Beta Fl_TeacherTool for Edubuntu

Jim Kronebusch jim at
Wed Sep 5 16:56:06 BST 2007

Well, I gave it a whirl.  I can run TeacherTool and see a list of logged in users and
the ip of the terminal they are at.  However I can not view processes, monitor, control,
etc.  I assume I have missed a few things.  The only step from below I performed in the
client chroot is step 1 (I took the different links and emails and tried to put a full
list together in the order I did them), everything else was done on the server.  I have
not rebooted the server, only my test client.

Any tips on where things went wrong?

1. Setup x11vnc on clients:

sudo cp /etc/apt/sources.list /opt/ltsp/i386/etc/apt/sources.list
sudo chroot /opt/ltsp/i386
apt-get update
apt-get install x11vnc
vi /etc/rc.local
x11vnc -display :6 -forever -shared -bg

# I didn't have to do the following since I had already moved K99rc.local to get 
cd /etc/rc2.d
mv K99rc.local S99rc.local

2. Download fl-tt source and install


apt-get install build-essential
apt-get install libfltk1.1 libfltk1.1-dev
apt-get install libxpm-dev     for pixmaps
apt-get install vnc4server
apt-get install xtightvncviewer
apt-get install zlib1g-dev
apt-get install libjpeg-dev
apt-get install xscreensaver

tar -zxvf fl_teachertool-041-ltsp5.tar.gz
cd Fl_TeacherTool-0.41
sudo make && make install

sudo chmod +x /etc/X11/xinit/xinitrc

sudo vim /etc/X11/app-defaults/XScreenSaver

*mode:                  random

replace the word "random" with "blank" on the line that matched the above (no quotes)

3. Download and install vnc-reflector


tar -zxvf vnc_reflector-1.2.4.tar.gz
cd vnc_reflector
sudo make
sudo cp vncreflector /usr/bin

4. Create vncuser on server and .vnc tree

sudo adduser vncuser
answer user options and set password

5. Logout and login with new vncuser, then run vnc4server 


Kill vnc4server

vim /home/vncuser/.vnc/xstartup

Uncomment the following 2 lines:
exec /etc/X11/xinit/xinitrc

Logout vncuser

6. Set vnc password and copy .vnc

sudo /usr/bin/vncpasswd
sudo cp -a /home/vncuser/.vnc /opt/ltsp/i386/root/

7. Run fl_teachertool and play away

sudo fl_teachertool

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