[[ Sorry for cross-posting. ]] All, in July the IAB has posted an I-D on "IAB Thoughts on Encodings for Internationalized Domain Names", draft-iab-idn-encoding-00, and solicited feedback.
That draft is closely related to the DNS related WGs as well. After very quickly skimming over that memo, it looks like the description of DNS labels and the resulting restrictions is incomplete in several respect, for instance: - No distinction is made between the 'normal' labels from STD 13 and other label types (currently there aren't other label types supported by active standards, but the future might change that). - No mention is made of case-insensitive treatment of DNS labels of standard type in resolvers and authorities. - No mention is made of the 0x20 hack, the deployment of which (be it standardized or not) will prohibit future deviation from the ASCII-only case-insensitive label regime we have, e.g. when potentially allowing full UTF-8 or UTF-16. - The impact of potential normalization needs (as an extension of case-insensitive comparison of ASCII labels to Unicode) of authoritative server and recursive resolver behavior is not discussed. I got the impression that the DNS related text in this IAB draft might deserve detailed review from DNS experts -- both on dnsop and namedroppers, but I have not found any discussion on that memo. Kind regards, Alfred. -- +------------------------+--------------------------------------------+ | TR-Sys Alfred Hoenes | Alfred Hoenes Dipl.-Math., Dipl.-Phys. | | Gerlinger Strasse 12 | Phone: (+49)7156/9635-0, Fax: -18 | | D-71254 Ditzingen | E-Mail: a...@tr-sys.de | +------------------------+--------------------------------------------+ _______________________________________________ DNSOP mailing list DNSOP@ietf.org https://www.ietf.org/mailman/listinfo/dnsop
