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RFC 9619
Title: In the DNS, QDCOUNT Is (Usually) One
Author: R. Bellis,
J. Abley
Status: Standards Track
Stream: IETF
Date: July 2024
Mailbox: r...@isc.org,
jab...@cloudflare.com
Pages: 7
Updates: RFC 1035
I-D Tag: draft-ietf-dnsop-qdcount-is-one-04.txt
URL: https://www.rfc-editor.org/info/rfc9619
DOI: 10.17487/RFC9619
This document updates RFC 1035 by constraining the allowed value of
the QDCOUNT parameter in DNS messages with OPCODE = 0 (QUERY) to a
maximum of one, and it specifies the required behavior when values
that are not allowed are encountered.
This document is a product of the Domain Name System Operations 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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