VNC

We are using RealVNC 3.3.7 (http://www.realvnc.com). By default, VNC uses port 5900 + [display number]. Similar to X, the display number is chosen automatically by VNC upon startup, but for the tests we will force it to use display 1. Therefore, the Ethereal filter should be set up for port 5801.

• To start a VNC session, do the following:
  1. From the thinclient connect to the thinserver using ssh:

     testbed@thinclient1:~$ ssh thinserv
     

  2. At the thinserver run:

     testbed@cluster08:~$ vncserver -depth 24 :1
     
     New 'X' desktop is cluster08:1
     
     Starting applications specified in /home/testbed/.vnc/xstartup
     Log file is /home/testbed/.vnc/cluster08:1.log
     

     At this point the vncserver is running on display 1, listening on port 5801, and running at color depth 24.

  3. At the thinclient run:

     testbed@thinclient1:~$ vncviewer thinserv:1
     

     After some informational output, it should ask for a password, which is the same as testbed's password, and then a window should open with the contents of the server's desktop. At this point the session is running, and everything is ready to begin the benchmark (see section 4).

• To shutdown a VNC session do the following:
  1. At the thinclient, close the vncviewer window.
  2. At the thinserver, run:

     testbed@cluster08:~$ vncserver -kill :1
     Killing Xvnc process ID 22475
     

     The process ID may change, but the output should look similar. If it complains that it can't find the process, the server may not be running, or you may have to kill it by hand.