[Hampshire] Apache Server based file search

Hi,

I have a file server with lots of files on it.
The same server also runs apache.
I want to have a web page on the apache server that provides an
interactive file search feature to users.
E.g. The user puts some of the filename into a "search" box, and the
server returns the answer.
Are there any tools out there to do this task, saving me reinventing the wheel?

James