I'm having a problem with X -query - I can't get this to work at all.

If I knoppix-installer all 25 PCs in my classroom, I was thinking of adding X -query to /etc/rc.d/rc.local to automatically have my student's X-server boot to the "server's" X-server so they go directly to a login screen with their userids and /home dirs. Is there something else I have to initialize for this to work?

BTW, do I need to update /etc/hosts for X -query to work if I'm using raw ip addresses? What about X -broadcast?

Sorry I'm so clueless wrt setting up a LAN....

TIA,