DNS Terminology
draft-ietf-dnsop-terminology-bis-01
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Network Working Group P. Hoffman
Internet-Draft ICANN
Obsoletes: 7719 (if approved) A. Sullivan
Intended status: Best Current Practice Dyn
Expires: January 9, 2017 K. Fujiwara
JPRS
July 8, 2016
DNS Terminology
draft-ietf-dnsop-terminology-bis-01
Abstract
The DNS is defined in literally dozens of different RFCs. The
terminology used by implementers and developers of DNS protocols, and
by operators of DNS systems, has sometimes changed in the decades
since the DNS was first defined. This document gives current
definitions for many of the terms used in the DNS in a single
document.
This document will be the successor to RFC 7719. It will update many
of the original RFCs.
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 http://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 January 9, 2017.
Copyright Notice
Copyright (c) 2016 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
Hoffman, et al. Expires January 9, 2017 [Page 1]
Internet-Draft DNS Terminology July 2016
(http://trustee.ietf.org/license-info) in effect on the date of
publication of this document. Please review these documents
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described in the Simplified BSD License.
Table of Contents
1. Introduction . . . . . . . . . . . . . . . . . . . . . . . . 2
2. Names . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
3. DNS Header and Response Codes . . . . . . . . . . . . . . . . 6
4. Resource Records . . . . . . . . . . . . . . . . . . . . . . 7
5. DNS Servers and Clients . . . . . . . . . . . . . . . . . . . 9
6. Zones . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
7. Registration Model . . . . . . . . . . . . . . . . . . . . . 17
8. General DNSSEC . . . . . . . . . . . . . . . . . . . . . . . 18
9. DNSSEC States . . . . . . . . . . . . . . . . . . . . . . . . 21
10. Security Considerations . . . . . . . . . . . . . . . . . . . 23
11. IANA Considerations . . . . . . . . . . . . . . . . . . . . . 23
12. References . . . . . . . . . . . . . . . . . . . . . . . . . 23
12.1. Normative References . . . . . . . . . . . . . . . . . . 23
12.2. Informative References . . . . . . . . . . . . . . . . . 26
Acknowledgements . . . . . . . . . . . . . . . . . . . . . . . . 29
Authors' Addresses . . . . . . . . . . . . . . . . . . . . . . . 29
1. Introduction
The Domain Name System (DNS) is a simple query-response protocol
whose messages in both directions have the same format. The protocol
and message format are defined in [RFC1034] and [RFC1035]. These
RFCs defined some terms, but later documents defined others. Some of
the terms from RFCs 1034 and 1035 now have somewhat different
meanings than they did in 1987.
This document collects a wide variety of DNS-related terms. Some of
them have been precisely defined in earlier RFCs, some have been
loosely defined in earlier RFCs, and some are not defined in any
earlier RFC at all.
Most of the definitions here are the consensus definition of the DNS
community -- both protocol developers and operators. Some of the
definitions differ from earlier RFCs, and those differences are
noted. In this document, where the consensus definition is the same
as the one in an RFC, that RFC is quoted. Where the consensus
definition has changed somewhat, the RFC is mentioned but the new
stand-alone definition is given. During the progression of this
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