Hi Peter,
On Aug 24, 2022, at 09:40, Peter Thomassen <[email protected]> wrote:
> On 8/23/22 18:37, Joe Abley wrote:
>> So your suggestion is that this document should specify behaviour for QNAMEs
>> whose final label is exactly "alt" but that names with different
>> capitalisation should be leaked to the DNS?
>
> Please don't put words in my mouth. :-)
Certainly wasn't doing that. I was just trying to point out some insane
implications in a gentle way.
> Names ending other than with the specified reserved label(s) would "leak"
> somewhere, just like typos (".allt") would. Typos aside, the question is what
> problem is getting solved by allowing various capitalizations.
Domain names are case-insensitive. Example.com is precisely the same name as
EXAMPLE.Com is precisely the same name as eXamPLE.cOM. These are not typos;
this is by design and, as a consequence, it's a fundamental assumption of users
and software that concern themselves with domain names.
That's a large installed base of assumptions; to a close approximately it's all
users of the internet and all software that makes use of it.
The largely unknown set of names we are talking about (reluctantly in my case)
under ALT are also domain names. If they weren't there would be no risk of
collisions, no conflict with the DNS and even less reason to have this
conversation than is evident here.
So the question is not whether to allow mixed capitalisation; the question is
why we would intentionally change a fundamental expectation of domain names to
accommodate names and resolution protocols that we largely don't have any
requirements for because with one notable exception they don't exist?
Joe
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