Instructions for tunneling vnc over ssh using PuTTY In the PuTTY Tunnels category, set the the source port to 59xx where xx is the vnc display number (i.e. add 5900 to the display number) Set the destination to localhost:59xx (here 'localhost' is a literal string and it refers to the windows machine, not the machine running vncserver) Select the "Local" radio button Click on "Add" to add the tunnel to the "Forwarded ports" list Open the ssh session and from the system menu (upper left corner) verify that the event log shows the tunnel was set up Open vncviewer to localhost:59xx