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RFC 8764
Title: Apple's DNS Long-Lived Queries Protocol
Author: S. Cheshire,
M. Krochmal
Status: Informational
Stream: Independent
Date: June 2020
Mailbox: [email protected],
[email protected]
Pages: 20
Updates/Obsoletes/SeeAlso: None
I-D Tag: draft-sekar-dns-llq-06.txt
URL: https://www.rfc-editor.org/info/rfc8764
DOI: 10.17487/RFC8764
Apple's DNS Long-Lived Queries (LLQ) is a mechanism for extending the
DNS protocol to support change notification, thus allowing clients to
learn about changes to DNS data without polling the server. From
2005 onwards, LLQ was implemented in Apple products including Mac OS
X, Bonjour for Windows, and AirPort wireless base stations. In 2020,
the LLQ protocol was superseded by the IETF Standards Track RFC 8765,
"DNS Push Notifications", which builds on experience gained with the
LLQ protocol to create a superior replacement.
The existing LLQ protocol deployed and used from 2005 to 2020 is
documented here to give background regarding the operational
experience that informed the development of DNS Push Notifications,
and to help facilitate a smooth transition from LLQ to DNS Push
Notifications.
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