On Thu, 2 May 2024, Scott Morizot wrote:
On Thu, May 2, 2024 at 7:32 AM John R Levine <jo...@taugh.com> wrote:

MUST NOT is advice on how to interoperate, not on how to write software
tools.  It's up to the zone operator to follow the advice, not to the tool
provider to hold them hostage.


??? RFC 8624 is explicitly guidance to implementers not  operators. The
"MUST NOT" means MUST NOT implement in a conforming implementation of
either signing or validation software. That's not an opinion. It's what the
text says.

The word "software" does not appear in RFC 8624. I think it is evident from the text that the implementers are the people using DNS software and signing the zones.

Ondřej and Paul wrote the RFC so perhaps they can tell us what they meant.

R's,
John

PS: I don't think there is much practical difference between the NOT RECOMMENDED in 8624 and a draft that says MUST NOT to signers, so I would also be perfectly happy to leave things as is and abandon the draft.

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