Ondřej Surý wrote:
Thanks, now I understand what you are asking for;), so what about:
“No existing Internet Standard uses these Resource Records and there no
know practical usage in the public Internet.”
i think this is overbroad. if we aren't also sure that it's not being
used in some private network somewhere, we should not tell implementers
to remove support. a lot of private networks use internet protocols and
implementations to support their local apps and users.
mf, mg, mb, and mail1 are i think still in use on some as/400 intranets.
when i removed UID and GID from BIND it was because there was no RFC,
not because i wasn't fully aware of some older athena implementations
still in use at that time which used these instead of TXT.
ideally we'd put out an extended call for comments about anything we'd
like to remove if it ever worked to anyone's knowledge. if it never
worked, like extended label types in EDNS, they can just be removed.
this is how we handled IQUERY deprecation and i think it went well.
--
P Vixie
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