DNS Terminology
draft-ietf-dnsop-terminology-bis-07

Document Type Active Internet-Draft (dnsop WG)
Last updated 2017-10-18
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Network Working Group                                         P. Hoffman
Internet-Draft                                                     ICANN
Obsoletes: 7719 (if approved)                                A. Sullivan
Updates: 2308 (if approved)                                       Oracle
Intended status: Best Current Practice                       K. Fujiwara
Expires: April 21, 2018                                             JPRS
                                                        October 18, 2017

                            DNS Terminology
                  draft-ietf-dnsop-terminology-bis-07

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, and thus will
   obsolete RFC 7719.  It will also update RFC 2308.

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
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   Drafts is at http://datatracker.ietf.org/drafts/current/.

   Internet-Drafts are draft documents valid for a maximum of six months
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   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 21, 2018.

Copyright Notice

   Copyright (c) 2017 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 April 21, 2018                 [Page 1]
Internet-Draft               DNS Terminology                October 2017

   (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
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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 . . . . . . . . . . . . . . . .   9
   4.  Resource Records  . . . . . . . . . . . . . . . . . . . . . .  11
   5.  DNS Servers and Clients . . . . . . . . . . . . . . . . . . .  13
   6.  Zones . . . . . . . . . . . . . . . . . . . . . . . . . . . .  18
   7.  Registration Model  . . . . . . . . . . . . . . . . . . . . .  23
   8.  General DNSSEC  . . . . . . . . . . . . . . . . . . . . . . .  24
   9.  DNSSEC States . . . . . . . . . . . . . . . . . . . . . . . .  28
   10. Security Considerations . . . . . . . . . . . . . . . . . . .  30
   11. IANA Considerations . . . . . . . . . . . . . . . . . . . . .  30
   12. References  . . . . . . . . . . . . . . . . . . . . . . . . .  30
     12.1.  Normative References . . . . . . . . . . . . . . . . . .  30
     12.2.  Informative References . . . . . . . . . . . . . . . . .  33
   Appendix A.  Definitions Updated by this Document . . . . . . . .  36
   Appendix B.  Definitions First Defined in this Document . . . . .  37
   Index . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  38
   Acknowledgements  . . . . . . . . . . . . . . . . . . . . . . . .  42
   Authors' Addresses  . . . . . . . . . . . . . . . . . . . . . . .  42

1.  Introduction

   The Domain Name System (DNS) is a simple query-response protocol
   whose messages in both directions have the same format.  (See
   Section 2 for a fuller definition.)  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
   [RFC1034] and [RFC1035] 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
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