1. Download TightVNC and install it on your PC.
2. Launch TightVNC server.
3. SSH cse server: such as "williams"
4. Type : "vncserver"
You will see
Starting VNC server...
You will require a password to access your desktops.
Password:
Verify:
5: "New desktop is williams:6, waiting for connections..."
6: Run TightVnc viewer
Type : williams.cse.unsw.edu.au:6
Password :( the one you set previous )
7: X Desktop on your screen
8: To run desktop (Cse lab )
Xnest :1235 -once -geometry 1024x900 -query xylophone

Try sirius!!