Network Working Group M. Blanchet
Internet-Draft Viagenie
Obsoletes: 2870 (if approved) L-J. Liman
Intended status: Best Current Practice Netnod
Expires: March 27, 2016 September 24, 2015

DNS Root Name Service Protocol and Deployment Requirements


The DNS Root Name service is a critical part of the Internet architecture. The protocol and deployment requirements expected to be implemented for the DNS root name service are defined in this document. Operational requirements are out of scope.

Status of This Memo

This Internet-Draft is submitted in full conformance with the provisions of BCP 78 and BCP 79.

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This Internet-Draft will expire on March 27, 2016.

Copyright Notice

Copyright (c) 2015 IETF Trust and the persons identified as the document authors. All rights reserved.

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Table of Contents

1. Introduction

[RFC2870] discusses protocol and operational requirements for root name servers for Internet's domain name system(DNS) protocol [RFC1035]. Since its publication, both protocol and operational requirements have evolved. It makes more sense now to separate the two sets of requirements into two separate documents. The operational requirements are defined in [RSSAC-001]. This document defines the protocol requirements and some deployment requirements.

The root servers are authoritative servers of the unique [RFC2826] root zone (".")[ROOTZONE]. They currently also serve the zone. Some also serve the zone for the .arpa top-level domain[ARPAZONE]. This document describes the external interface of the root name servers from a protocol viewpoint of the service. It specifies basic requirements for the Internet that DNS clients meet when interacting with a root name service over the public Internet.

The keywords MUST, MUST NOT, REQUIRED, SHALL, SHALL NOT, SHOULD, SHOULD NOT, RECOMMENDED, MAY, and OPTIONAL, when they appear in this document, are to be interpreted as described in BCP 14, [RFC2119].

1.1. RFC 2870 as Historic

This document obsoletes and reclassifies [RFC2870] as Historic.

This document and [RSSAC-001] together functionally replace [RFC2870].

2. Protocol Requirements

This section describes the minimum high-level protocol requirements. Operative details are documented in [RSSAC-001] and implementation is left to the operators of the root name service.

The root name service:

3. Deployment Requirements

The root name service:

4. Security Considerations

This document does not specify a new protocol. However, the root name service is a key component of the Internet architecture and play a key role into the overall security of the Internet[RFC2826]. Specific security considerations on the DNS protocols are discussed in their respective specifications. The security considerations on the operational side of the root name servers are discussed in [RSSAC-001].

5. IANA Considerations

This document has no action for IANA.

6. Acknowledgements

Some text was taken from [RFC2870]. The editors of this document would like to sincerely thank the following individuals for valuable contributions to the text: Andrew Sullivan, Simon Perreault, Jean-Philippe Dionne, Dave Thaler, Russ Housley, Alissa Cooper, Joe Abley, Joao Damas, Daniel Karrenberg, Jacques Latour, Eliot Lear, Bill Manning, David Conrad, Paul Hoffman, Terry Manderson, Jari Arkko, Mark Andrews.

7. Informative References

, "
[ARPAZONE] Internet Assigned Numbers Authority (IANA), , ".ARPA Zone Management"
[RFC0768] Postel, J., "User Datagram Protocol", STD 6, RFC 768, DOI 10.17487/RFC0768, August 1980.
[RFC0791] Postel, J., "Internet Protocol", STD 5, RFC 791, DOI 10.17487/RFC0791, September 1981.
[RFC0793] Postel, J., "Transmission Control Protocol", STD 7, RFC 793, DOI 10.17487/RFC0793, September 1981.
[RFC1035] Mockapetris, P., "Domain names - implementation and specification", STD 13, RFC 1035, DOI 10.17487/RFC1035, November 1987.
[RFC1122] Braden, R., "Requirements for Internet Hosts - Communication Layers", STD 3, RFC 1122, DOI 10.17487/RFC1122, October 1989.
[RFC2119] Bradner, S., "Key words for use in RFCs to Indicate Requirement Levels", BCP 14, RFC 2119, DOI 10.17487/RFC2119, March 1997.
[RFC2181] Elz, R. and R. Bush, "Clarifications to the DNS Specification", RFC 2181, DOI 10.17487/RFC2181, July 1997.
[RFC2460] Deering, S. and R. Hinden, "Internet Protocol, Version 6 (IPv6) Specification", RFC 2460, DOI 10.17487/RFC2460, December 1998.
[RFC2826] Internet Architecture Board, "IAB Technical Comment on the Unique DNS Root", RFC 2826, DOI 10.17487/RFC2826, May 2000.
[RFC2870] Bush, R., Karrenberg, D., Kosters, M. and R. Plzak, "Root Name Server Operational Requirements", BCP 40, RFC 2870, DOI 10.17487/RFC2870, June 2000.
[RFC3172] Huston, G., "Management Guidelines & Operational Requirements for the Address and Routing Parameter Area Domain ("arpa")", BCP 52, RFC 3172, DOI 10.17487/RFC3172, September 2001.
[RFC4035] Arends, R., Austein, R., Larson, M., Massey, D. and S. Rose, "Protocol Modifications for the DNS Security Extensions", RFC 4035, DOI 10.17487/RFC4035, March 2005.
[RFC6891] Damas, J., Graff, M. and P. Vixie, "Extension Mechanisms for DNS (EDNS(0))", STD 75, RFC 6891, DOI 10.17487/RFC6891, April 2013.
[ROOTZONE]Root Zone"
[RSSAC-001] Root Server System Advisory Committee (RSSAC), , Service Expectations of Root Servers", November 2014.

Authors' Addresses

Marc Blanchet Viagenie 246 Aberdeen Quebec, QC G1R 2E1 Canada EMail: URI:
Lars-Johan Liman Netnod Internet Exchange Box 30194 SE-104 25 Stockholm, Sweden EMail: URI: