RFC 9664 on An EDNS(0) Option to Negotiate Leases on DNS Updates
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Subject: RFC 9664 on An EDNS(0) Option to Negotiate Leases on DNS Updates
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A new Request for Comments is now available in online RFC libraries.
RFC 9664
Title: An EDNS(0) Option to Negotiate
Leases on DNS Updates
Author: S. Cheshire,
T. Lemon
Status: Standards Track
Stream: IETF
Date: June 2025
Mailbox: cheshire@apple.com,
mellon@fugue.com
Pages: 12
Updates/Obsoletes/SeeAlso: None
I-D Tag: draft-ietf-dnssd-update-lease-08.txt
URL: https://www.rfc-editor.org/info/rfc9664
DOI: 10.17487/RFC9664
This document describes an EDNS(0) option that can be used between
DNS Update Requesters and authoritative DNS servers to include a
lifetime (lease duration) in a DNS Update or DNS Update Response,
allowing a server to garbage collect stale Resource Records that have
been added by DNS Updates if they are not renewed.
This document is a product of the Extensions for Scalable DNS Service Discovery Working Group of the IETF.
This is now a Proposed Standard.
STANDARDS TRACK: This document specifies an Internet Standards Track
protocol for the Internet community, and requests discussion and suggestions
for improvements. Please refer to the current edition of the Official
Internet Protocol Standards (https://www.rfc-editor.org/standards) for the
standardization state and status of this protocol. Distribution of this
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