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Adaptive DNS Discovery (Active WG)
Int Area: Éric Vyncke, Erik Kline | 2020-Feb-21 —  

2021-03-22 charter

Adaptive DNS Discovery (add)


 Current Status: Active

     David C Lawrence <tale@dd.org>
     Glenn Deen <glenn_deen@comcast.com>

 Internet Area Directors:
     Erik Kline <ek.ietf@gmail.com>
     Éric Vyncke <evyncke@cisco.com>

 Internet Area Advisor:
     Éric Vyncke <evyncke@cisco.com>

 Mailing Lists:
     General Discussion: add@ietf.org
     To Subscribe:       https://www.ietf.org/mailman/listinfo/add
     Archive:            https://mailarchive.ietf.org/arch/browse/add/

Description of Working Group:

  Sending DNS messages over encrypted transports, as defined in DNS over
  TLS (DoT) [RFC 7858] and DNS over HTTPS (DoH) [RFC 8484], provides
  benefits to the security and privacy of DNS data. Clients, such as
  applications and host operating systems, have started adopting these
  protocols to provide these user benefits.

  This working group will focus on discovery and selection of DNS resolvers
  by DNS clients in a variety of networking environments, including public
  networks, private networks, and VPNs, supporting both encrypted and
  unencrypted resolvers.  It is chartered solely to develop technical
  mechanisms. Making any recommendations about specific policies for clients
  or servers is out of scope.

  Clients adopting encrypted DNS protocols need to determine which DNS
  servers support those protocols, and which server to use for specific
  queries if multiple servers are available. These decisions can vary based
  on the network environment, and also based on the content and purpose of
  the client queries.

  Network operators that start offering DNS encryption on their servers also
  need a way to indicate this support to clients. Communicating information
  about resolver configuration and behavior allows clients to make more
  informed decisions about which DNS servers to use. For example, a resolver
  may be able to resolve private or local names as a split DNS server.

  The Adaptive DNS Discovery (ADD) working group will work on the following

  - Define a mechanism that allows clients to discover DNS resolvers
    that support encryption and that are available to the client
    either on the public Internet or on private or local networks.

  - Define a mechanism that allows communication of DNS resolver
    information to clients for use in selection decisions. This could be
    part of the mechanism used for discovery, above.

  - Develop an informational document that describes mechanisms for
    clients to detect specific network environments (such as captive portal
    and split horizon) and to use that information to inform their DNS

  This working group will coordinate with dnsop, doh, and dprive for any
  changes required in DNS protocols and will make sure that those
  groups are included in major document reviews at appropriate times.
  It will also work with capport to ensure that solutions are applicable
  to captive networks.

Goals and Milestones:

All charter page changes, including changes to draft-list, rfc-list and milestones:

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