Definition and Use of DNSSEC Negative Trust Anchors
draft-ietf-dnsop-negative-trust-anchors-08

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Document Type Active Internet-Draft (dnsop WG)
Last updated 2015-05-10
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Domain Name System Operations                                P. Ebersman
Internet-Draft                                                   Comcast
Intended status: Informational                              C. Griffiths
Expires: November 11, 2015
                                                               W. Kumari
                                                                  Google
                                                            J. Livingood
                                                                 Comcast
                                                                R. Weber
                                                                 Nominum
                                                            May 10, 2015

          Definition and Use of DNSSEC Negative Trust Anchors
               draft-ietf-dnsop-negative-trust-anchors-08

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.  Negative Trust Anchors
   (described in this document) can be used to mitigate DNSSEC
   validation failures.

   [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
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   This Internet-Draft will expire on November 11, 2015.

Ebersman, et al.        Expires November 11, 2015               [Page 1]
Internet-Draft        DNSSEC Negative Trust Anchors             May 2015

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   Copyright (c) 2015 IETF Trust and the persons identified as the
   document authors.  All rights reserved.

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Table of Contents

   1.  Introduction and motivation . . . . . . . . . . . . . . . . .   3
     1.1.  Definition of a Negative Trust Anchor . . . . . . . . . .   3
     1.2.  Domain Validation Failures  . . . . . . . . . . . . . . .   4
     1.3.  End User Reaction . . . . . . . . . . . . . . . . . . . .   4
     1.4.  Switching to a Non-Validating Resolver is Not Recommended   5
   2.  Use of a Negative Trust Anchor  . . . . . . . . . . . . . . .   5
   3.  Managing Negative Trust Anchors . . . . . . . . . . . . . . .   7
     3.1.  Alerting Users to NTA 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.  Other Considerations  . . . . . . . . . . . . . . . . . . . .  11
     8.1.  Security Considerations . . . . . . . . . . . . . . . . .  11
     8.2.  Privacy Considerations  . . . . . . . . . . . . . . . . .  11
     8.3.  IANA Considerations . . . . . . . . . . . . . . . . . . .  11
   9.  Acknowledgements  . . . . . . . . . . . . . . . . . . . . . .  11
   10. References  . . . . . . . . . . . . . . . . . . . . . . . . .  12
     10.1.  Normative References . . . . . . . . . . . . . . . . . .  12
     10.2.  Informative References . . . . . . . . . . . . . . . . .  12
   Appendix A.  Configuration Examples . . . . . . . . . . . . . . .  13
     A.1.  NLNet Labs Unbound  . . . . . . . . . . . . . . . . . . .  13
     A.2.  ISC BIND  . . . . . . . . . . . . . . . . . . . . . . . .  13
     A.3.  Nominum Vantio  . . . . . . . . . . . . . . . . . . . . .  14
   Appendix B.  Document Change Log  . . . . . . . . . . . . . . . .  14
   Authors' Addresses  . . . . . . . . . . . . . . . . . . . . . . .  17
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