The Uniform Resource Identifier (URI) DNS Resource Record
RFC 7553
| Document | Type |
RFC - Informational
(June 2015; No errata)
Was draft-faltstrom-uri (individual)
|
|
|---|---|---|---|
| Last updated | 2015-10-14 | ||
| Stream | IETF | ||
| Formats | plain text html pdf htmlized bibtex | ||
| Reviews | |||
| Stream | WG state | (None) | |
| Document shepherd | Paul Hoffman | ||
| Shepherd write-up | Show (last changed 2015-03-04) | ||
| IESG | IESG state | RFC 7553 (Informational) | |
| Consensus Boilerplate | Yes | ||
| Telechat date | |||
| Responsible AD | Pete Resnick | ||
| Send notices to | (None) | ||
| IANA | IANA review state | Version Changed - Review Needed | |
| IANA action state | RFC-Ed-Ack | ||
Internet Engineering Task Force (IETF) P. Faltstrom
Request for Comments: 7553 Netnod
Category: Informational O. Kolkman
ISSN: 2070-1721 ISOC
June 2015
The Uniform Resource Identifier (URI) DNS Resource Record
Abstract
This document describes the already registered DNS resource record
(RR) type, called the Uniform Resource Identifier (URI) RR, that is
used for publishing mappings from hostnames to URIs.
Status of This Memo
This document is not an Internet Standards Track specification; it is
published for informational purposes.
This document is a product of the Internet Engineering Task Force
(IETF). It represents the consensus of the IETF community. It has
received public review and has been approved for publication by the
Internet Engineering Steering Group (IESG). Not all documents
approved by the IESG are a candidate for any level of Internet
Standard; see Section 2 of RFC 5741.
Information about the current status of this document, any errata,
and how to provide feedback on it may be obtained at
http://www.rfc-editor.org/info/rfc7553.
Copyright Notice
Copyright (c) 2015 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
(http://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
the Trust Legal Provisions and are provided without warranty as
described in the Simplified BSD License.
Faltstrom & Kolkman Informational [Page 1]
RFC 7553 URI Resource Record June 2015
Table of Contents
1. Introduction . . . . . . . . . . . . . . . . . . . . . . . . 3
2. Applicability Statement . . . . . . . . . . . . . . . . . . . 3
3. DNS Considerations . . . . . . . . . . . . . . . . . . . . . 4
4. The Format of the URI RR . . . . . . . . . . . . . . . . . . 4
4.1. Owner Name, Class, and Type . . . . . . . . . . . . . . . 4
4.2. Priority . . . . . . . . . . . . . . . . . . . . . . . . 5
4.3. Weight . . . . . . . . . . . . . . . . . . . . . . . . . 5
4.4. Target . . . . . . . . . . . . . . . . . . . . . . . . . 5
4.5. URI RDATA Wire Format . . . . . . . . . . . . . . . . . . 6
5. Usages . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
5.1. Example: FTP Server in the example.com Domain . . . . . . 6
5.2. Relation to S-NAPTR . . . . . . . . . . . . . . . . . . . 7
5.3. Relation to U-NAPTR . . . . . . . . . . . . . . . . . . . 7
5.4. Relation to SRV . . . . . . . . . . . . . . . . . . . . . 7
6. IANA Considerations . . . . . . . . . . . . . . . . . . . . . 7
6.1. Registration of the URI Resource Record Type . . . . . . 7
6.2. Registration of Services . . . . . . . . . . . . . . . . 8
7. Security Considerations . . . . . . . . . . . . . . . . . . . 8
8. References . . . . . . . . . . . . . . . . . . . . . . . . . 9
8.1. Normative References . . . . . . . . . . . . . . . . . . 9
8.2. Informative References . . . . . . . . . . . . . . . . . 9
Appendix A. The Original RRTYPE Allocation Request . . . . . . . 11
Acknowledgements . . . . . . . . . . . . . . . . . . . . . . . . 14
Authors' Addresses . . . . . . . . . . . . . . . . . . . . . . . 14
Faltstrom & Kolkman Informational [Page 2]
RFC 7553 URI Resource Record June 2015
1. Introduction
This document explains the use of the Domain Name System (DNS) for
the storage of URIs [RFC3986] and how to resolve hostnames to such
URIs that can be used by various applications using the URI resource
record type. For resolution, the application needs to know both the
hostname and the protocol that the URI is to be used for. The
protocol is registered by IANA.
Historically, uses of the DNS to map a domain name to a URL have
relied on the Naming Authority Pointer (NAPTR) RRTYPEs [RFC2915] and
then on the Dynamic Delegation Discovery System (DDDS) [RFC3401]
application framework with the DNS as a database as specified in RFC
3404 [RFC3404]. This has a number of implications such as the fact
the RRSet returned will contain all URIs "connected" with the owner,
and not only the ones related to a specific service.
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