DNS Zone Transfer Protocol (AXFR)
RFC 5936
Document | Type | RFC - Proposed Standard (June 2010; No errata) | |
---|---|---|---|
Authors | Edward Lewis , Alfred Hoenes | ||
Last updated | 2018-12-20 | ||
Stream | IETF | ||
Formats | plain text html pdf htmlized bibtex | ||
Reviews | |||
Stream | WG state | (None) | |
Document shepherd | No shepherd assigned | ||
IESG | IESG state | RFC 5936 (Proposed Standard) | |
Action Holders |
(None)
|
||
Consensus Boilerplate | Unknown | ||
Telechat date | |||
Responsible AD | Ralph Droms | ||
Send notices to | (None) |
Internet Engineering Task Force (IETF) E. Lewis Request for Comments: 5936 NeuStar, Inc. Updates: 1034, 1035 A. Hoenes, Ed. Category: Standards Track TR-Sys ISSN: 2070-1721 June 2010 DNS Zone Transfer Protocol (AXFR) Abstract The standard means within the Domain Name System protocol for maintaining coherence among a zone's authoritative name servers consists of three mechanisms. Authoritative Transfer (AXFR) is one of the mechanisms and is defined in RFC 1034 and RFC 1035. The definition of AXFR has proven insufficient in detail, thereby forcing implementations intended to be compliant to make assumptions, impeding interoperability. Yet today we have a satisfactory set of implementations that do interoperate. This document is a new definition of AXFR -- new in the sense that it records an accurate definition of an interoperable AXFR mechanism. Status of This Memo This is an Internet Standards Track document. 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). Further information on Internet Standards is available in 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/rfc5936. Lewis & Hoenes Standards Track [Page 1] RFC 5936 DNS Zone Transfer Protocol (AXFR) June 2010 Copyright Notice Copyright (c) 2010 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. This document may contain material from IETF Documents or IETF Contributions published or made publicly available before November 10, 2008. The person(s) controlling the copyright in some of this material may not have granted the IETF Trust the right to allow modifications of such material outside the IETF Standards Process. Without obtaining an adequate license from the person(s) controlling the copyright in such materials, this document may not be modified outside the IETF Standards Process, and derivative works of it may not be created outside the IETF Standards Process, except to format it for publication as an RFC or to translate it into languages other than English. Lewis & Hoenes Standards Track [Page 2] RFC 5936 DNS Zone Transfer Protocol (AXFR) June 2010 Table of Contents 1. Introduction ....................................................4 1.1. Definition of Terms ........................................4 1.2. Scope ......................................................5 1.3. Context ....................................................5 1.4. Coverage and Relationship to Original AXFR Specification ...5 2. AXFR Messages ...................................................6 2.1. AXFR Query .................................................8 2.1.1. Header Values .......................................8 2.1.2. Question Section ...................................10 2.1.3. Answer Section .....................................10 2.1.4. Authority Section ..................................10 2.1.5. Additional Section .................................10 2.2. AXFR Response .............................................11 2.2.1. Header Values ......................................12 2.2.2. Question Section ...................................14 2.2.3. Answer Section .....................................14 2.2.4. Authority Section ..................................14 2.2.5. Additional Section .................................14 2.3. TCP Connection Aborts .....................................15 3. Zone Contents ..................................................15 3.1. Records to Include ........................................15 3.2. Delegation Records ........................................16Show full document text