[161031] in North American Network Operators' Group

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Re: looking for terminology recommendations concerning non-rooted

daemon@ATHENA.MIT.EDU (Andrew Sullivan)
Fri Feb 22 17:27:34 2013

Date: Fri, 22 Feb 2013 17:27:21 -0500
From: Andrew Sullivan <asullivan@dyn.com>
To: nanog@nanog.org
In-Reply-To: <5127ECBA.40807@nic-naa.net>
Errors-To: nanog-bounces+nanog.discuss=bloom-picayune.mit.edu@nanog.org

On Fri, Feb 22, 2013 at 02:10:02PM -0800, Eric Brunner-Williams wrote:

> just keep in mind that while "." ought to be a label separator, the
> utc's bidi algorithm allows the directionality of a label to "leak"
> across the "period" character, where it is not a terminal character.

Yes, this is true, although that's at yet another layer _above_ the
DNS presentation layer.  That is, the . we are talking about is in the
DNS presentation layer, which ought only ever to contain A-labels
(xn--somethinghere) and not U-labels.  (Someone suggested to me that
the motto for IDNA ought to be, "Insufficient complication can always
be solved by another layer of misdirection.")

A 

-- 
Andrew Sullivan
Dyn, Inc.
asullivan@dyn.com
v: +1 603 663 0448


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