DNS Perimeter Overlay
draft-dcrocker-dns-perimeter-00

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Last updated 2019-04-02
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Network Working Group                                         D. Crocker
Internet-Draft                               Brandenburg InternetWorking
Intended status: Informational                                  T. Adams
Expires: October 4, 2019                                      Proofpoint
                                                           April 2, 2019

                         DNS Perimeter Overlay
                    draft-dcrocker-dns-perimeter-00

Abstract

   The Domain Name System (DNS) naming syntax provides no meta-data for
   indicating administrative transitions through the hierarchy.  For
   example, it does not distinguish the higher-level portions that
   operate as public registries, versus those that operate as private
   organizations.  This specification creates a basic overlay mechanism
   for defining a logical Perimeter between administrative entities
   through the naming hierarchy.  The mechanism can then be applied for
   a variety of independent administrative indications.

Status of This Memo

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   This Internet-Draft will expire on October 4, 2019.

Copyright Notice

   Copyright (c) 2019 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
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   carefully, as they describe your rights and restrictions with respect

Crocker & Adams          Expires October 4, 2019                [Page 1]
Internet-Draft                  Perimeter                     April 2019

   to this document.  Code Components extracted from this document must
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Table of Contents

   1.  Introduction  . . . . . . . . . . . . . . . . . . . . . . . .   2
   2.  History . . . . . . . . . . . . . . . . . . . . . . . . . . .   3
   3.  Perimeter Overlay Overview  . . . . . . . . . . . . . . . . .   5
   4.  DNS Perimeter Overlay Syntax  . . . . . . . . . . . . . . . .   6
     4.1.  Perimeter Branch Indication . . . . . . . . . . . . . . .   6
     4.2.  Perimeter TXT RR  . . . . . . . . . . . . . . . . . . . .   7
     4.3.  Syntax ExampleS . . . . . . . . . . . . . . . . . . . . .   8
   5.  Discussion  . . . . . . . . . . . . . . . . . . . . . . . . .   8
     5.1.  End/Begin Interaction . . . . . . . . . . . . . . . . . .   9
     5.2.  Schema/Schema Interaction . . . . . . . . . . . . . . . .   9
   6.  Sample Overlay Templates  . . . . . . . . . . . . . . . . . .   9
     6.1.  Default/Override 'Convenience' Overlay  . . . . . . . . .  10
     6.2.  Master/Addition 'Control' Overlay . . . . . . . . . . . .  10
     6.3.  Vendor/Customer Overlay . . . . . . . . . . . . . . . . .  11
     6.4.  Organizational Alias  . . . . . . . . . . . . . . . . . .  11
   7.  Emulating DNS Wildcard for Search Efficiency  . . . . . . . .  11
   8.  IANA Considerations . . . . . . . . . . . . . . . . . . . . .  13
     8.1.  _perim Registration in DNS Underscore Global Scoped
           Entry Registry  . . . . . . . . . . . . . . . . . . . . .  13
     8.2.  DNS Perimeter Overlay Registry  . . . . . . . . . . . . .  13
     8.3.  Suffix Entry in DNS Perimeter Overlay Registry  . . . . .  14
   9.  Security Considerations . . . . . . . . . . . . . . . . . . .  15
   10. References  . . . . . . . . . . . . . . . . . . . . . . . . .  15
     10.1.  References - Normative . . . . . . . . . . . . . . . . .  15
     10.2.  References - Informative . . . . . . . . . . . . . . . .  15
   Appendix A.  Acknowledgements . . . . . . . . . . . . . . . . . .  16
   Appendix B.  DNS Suffix Perimeter . . . . . . . . . . . . . . . .  17
     B.1.  IANA DNS Suffix Registration  . . . . . . . . . . . . . .  18
     B.2.  Suffix Perimeter TXT Syntax . . . . . . . . . . . . . . .  18
   Authors' Addresses  . . . . . . . . . . . . . . . . . . . . . . .  20

1.  Introduction

   Although some administrative structure can be inferred for the Domain
   Name System (DNS), there is no formalized syntax that distinguishes
   between the sequence of names in its referenced hierarchy.  It does
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