In message <_A3398@delegate-en.ML_> on 07/14/06(06:58:35)
you "Bill Burdick" <piigqbdyi-iafv4ft4cqnw.ml@delegate.org> wrote:
 |Oh, ok -- I didn't know that was not really a legal hostname!  It's not my
 |host, it just has some info about Cellular Automata that I wanted to read
 |:).

I'm not sure whether or not it is completely prohibitted to use it in
a hostname in any context.
But at least it must not be used in a URL as the specification defines:

<URL:http://www.ietf.org/rfc/rfc1738.txt>
>
>; URL schemeparts for ip based protocols:
>
>ip-schemepart  = "//" login [ "/" urlpath ]
>
>login          = [ user [ ":" password ] "@" ] hostport
>hostport       = host [ ":" port ]
>host           = hostname | hostnumber
>hostname       = *[ domainlabel "." ] toplabel
>domainlabel    = alphadigit | alphadigit *[ alphadigit | "-" ] alphadigit
>toplabel       = alpha | alpha *[ alphadigit | "-" ] alphadigit
>alphadigit     = alpha | digit

Cheers,
Yutaka
--
  9 9   Yutaka Sato <pfqcabdyi-iafv4ft4cqnw.ml@delegate.org> http://delegate.org/y.sato/
 ( ~ )  National Institute of Advanced Industrial Science and Technology
_<   >_ 1-1-4 Umezono, Tsukuba, Ibaraki, 305-8568 Japan
Do the more with the less -- B. Fuller