Definition and Use of DNSSEC Negative Trust Anchors
draft-ietf-dnsop-negative-trust-anchors-11

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Document Type Active Internet-Draft (dnsop WG)
Last updated 2015-07-14
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Intended RFC status Informational
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Domain Name System Operations                                P. Ebersman
Internet-Draft                                                   Comcast
Intended status: Informational                              C. Griffiths
Expires: January 15, 2016
                                                               W. Kumari
                                                                  Google
                                                            J. Livingood
                                                                 Comcast
                                                                R. Weber
                                                                 Nominum
                                                           July 14, 2015

          Definition and Use of DNSSEC Negative Trust Anchors
               draft-ietf-dnsop-negative-trust-anchors-11

Abstract

   DNS Security Extensions (DNSSEC) is now entering widespread
   deployment.  However, domain signing tools and processes are not yet
   as mature and reliable as those for non-DNSSEC-related domain
   administration tools and processes.  This document defines Negative
   Trust Anchors which can be used to mitigate DNSSEC validation
   failures by disabling DNSSEC validation at specified domains.

   [RFC Editor: Please remove this before publication.  This document is
   being stored in github at https://github.com/wkumari/draft-livingood-
   dnsop-negative-trust-anchors . Authors accept pull requests, and keep
   the latest (edit buffer) versions there, so commenters can follow
   along at home.]

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
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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 January 15, 2016.

Ebersman, et al.        Expires January 15, 2016                [Page 1]
Internet-Draft        DNSSEC Negative Trust Anchors            July 2015

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
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   described in the Simplified BSD License.

Table of Contents

   1.  Introduction and motivation . . . . . . . . . . . . . . . . .   3
     1.1.  Definition of a Negative Trust Anchor . . . . . . . . . .   3
     1.2.  Motivations for Negative Trust Anchors  . . . . . . . . .   4
       1.2.1.  Mitigating Domain Validation Failures . . . . . . . .   4
       1.2.2.  Improving End User Experience . . . . . . . . . . . .   4
       1.2.3.  Avoiding Switching to a Non-Validating Resolver . . .   5
   2.  Use of a Negative Trust Anchor  . . . . . . . . . . . . . . .   5
     2.1.  Applicability of Negative Trust Anchors . . . . . . . . .   6
   3.  Managing Negative Trust Anchors . . . . . . . . . . . . . . .   7
     3.1.  Alerting Users to Negative Trust Anchor Use . . . . . . .   7
   4.  Removal of a Negative Trust Anchor  . . . . . . . . . . . . .   7
   5.  Comparison to Other DNS Misconfigurations . . . . . . . . . .   8
   6.  Intentionally Broken Domains  . . . . . . . . . . . . . . . .   8
   7.  Discovering broken domains  . . . . . . . . . . . . . . . . .   9
   8.  Privacy Considerations  . . . . . . . . . . . . . . . . . . .  11
   9.  IANA Considerations . . . . . . . . . . . . . . . . . . . . .  11
   10. Security Considerations . . . . . . . . . . . . . . . . . . .  11
   11. Acknowledgements  . . . . . . . . . . . . . . . . . . . . . .  11
   12. References  . . . . . . . . . . . . . . . . . . . . . . . . .  12
     12.1.  Normative References . . . . . . . . . . . . . . . . . .  12
     12.2.  Informative References . . . . . . . . . . . . . . . . .  12
   Appendix A.  Configuration Examples . . . . . . . . . . . . . . .  13
     A.1.  NLNet Labs Unbound  . . . . . . . . . . . . . . . . . . .  13
     A.2.  ISC BIND  . . . . . . . . . . . . . . . . . . . . . . . .  13
     A.3.  Nominum Vantio  . . . . . . . . . . . . . . . . . . . . .  14
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