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
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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 ........................................16
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