File formats:

Also available: XML file for editing

 

Status:

PROPOSED STANDARD

Authors:

H. Salgado
M. Vergara
D. Wessels

Stream:

IETF

Source:

dnsop (ops)

Cite this RFC: TXT  |  XML  |   BibTeX

DOI:  https://doi.org/10.17487/RFC9660

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Abstract

The DNS ZONEVERSION option is a way for DNS clients to request, and for authoritative DNS servers to provide, information regarding the version of the zone from which a response is generated. The SERIAL field from the Start of Authority (SOA) resource record (RR) is a good example of a zone's version, and it is the only one defined by this specification. Additional version types may be defined by future specifications.

Including zone version data in a response simplifies and improves the quality of debugging and diagnostics since the version and the DNS answer are provided atomically. This can be especially useful for zones and DNS providers that leverage IP anycast or multiple backend systems. It functions similarly to the DNS Name Server Identifier (NSID) option described in RFC 5001.

For the definition of Status, see RFC 2026.

For the definition of Stream, see RFC 8729.