Stephane Bortzmeyer wrote:

>On Mon, Jun 02, 2003 at 01:09:13PM +0900,
>  henry nelson <netb@irm.nara.kindai.ac.jp> wrote
>  a message of 14 lines which said:
>
>  > I'd like to use domain names to identify what/where the network is, but
>>  I'd rather not use things like .edu or .ac.xx (xx = some country's
>>  abbreviation).  Are there suffixes to domain names that are reserved for
>>  internal networks
>
>Partially, see RFC 2606 :
>
>    To safely satisfy these needs, four domain names are reserved as
>    listed and described below.
>
>                    .test
>                 .example
>                 .invalid
>               .localhost
>
>       ".test" is recommended for use in testing of current or new DNS
>       related code.
>
>       ".example" is recommended for use in documentation or as examples.
>
>       ".invalid" is intended for use in online construction of domain
>       names that are sure to be invalid and which it is obvious at a
>       glance are invalid.
>
>       The ".localhost" TLD has traditionally been statically defined in
>       host DNS implementations as having an A record pointing to the
>       loop back IP address and is reserved for such use.  Any other use
>       would conflict with widely deployed code which assumes this use.

I usually use ".lan" - that makes it pretty obvious.

Dan Killoran