Lookup for reserved LDH labels
simon at josefsson.org
Thu Nov 8 10:24:26 CET 2012
Andrew Sullivan <ajs at anvilwalrusden.com> writes:
> On Wed, Nov 07, 2012 at 05:57:06PM +0100, Marcos Sanz wrote:
>> > What about instead, in 5.1,
>> > the following:
>> > If the string is an NR-LDH label, it proceeds directly to DNS Name
>> > Resolution (see Section 5.6).
>> though I find the text redundant, I am all for it if it helps as a
>> clarification for implementors.
> Note that this addition _would not_ solve the problem of an existing
> record of the form ab--cdef. Those are still restricted LDH labels,
> and aren't allowed.
What is an "restricted LDH label"? I can't find the definition of that
term in RFC 5890/5891.
More information about the Idna-update