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Re: [DNSOP] I-D Action: draft-ietf-dnsop-domain-verification-techniques-02.txt

Paul Wouters <paul@nohats.ca> Tue, 18 July 2023 12:24 UTC

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From: Paul Wouters <paul@nohats.ca>
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Date: Tue, 18 Jul 2023 08:24:32 -0400
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To: Paul Vixie <paul=40redbarn.org@dmarc.ietf.org>
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Subject: Re: [DNSOP] I-D Action: draft-ietf-dnsop-domain-verification-techniques-02.txt
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On Jul 17, 2023, at 22:50, Paul Vixie <paul=40redbarn.org@dmarc.ietf.org> wrote:
> 
> 
> 
>> Agreed, but that horse had already left the barn when we published the first SPF RFC 4408.
> RFC 4408 was folly. TXT in a subdomain (RFC 5507 s3.2) would suit domain verification well (wildcards aren't a factor) and would in no way be precluded by the SPF design.

The IETF did make a mistake there for sure.

> perhaps a sub-domain under ._wellknown.$apex, to match current style in the w3c world.

In general, DNS records have used just an underscore. As this space is still less automated and involves more humans and bad GUIs, i think it sticking to just an _ is better. (The web never had _ as a special/reserved character either unlike DNS)

Eg see _openpgpkey, _smime, DANE records, etc.

Paul


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