Network Working Group                                         P. Hoffman
Internet-Draft                                                     ICANN
Updates: RFC 8499 (if approved)                          August 15, 2019                        February 11, 2020
Intended status: Standards Track
Expires: February 16, August 14, 2020

              Terminology for DNS Transports and Location


   This document adds terms and abbreviations to "DNS Terminology" (RFC
   8499) that relate to DNS running over various transports, as well as
   terms and abbreviations for DNS resolution at traditional and non-
   traditional locations.

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Table of Contents

   1.  New Terms and Abbreviations . . . . . . . . . . . . . . . . .   2
   2.  Normative References  . . . . . . . . . . . . . . . . . . . .   2
   Acknowledgments . . . . . . . . . . . . . . . . . . . . . . . . .   3
   Author's Address  . . . . . . . . . . . . . . . . . . . . . . . .   3

1.  New Terms and Abbreviations

   The following terms and abbreviations are added to Section 6 of

   DNS-over-TLS (DoT):  DNS over TLS as defined in [RFC7858] and its

   DNS-over-HTTPS (DoH):  DNS over HTTPS as defined in [RFC8484] and its

   Classic DNS:  DNS over UDP or TCP as defined in [RFC1035] and its
      successors.  Classic DNS applies to DNS communication between stub
      resolvers and recursive resolvers, and between recursive resolvers
      and authoritative servers.' servers.  This has sometimes been called "Do53".
      Classic DNS is not encrypted.

   Recursive DoT (RDoT):  RDoT specifically means DNS-over-TLS for
      transport between a stub resolver and a recursive resolver, or
      between a recursive resolver and another recursive resolver.  This
      term is necessary because it is expected that DNS-over-TLS will
      later be defined as a transport between recursive resolvers and
      authoritative servers,

   Authoritative DoT (ADoT):  If DNS-over-TLS is later defined as the
      transport between recursive resolvers and authoritative servers,
      ADoT specifically means DNS-over-TLS for transport between
      recursive resolvers and authoritative servers.

2.  Normative References

   [RFC1035]  Mockapetris, P., "Domain names - implementation and
              specification", STD 13, RFC 1035, DOI 10.17487/RFC1035,
              November 1987, <>.

   [RFC7858]  Hu, Z., Zhu, L., Heidemann, J., Mankin, A., Wessels, D.,
              and P. Hoffman, "Specification for DNS over Transport
              Layer Security (TLS)", RFC 7858, DOI 10.17487/RFC7858, May
              2016, <>.

   [RFC8484]  Hoffman, P. and P. McManus, "DNS Queries over HTTPS
              (DoH)", RFC 8484, DOI 10.17487/RFC8484, October 2018,

   [RFC8499]  Hoffman, P., Sullivan, A., and K. Fujiwara, "DNS
              Terminology", BCP 219, RFC 8499, DOI 10.17487/RFC8499,
              January 2019, <>.


   Sara Dickinson contributed ideas before the first draft was
   published.  Warren Kumari contributed the idea for "Applications
   Doing DNS" as a term.  Many people contributed the idea that it is
   better to define terms rather than just acronyms.

Author's Address

   Paul Hoffman