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RFC 6912
Title: Principles for Unicode Code Point
Inclusion in Labels in the DNS
Author: A. Sullivan, D. Thaler,
J. Klensin, O. Kolkman
Status: Informational
Stream: IAB
Date: April 2013
Mailbox: asullivan@dyn.com,
dthaler@microsoft.com,
john-ietf@jck.com,
olaf@NLnetLabs.nl
Pages: 12
Characters: 27078
Updates/Obsoletes/SeeAlso: None
I-D Tag: draft-iab-dns-zone-codepoint-pples-02.txt
URL: http://www.rfc-editor.org/rfc/rfc6912.txt
Internationalized Domain Names in Applications (IDNA) makes available
to DNS zone administrators a very wide range of Unicode code points.
Most operators of zones should probably not permit registration of
U-labels using the entire range. This is especially true of zones
that accept registrations across organizational boundaries, such as
top-level domains and, most importantly, the root. It is
unfortunately not possible to generate algorithms to determine
whether permitting a code point presents a low risk. This memo
presents a set of principles that can be used to guide the decision
of whether a Unicode code point may be wisely included in the
repertoire of permissible code points in a U-label in a zone.
This document is a product of the Internet Architecture Board.
INFORMATIONAL: This memo provides information for the Internet community.
It does not specify an Internet standard of any kind. Distribution of
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