Re: [lamps] CAA records on CNAMEs

"Salz, Rich" <rsalz@akamai.com> Mon, 18 March 2019 15:29 UTC

Return-Path: <rsalz@akamai.com>
X-Original-To: spasm@ietfa.amsl.com
Delivered-To: spasm@ietfa.amsl.com
Received: from localhost (localhost [127.0.0.1]) by ietfa.amsl.com (Postfix) with ESMTP id EF4FE128BCC for <spasm@ietfa.amsl.com>; Mon, 18 Mar 2019 08:29:11 -0700 (PDT)
X-Virus-Scanned: amavisd-new at amsl.com
X-Spam-Flag: NO
X-Spam-Score: -1.852
X-Spam-Level:
X-Spam-Status: No, score=-1.852 tagged_above=-999 required=5 tests=[BAYES_00=-1.9, DKIMWL_WL_HIGH=-0.001, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, KHOP_DYNAMIC=0.85, RCVD_IN_DNSWL_LOW=-0.7, SPF_PASS=-0.001] autolearn=ham autolearn_force=no
Authentication-Results: ietfa.amsl.com (amavisd-new); dkim=pass (2048-bit key) header.d=akamai.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 erfSR6hiVeIP for <spasm@ietfa.amsl.com>; Mon, 18 Mar 2019 08:29:10 -0700 (PDT)
Received: from mx0b-00190b01.pphosted.com (mx0b-00190b01.pphosted.com [IPv6:2620:100:9005:57f::1]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by ietfa.amsl.com (Postfix) with ESMTPS id 69C4413111F for <spasm@ietf.org>; Mon, 18 Mar 2019 08:29:03 -0700 (PDT)
Received: from pps.filterd (m0122330.ppops.net [127.0.0.1]) by mx0b-00190b01.pphosted.com (8.16.0.27/8.16.0.27) with SMTP id x2IFReWK007781; Mon, 18 Mar 2019 15:29:02 GMT
DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=akamai.com; h=from : to : subject : date : message-id : references : in-reply-to : content-type : content-id : content-transfer-encoding : mime-version; s=jan2016.eng; bh=RKNn+zMpReT0gtwV14MDNYDUfDngOu3CRaxIt4GoC0I=; b=GgKBzV3DWI8lVF1irGXaI8Q06B5EPJ5cffCS/z1HjTUKuvhvTECs+rPB1lbP0ipbVWJU u/SPdZP/0xnN2IIMaFhOpz6++xqQshN+UF4jeV7JzEPYbcd8v9PpKxz1mLZ2scMSZNOB Dbd5QSkC+KZidl0zA9S51zmmgBLXxJrxiQpxLBR5lxc6JHiXvlTufs/dhASsjGIWpjm+ Hp0pXztf21nnbZ0bWxuzLTVNWQCGQpOEY55xOI7vLtUdbiYfJNNA8mfFMfaxjutXlGVp Z5CgdZ4ZD2fY5o15yGL94obi9FhnDiiPUlzx1ltzSFJ/dKvBYBxTa5T49PSohqIkiKTj Kg==
Received: from prod-mail-ppoint1 (prod-mail-ppoint1.akamai.com [184.51.33.18]) by mx0b-00190b01.pphosted.com with ESMTP id 2r8snxs4ud-1 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=NOT); Mon, 18 Mar 2019 15:29:02 +0000
Received: from pps.filterd (prod-mail-ppoint1.akamai.com [127.0.0.1]) by prod-mail-ppoint1.akamai.com (8.16.0.27/8.16.0.27) with SMTP id x2IFH9hZ032421; Mon, 18 Mar 2019 11:29:01 -0400
Received: from email.msg.corp.akamai.com ([172.27.27.25]) by prod-mail-ppoint1.akamai.com with ESMTP id 2r8vfv2ru2-1 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-SHA384 bits=256 verify=NOT); Mon, 18 Mar 2019 11:29:01 -0400
Received: from USTX2EX-DAG1MB1.msg.corp.akamai.com (172.27.27.101) by ustx2ex-dag1mb5.msg.corp.akamai.com (172.27.27.105) with Microsoft SMTP Server (TLS) id 15.0.1473.3; Mon, 18 Mar 2019 10:28:59 -0500
Received: from USTX2EX-DAG1MB1.msg.corp.akamai.com ([172.27.6.131]) by ustx2ex-dag1mb1.msg.corp.akamai.com ([172.27.6.131]) with mapi id 15.00.1473.003; Mon, 18 Mar 2019 10:28:59 -0500
From: "Salz, Rich" <rsalz@akamai.com>
To: Jan Schaumann <jschauma@netmeister.org>, "spasm@ietf.org" <spasm@ietf.org>
Thread-Topic: [lamps] CAA records on CNAMEs
Thread-Index: AQHU3Egn5jypUS0wvEihODvZNh3z6aYRls8A
Date: Mon, 18 Mar 2019 15:28:58 +0000
Message-ID: <3D292A90-B3DF-46E7-9014-8E36AA214A90@akamai.com>
References: <20190316223225.GC11586@netmeister.org>
In-Reply-To: <20190316223225.GC11586@netmeister.org>
Accept-Language: en-US
Content-Language: en-US
X-MS-Has-Attach:
X-MS-TNEF-Correlator:
user-agent: Microsoft-MacOutlook/10.17.0.190309
x-ms-exchange-messagesentrepresentingtype: 1
x-ms-exchange-transport-fromentityheader: Hosted
x-originating-ip: [172.19.32.250]
Content-Type: text/plain; charset="utf-8"
Content-ID: <0DA7ED609A9BDA449F3EF4BB1E7591F0@akamai.com>
Content-Transfer-Encoding: base64
MIME-Version: 1.0
X-Proofpoint-Virus-Version: vendor=fsecure engine=2.50.10434:, , definitions=2019-03-18_10:, , signatures=0
X-Proofpoint-Spam-Details: rule=notspam policy=default score=0 suspectscore=0 malwarescore=0 phishscore=0 bulkscore=0 spamscore=0 mlxscore=0 mlxlogscore=619 adultscore=0 classifier=spam adjust=0 reason=mlx scancount=1 engine=8.0.1-1810050000 definitions=main-1903180113
X-Proofpoint-Virus-Version: vendor=fsecure engine=2.50.10434:, , definitions=2019-03-18_10:, , signatures=0
X-Proofpoint-Spam-Details: rule=notspam policy=default score=0 priorityscore=1501 malwarescore=0 suspectscore=0 phishscore=0 bulkscore=0 spamscore=0 clxscore=1011 lowpriorityscore=0 mlxscore=0 impostorscore=0 mlxlogscore=653 adultscore=0 classifier=spam adjust=0 reason=mlx scancount=1 engine=8.0.1-1810050000 definitions=main-1903180114
Archived-At: <https://mailarchive.ietf.org/arch/msg/spasm/uKRThlS61hLgh-ouastzfbU1OuE>
Subject: Re: [lamps] CAA records on CNAMEs
X-BeenThere: spasm@ietf.org
X-Mailman-Version: 2.1.29
Precedence: list
List-Id: "This is a venue for discussion of doing Some Pkix And SMime \(spasm\) work." <spasm.ietf.org>
List-Unsubscribe: <https://www.ietf.org/mailman/options/spasm>, <mailto:spasm-request@ietf.org?subject=unsubscribe>
List-Archive: <https://mailarchive.ietf.org/arch/browse/spasm/>
List-Post: <mailto:spasm@ietf.org>
List-Help: <mailto:spasm-request@ietf.org?subject=help>
List-Subscribe: <https://www.ietf.org/mailman/listinfo/spasm>, <mailto:spasm-request@ietf.org?subject=subscribe>
X-List-Received-Date: Mon, 18 Mar 2019 15:29:12 -0000

>    As noted in e.g.,
    https://datatracker.ietf.org/meeting/100/materials/slides-100-lamps-rfc-6844-bis-00.pdf,
    there are cases where it's desirable for an organization to set a CAA
    record on a CNAME.  For example:
  
Start by changing RFC RFC 1912, which does not allow any other data to appear with a CNAME. ;)