Special-Use Labels
draft-moonesamy-dnsop-special-use-label-registry-00
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dnsop S. Moonesamy
Internet-Draft
Intended status: Best Current Practice J. Yao
Expires: April 26, 2019 CNNIC
October 23, 2018
Special-Use Labels
draft-moonesamy-dnsop-special-use-label-registry-00
Abstract
This document describes what it means to say that a label is reserved
for special use, when reserving such a label is appropriate, and the
procedure for doing so. It establishes an IANA registry for such
special-use labels, and seeds it with entries for some of the already
established special labels.
Status of This Memo
This Internet-Draft is submitted in full conformance with the
provisions of BCP 78 and BCP 79.
Internet-Drafts are working documents of the Internet Engineering
Task Force (IETF). Note that other groups may also distribute
working documents as Internet-Drafts. The list of current Internet-
Drafts is at https://datatracker.ietf.org/drafts/current/.
Internet-Drafts are draft documents valid for a maximum of six months
and may be updated, replaced, or obsoleted by other documents at any
time. It is inappropriate to use Internet-Drafts as reference
material or to cite them other than as "work in progress."
This Internet-Draft will expire on April 26, 2019.
Copyright Notice
Copyright (c) 2018 IETF Trust and the persons identified as the
document authors. All rights reserved.
This document is subject to BCP 78 and the IETF Trust's Legal
Provisions Relating to IETF Documents
(https://trustee.ietf.org/license-info) in effect on the date of
publication of this document. Please review these documents
carefully, as they describe your rights and restrictions with respect
to this document. Code Components extracted from this document must
include Simplified BSD License text as described in Section 4.e of
Moonesamy & Yao Expires April 26, 2019 [Page 1]
Internet-Draft special-use-label October 2018
the Trust Legal Provisions and are provided without warranty as
described in the Simplified BSD License.
Table of Contents
1. Introduction . . . . . . . . . . . . . . . . . . . . . . . . 2
2. Security Considerations . . . . . . . . . . . . . . . . . . . 2
3. IANA Considerations . . . . . . . . . . . . . . . . . . . . . 2
3.1. Registration Procedures . . . . . . . . . . . . . . . . . 3
4. References . . . . . . . . . . . . . . . . . . . . . . . . . 3
4.1. Normative References . . . . . . . . . . . . . . . . . . 3
4.2. Informative References . . . . . . . . . . . . . . . . . 3
Authors' Addresses . . . . . . . . . . . . . . . . . . . . . . . 4
1. Introduction
The Domain Name System (DNS) rules for an Internet host name are
specified in [RFC0952] [RFC0952] and [RFC1123] [RFC1123]. Underscore
scoping [ID.draft-ietf-dnsop-attrleaf] [ID.draft-ietf-dnsop-attrleaf]
was introduced as an alternative to circumvent the deployment issues
of using a new RR type [RFC1034] [RFC1034]. Some applications, e.g.
web browsers, do not consider those underscore names as valid they do
not adhere to the rules for a host name [RFC1123]. This document
defines a registry to reserve special-use labels for cases where such
labels are needed as a workaround.
2. Security Considerations
A wildcard such as *.example.com could match a host name where a
special-use label is prepended to the domain name.
3. IANA Considerations
The DNS Special-Use Label registry entries consist of two fields:
Label, RR type, and Reference. The Label has to conform to DNS rules
for a label as defined in [RFC1034]. The initial assignment is as
follows:
+---------------------------------------+---------+------------+
| Label | RR Type | Reference |
+---------------------------------------+---------+------------+
| root-key-sentinel-is-ta-<key-tag> | A | [KSK-roll] |
| root-key-sentinel-is-ta-<key-tag> | AAAA | [KSK-roll] |
| root-key-sentinel-not-ta-<key-tag> | A | [KSK-roll] |
| root-key-sentinel-not-ta-<key-tag> | AAAA | [KSK-roll] |
+---------------------------------------+---------+------------+
Moonesamy & Yao Expires April 26, 2019 [Page 2]
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3.1. Registration Procedures
The registration policy for this registry is "IETF Review" [RFC8126]
[RFC8126]. The registrant of the label should provide the following
information:
o Label
o RR Type
o Reference
4. References
4.1. Normative References
[RFC0952] Harrenstien, K., Stahl, M., and E. Feinler, "DoD Internet
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