On Aug 23, 2022, at 5:52 PM, John Levine <jo...@taugh.com> wrote: > > It appears that Paul Hoffman <paul.hoff...@icann.org> said: >>>> This document uses ".alt" for the pseudo-TLD in the presentation >>>> format for the DNS, corresponding to a 0x03616c7400 suffix in DNS >>>> wire format. The presentation and on-the-wire formats for non-DNS >>>> protocols might be different. >>>> " >>>> >>>> I had to read this 3 times and I am still not sure what is important and >>>> what not. >>> >>> Doesn't this text also imply that the alt label is case-sensitive? >> >> <sigh> Yes. We have at least three options: >> >> 1) Pick one capitalization of "alt" and use the binary representation of >> that; for example "alt". >> >> 2) Pick two capitalizations of "alt" and use the binary representations of >> those; for example "alt" and "ALT". >> >> 3) Use all nine possible representations ("alt", "Alt", "ALt", ... "ALT") > > 4) Say in English prose that since the DNS ignores ASCII case > distinctions, all versions of .alt are excluded from the DNS, but it's > up to each non-DNS thing to choose which if any of the versions it > uses and it how it interprets them.
That feels best to me. --Paul Hoffman
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