Bug#105364: installer allows user to insert underscores in the hostname
On Mon, Jul 23, 2001 at 12:54:31PM +0200, Kjetil Torgrim Homme wrote:
> Matt Kraai <kraai@debian.org> writes:
> > You mentioned a WIP which would allow non-ASCII characters in the
> > hostname. Can you please send me a pointer to this document so that
> > I can update the boot-floppies to comply with it?
>
> This is the website of the IETF WG:
> http://www.i-d-n.net/
>
> This is a good summary of what they have set out to do:
> http://www.ietf.org/internet-drafts/draft-ietf-idn-requirements-08.txt
>
> It's very early, yet. But a few things are reasonably clear. They'll
> use Unicode, they just haven't decided on the encoding. That is, all
> characters which aren't US-ASCII will probably be added to the list of
> allowed characters.
I don't think so. According to [1], Appendix F, there are quite a
few prohibited non-ASCII code points. There are also some
normalization rules. I'm not sure if the normalizations should be
performed in dbootstrap or in some lower layer, however.
> The limit of 63 octets per name component
> probably won't change, but notice that the number of characters will
> be less, depending on the encoding.
>
> One thing: It would be good to disallow the use of ASCII Compatible
> Encoding-prefixes. They look like "xx--", where x is an arbitrary
> letter.
I've never seen these before, this being my first foray into
internationalization. I'll keep this in mind, however.
Will the input be encoded in UTF-8?
Matt
1. http://www.ietf.org/internet-drafts/draft-ietf-idn-nameprep-04.txt
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