If you just want to use fl_teachertool remotely, I found that I did not need freenx. I have two servers sharing the load on my LTSP network. One of them (server2) is attached to a projector for demos and to display student work. The other (server1) runs a local web server. (Because of school-district policy, we are a stand-alone network, not attached to the Internet.) I log in to my teacher account on server2. When I want to use fl_teachertool, I start it locally, which brings up about half of the clients. Then I open a terminal and type the following: su - ssh -X server1 fl_teachertool & Voila. I get another fl_teachertool window with the other half of the clients. So that I don't have to authenticate every time, I copied the ssh key from server1 to server2. TODO: Put this into a script with an icon that will automatically open up both instances of fl_teachertool. Also, set it up so that I don't have to be root to make the remote fl_teachertool work. QUESTION: Am I correct in assuming that the security issue in fl_teachertool is minimized, because the teacher account is running on the server? A student hacker could view or take control of another student's machine, but not the teacher machine, right?