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[idn] Name forms in the requirements doc
- To: idn@ops.ietf.org
- Subject: [idn] Name forms in the requirements doc
- From: Paul Hoffman / IMC <phoffman@imc.org>
- Date: Fri, 16 Jun 2000 15:16:05 -0700
- Delivery-date: Fri, 16 Jun 2000 15:17:39 -0700
- Envelope-to: idn-data@psg.com
The last paragraph of section 1.2 of the requirements document says:
>The form specified for most protocols using the DNS is a limited form of
>the master file format domain name. This limited form is defined in
>[RFC1034] Section 3.5 and [RFC1123]. In most implementations of
>applications today, domain names in the Internet have been limited to
>the much more restricted forms used, e.g., in email. Those names are
>limited to the ASCII upper and lower-case characters (interpreted in a
>case-independent fashion), the digits, and the hyphen, with the further
>restrictions that a name may not consist entirely of digits and that a
>hyphen cannot occur at the beginning or end of a component or following
>another hyphen.
Where did the restrictions of "may not consist entirely of digits"
and "a hyphen cannot occur...following another hyphen" come from? I
cannot find those in 1034 or 1123.
--Paul Hoffman, Director
--Internet Mail Consortium