Hi Ted,

On 17 Jun 2025, at 18:45, Ted Lemon <[email protected]> wrote:

> This looks good.

Glad you like it!

> we'll do some A/AAAA queries to root, but presumably these will be negative 
> cached so it won't be a huge load?

Both certainly seem possible. This is the Wes-science placeholder that I 
alluded to, earlier. I don't actually know what he has found, yet, since I had 
to get on a plane.

> If this really is better, then we should consider also updating RFC6303, 
> RFC8375 and RFC9665, and also adding a similar delegation for .local. RFC6762 
> doesn't address this at all.

As currently written, this would not be applicable to .LOCAL or .ALT or .ONION 
or anything that acts as an anchor for non-DNS resolution protocols.

The thinking here was that (a) the resolution switch in those examples happens 
in or very close to the application, so there are other ways for applications 
to know those names exist and (b) those names really shouldn't exist in the DNS 
as well as those other name resolution protocols, kind of by definition, and 
introducing that kind of ambiguity would be a bit of a regression.

Quite possibly we have missed some potential benefit, though.


Joe

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