[149716] in North American Network Operators' Group
Re: Dear RIPE: Please don't encourage phishing
daemon@ATHENA.MIT.EDU (Jimmy Hess)
Mon Feb 13 00:48:01 2012
In-Reply-To: <m2lio7mgzt.wl%randy@psg.com>
Date: Sun, 12 Feb 2012 23:47:11 -0600
From: Jimmy Hess <mysidia@gmail.com>
To: Randy Bush <randy@psg.com>
Cc: North American Network Operators' Group <nanog@nanog.org>
Errors-To: nanog-bounces+nanog.discuss=bloom-picayune.mit.edu@nanog.org
On Sun, Feb 12, 2012 at 11:36 PM, Randy Bush <randy@psg.com> wrote:
>> DNS is case-insensitive when you are talking about 7-bit ASCII
> < pedantry >
> dns itself is purely eight bit transparent. =A0one can even have a dot as
> a non-separator. =A0p.r.c could be a tld. =A0it's strictly length/value.
That's true, but there is no standard character representation for
octet values 128 - 255.
If you use them in a DNS record, they are just binary values that
don't refer to a specific printable symbol.
Only octets in the range from 65 to 90 (uppercase) and 977 to 122
(lowercase)
have a case equivalent for DNS resolution.
And IDN uses 7-bit ASCII DNS records.
--
-JH
