Providing Minimal-Sized Responses to DNS Queries with QTYPE=ANY
draft-jabley-dnsop-refuse-any-00

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Document Type Active Internet-Draft (individual)
Last updated 2015-09-30
Replaces draft-ogud-dnsop-acl-metaqueries
Replaced by draft-dnsop-refuse-any
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Network Working Group                                           J. Abley
Internet-Draft                                                 Dyn, Inc.
Updates: 1035 (if approved)                               O. Gudmundsson
Intended status: Standards Track                            M. Majkowski
Expires: April 2, 2016                                   CloudFlare Inc.
                                                      September 30, 2015

    Providing Minimal-Sized Responses to DNS Queries with QTYPE=ANY
                    draft-jabley-dnsop-refuse-any-00

Abstract

   The Domain Name System (DNS) specifies a query type (QTYPE) "ANY".
   The operator of an authoritative DNS server might choose not to
   respond to such queries for reasons of local policy, motivated by
   security, performance or other reasons.

   The DNS specification does not include specific guidance for the
   behaviour of DNS servers or clients in this situation.  This document
   aims to provide such guidance.

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 April 2, 2016.

Copyright Notice

   Copyright (c) 2015 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

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   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.

Table of Contents

   1.  Terminology  . . . . . . . . . . . . . . . . . . . . . . . . .  3
   2.  Introduction . . . . . . . . . . . . . . . . . . . . . . . . .  4
   3.  Motivations  . . . . . . . . . . . . . . . . . . . . . . . . .  5
   4.  General Approach . . . . . . . . . . . . . . . . . . . . . . .  6
   5.  Behaviour of DNS Responders  . . . . . . . . . . . . . . . . .  7
   6.  Behaviour of DNS Initiators  . . . . . . . . . . . . . . . . .  8
   7.  HINFO Considerations . . . . . . . . . . . . . . . . . . . . .  9
   8.  Changes to RFC 1035  . . . . . . . . . . . . . . . . . . . . . 10
   9.  Security Considerations  . . . . . . . . . . . . . . . . . . . 11
   10. IANA Considerations  . . . . . . . . . . . . . . . . . . . . . 12
   11. Acknowledgements . . . . . . . . . . . . . . . . . . . . . . . 13
   12. References . . . . . . . . . . . . . . . . . . . . . . . . . . 14
     12.1.  Normative References  . . . . . . . . . . . . . . . . . . 14
     12.2.  Informative References  . . . . . . . . . . . . . . . . . 14
   Appendix A.  Editorial Notes . . . . . . . . . . . . . . . . . . . 15
     A.1.   Venue . . . . . . . . . . . . . . . . . . . . . . . . . . 15
     A.2.   Change History  . . . . . . . . . . . . . . . . . . . . . 15
       A.2.1.  draft-jabley-dnsop-ordered-answers-00  . . . . . . . . 15
   Authors' Addresses . . . . . . . . . . . . . . . . . . . . . . . . 16

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1.  Terminology

   This document uses terminology specific to the Domain Name System
   (DNS), descriptions of which can be found in
   [I-D.ietf-dnsop-dns-terminology].

   In this document, "ANY Query" refers to a DNS query with QTYPE=ANY.
   An "ANY Response" is a response to such a query.

   In an exchange of DNS messages between two hosts, this document
   refers to the host sending a DNS request as the initiator, and the
   host sending a DNS response as the responder.

   The key words "MUST", "MUST NOT", "REQUIRED", "SHALL", "SHALL NOT",
   "SHOULD", "SHOULD NOT", "RECOMMENDED", "MAY" and "OPTIONAL" in this
   document are to be interpreted as described in [RFC2119].

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