Protocol Action: 'In the DNS, QDCOUNT is (usually) One' to Proposed Standard (draft-ietf-dnsop-qdcount-is-one-03.txt)

The IESG <iesg-secretary@ietf.org> Thu, 20 June 2024 17:28 UTC

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From: The IESG <iesg-secretary@ietf.org>
To: IETF-Announce <ietf-announce@ietf.org>
Subject: Protocol Action: 'In the DNS, QDCOUNT is (usually) One' to Proposed Standard (draft-ietf-dnsop-qdcount-is-one-03.txt)
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Message-ID: <171890449577.26575.18027413937171548289@ietfa.amsl.com>
Date: Thu, 20 Jun 2024 10:28:15 -0700
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CC: The IESG <iesg@ietf.org>, dnsop-chairs@ietf.org, dnsop@ietf.org, draft-ietf-dnsop-qdcount-is-one@ietf.org, rfc-editor@rfc-editor.org
Archived-At: <https://mailarchive.ietf.org/arch/msg/ietf-announce/bBVGPm_OBuhkIEq92qRyPm1S1JY>

The IESG has approved the following document:
- 'In the DNS, QDCOUNT is (usually) One'
(draft-ietf-dnsop-qdcount-is-one-03.txt) as Proposed Standard

This document is the product of the Domain Name System Operations Working
Group.

The IESG contact persons are Warren Kumari and Mahesh Jethanandani.

A URL of this Internet-Draft is:
https://datatracker.ietf.org/doc/draft-ietf-dnsop-qdcount-is-one/

Technical Summary

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 specifies the required behaviour when values that
are not allowed are encountered.

Working Group Summary

The draft has broad consensus, particularly in the sense that it was kept as
short as possible to address a specific point of ambiguity in the standard (RFC
1035). Specifically, RFC 1035 doesn't constrain QDCOUNT (query count) for a
query to be either 0 or 1, but other protocol constraints imply it and common
implementation practice does limit it.

There was some discussion in the WGLC about whether to change the title of the
document and whether to expand its scope to discuss DNS cookies (RFC 7873). In
both cases it seemed likely to add complexity for limited or no benefit.

Document Quality

The document addresses long-standing ambiguity in the spec in favor of making
the spec consistent with actual practice. This issue is fully addressed in the
document.

Personnel

Suzanne Woolf is DS.
Warren "Ace" Kumari is RAD!!!!!!!!!!!!!!!!11!1 (and easily amused...I have made this "joke" more that 80 times and it still makes me giggle...)

Protocol Action: 'In the DNS, QDCOUNT is (usually… The IESG