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CurrentBEST CURRENT PRACTICEIETF streamBCP209

RFC 9609: Initializing a DNS Resolver with Priming Queries

In plain English — editorial summary, not part of the RFC

This document describes the queries that a DNS resolver should emit to initialize its cache. The result is that the resolver gets both a current NS resource record set (RRset) for the root zone and the necessary address information for reaching the root servers. This document obsoletes RFC 8109.

Document record

Document ID
RFC9609
Published
February 2025
Authors
P. Koch; M. Larson; P. Hoffman
Status
BEST CURRENT PRACTICE
Stream
IETF
Area
ops
Pages
10
Also known as
BCP209
Obsoletes:
RFC 8109

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The document record above — title, authors, date, status, stream, area, relationships, DOI and errata — is imported verbatim from the public RFC Editor index. The “in plain English” section is editorial: written by The metasystema editorial team, not part of the RFC. Where the two differ, the RFC text governs.

Last checked against the RFC Editor index on . RFCs are never revised after publication; changes are issued as new documents.

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canonical URL: /rfc/9609-initializing-a-dns-resolver-with-priming-queries