Discovery of Designated Resolvers

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Publisher: IETF
Doc Type: Standard
Pages: 16
Abstract: This document defines Discovery of Designated Resolvers (DDR), a set of mechanisms for DNS clients to use DNS records to discover a resolver's encrypted DNS configuration. An Encrypted DNS Resolver discovered in this manner is referred to as a "Designated Resolver". These mechanisms can be used to move from unencrypted DNS to encrypted DNS when only the IP address of a resolver is known. These mechanisms are designed to be limited to cases where Unencrypted DNS Resolvers and their Designated Resolvers are operated by the same entity or cooperating entities. It can also be used to discover support for encrypted DNS protocols when the name of an Encrypted DNS Resolver is known.
Publication Date: 2023-11-01
Status Note: Proposed Standard
DOI: 10.17487/RFC9462
Link: https://doi.org/10.17487/RFC9462
Author(s): Tommy Pauly
Eric Kinnear
Christopher A. Wood
Patrick McManus
Tommy Jensen
Keyword(s): DNS, DoH, DoT, DoQ

Latest version of IETF RFC 9462

Document Versions — IETF RFC 9462

▶ IETF RFC 9462 (2023-11-01)

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Normative Reference(s)

IETF RFC 1918 [Active*]
IETF RFC 2119 [Active*]
IETF RFC 3927 [Active*]
IETF RFC 4193 [Active*]
IETF RFC 4291 [Active*]
IETF RFC 5280 [Active, Amended*]
IETF RFC 6303 [Active*]
IETF RFC 6761 [Active*]
IETF RFC 7858 [Active*]
IETF RFC 8174 [Active*]
IETF RFC 8484 [Active*]
IETF RFC 9250 [Active*]
IETF RFC 9460 [Active*]
IETF RFC 9461 [Active*]
IETF RFC 9463 [Active*]

Bibliographic Reference(s)

IETF.draft-ietf-tls-esni-17 — I-D.ietf-tls-esni EXTERNAL
IETF.draft-schinazi-httpbis-doh-preference-hints-02 — I-D.schinazi-httpbis-doh-preference-hints EXTERNAL
IETF RFC 2132 [Active*]
IETF RFC 6105 [Active*]
IETF RFC 8106 [Active*]
IETF RFC 8415 [Superseded*]
IETF RFC 8446 [Superseded*]
IETF RFC 8880 [Active*]

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Referenced By

IETF RFC 9463 [Active*]