how to create a private "test." zone?

[Stephane Bortzmeyer]

On Sun, Mar 01, 2009 at 08:46:11PM +0000,
 Rui Lopes <rgl at ruilopes.com> wrote 
 a message of 168 lines which said:

> I did the delegation by
> adding the following RR in the "test." zone (in the Sun host):
> 
>     example         IN      NS      plesk

May be an error prevented the loading of the zone? Check the SOA
serial number, as published by this server, and check BIND log files.

[Because your setup and files seem OK.]