The Uniform Resource Identifier (URI) DNS Resource Record
RFC 7553
Document | Type |
RFC - Informational
(June 2015; No errata)
Was draft-faltstrom-uri (individual)
|
|
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Authors | Patrik Fältström , Olaf Kolkman | ||
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.Show full document text