How to find a file in a computer (using DHCP)

[leojau]

Hi,

I have a working system that is being expanded. Cuurrently the system is using only 1 (one) server and is being expanded to multiple servers.
I need these servers to be "plug and play". They will be identical. They need to operate through DHCP (new IP will be assigned every time it connects to the network).

My problem is:
* I need to develop a software that will identify all the active servers in a specified IP range.

I use Fedora Core 13 for the servers.
The servers have freenx running.

Is there an existing software that will do this job?
Can anyone give me some ideas?
I'm pretty newbie with Linux.

Thanks.