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Re: Dear RIPE: Please don't encourage phishing
From: Jimmy Hess <mysidia () gmail com>
Date: Sun, 12 Feb 2012 23:47:11 -0600

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.  one can even have a dot as
a non-separator.  p.r.c could be a tld.  it'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


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