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Re: Alternative dereference behavior

From: Henry S. Thompson <ht@inf.ed.ac.uk>
Date: Mon, 28 Sep 2009 18:16:29 +0100
To: Jonathan Rees <jar@creativecommons.org>
Cc: www-tag@w3.org
Message-ID: <f5bvdj37zwy.fsf@hildegard.inf.ed.ac.uk>
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To add to your citations from "the canon":

RFC 3986, section 3.2.2. Host

  "This specification does not mandate a particular registered name
   lookup technology and therefore does not restrict the syntax of
   reg-name beyond what is necessary for interoperability.  Instead,
   it delegates the issue of registered name syntax conformance to the
   operating system of each application performing URI resolution, and
   that operating system decides what it will allow for the purpose of
   host identification.  A URI resolution implementation might use
   DNS, host tables, yellow pages, NetInfo, WINS, or any other system
   for lookup of registered names.  However, a globally scoped naming
   system, such as DNS fully qualified domain names, is necessary for
   URIs intended to have global scope.  URI producers should use names
   that conform to the DNS syntax, even when use of DNS is not
   immediately apparent, and should limit these names to no more than
   255 characters in length."

ht
- -- 
       Henry S. Thompson, School of Informatics, University of Edinburgh
                         Half-time member of W3C Team
      10 Crichton Street, Edinburgh EH8 9AB, SCOTLAND -- (44) 131 650-4440
                Fax: (44) 131 651-1426, e-mail: ht@inf.ed.ac.uk
                       URL: http://www.ltg.ed.ac.uk/~ht/
[mail really from me _always_ has this .sig -- mail without it is forged spam]
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Received on Monday, 28 September 2009 17:17:22 GMT

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