59RZCri-kOcq6tbBDa--cWM>
Subject: Re: [Doh] Request for the DOH WG to adopt draft-hoffman-resolver-associated-doh
X-BeenThere: doh@ietf.org
X-Mailman-Version: 2.1.29
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, 16 Jan 2019 18:28:23 -0000

DNS over TLS already supports a way for clients to upgrade from unencrypted
DNS, by probing port 853 on the server's IP address.  I presume that's why
DNS over TLS discovery was not mentioned in this draft.  Is probing port
853 sufficient for your use case?

On Wed, Jan 16, 2019 at 1:17 PM A. Schulze <sca@andreasschulze.de> wrote:

>
>
> Am 16.01.19 um 01:25 schrieb Paul Hoffman:
> > So, does this WG want to adopt this as a work item?
>
> Hello,
>
> adopt "DoH Servers by TXT" using unbound is fairly simple.
> Maybe someone could verify that config.
>
> unbound.conf:
>         # option 1:
>         # resolver that understands this protocol but has no associated
> DoH server
>         server:
>          local-data: 'resolver-associated-doh.arpa. TXT ""'
>
>         # option 2:
>         # resolver that understands this protocol and has one associated
> DoH server
>         server:
>          local-data: 'resolver-associated-doh.arpa. TXT "
> https://doh.example/"'
>
>         # option 3:
>         # resolver that understands this protocol and has multiple
> associated DoH server
>         server:
>          local-data: 'resolver-associated-doh.arpa. TXT "
> https://doh01.example/"'
>          local-data: 'resolver-associated-doh.arpa. TXT "
> https://doh02.example/"'
>
> The second suggestion "DoH Servers by Addresses" isn't attractive to me.
> Getting a certificate for an IP isn't common these days.
>
> https://IPADDRESSGOESHERE/ -> Ask your favorite CA to issue a certificate
> for "IPADDRESSGOESHERE"...
>
> also:
>  * https://[2001:db8::53]/ -> Address in []
>  * Certificate SAN Entry   -> Address without []
> can this work with IPv6? I simply never tried that...
>
> I agree with Ralf on defining something similar for DoT, too
>
> Andreas
>
> _______________________________________________
> Doh mailing list
> Doh@ietf.org
> https://www.ietf.org/mailman/listinfo/doh
>