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Extension Mechanisms for DNS (EDNS) EXPIRE Option (RFC7314)

IP.com Disclosure Number: IPCOM000237893D
Publication Date: 2014-Jul-18
Document File: 8 page(s) / 8K

Publishing Venue

The IP.com Prior Art Database

Related People

M. Andrews: AUTHOR

Abstract

The expire field of a DNS zone's SOA record [RFC1035] is supposed to indicate when a secondary server shall discard the contents of the zone when it has been unable to contact the primary [RFC1034]. Current practice only works when all the secondaries contact the primary directly to perform refresh queries and zone transfers.

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Independent Submission                                        M. Andrews Request for Comments: 7314                                           ISC Category: Experimental                                         July 2014 ISSN: 2070-1721

            Extension Mechanisms for DNS (EDNS) EXPIRE Option

Abstract

   This document specifies a method for secondary DNS servers to honour    the SOA EXPIRE field as if they were always transferring from the    primary, even when using other secondaries to perform indirect    transfers and refresh queries.

Status of This Memo

   This document is not an Internet Standards Track specification; it is    published for examination, experimental implementation, and    evaluation.

   This document defines an Experimental Protocol for the Internet    community.  This is a contribution to the RFC Series, independently    of any other RFC stream.  The RFC Editor has chosen to publish this    document at its discretion and makes no statement about its value for    implementation or deployment.  Documents approved for publication by    the RFC Editor are not a candidate for any level of Internet    Standard; see 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/rfc7314.

Copyright Notice

   Copyright (c) 2014 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.

Andrews                       Experimental                      [Page 1]
 RFC 7314    Extension Mechanisms for DNS (EDNS) EXPIRE Option  July 2014

 Table of Contents

   1.  Introduction  . . . . . . . . . . . . . . . . . . . . . . . .   2      1.1.  Reserved Words  . . . . . . . . . . . . . . . . . . . . .   2    2.  Expire EDNS Option (Query)  . . . . . . . . . . . . . . . . .   3    3.  Expire EDNS Option (Response) . . . . . . . . . . . . . . . .   3      3.1.  Primary Server  . . . . . . . . . . . . . . . . . . . . .   3      3.2.  Secondary Server  . . . . . . . . . . . . . . . . . . . .   3      3.3.  Non-authoritative Server  . . . . . . . . . . . . . . . .   3    4.  Secondary Behaviour . . . . . . . . . . . . . . . . . . . . .   3    5.  IANA Considerations . . . . . . . . . . . . . . . . . . . . .   4    6.  Security Considerations . . . . . . ....