x11vnc is a neat way to remote an existing X11 session to another machine. You can use a regular VNC client on the remote machine to interact with your Ubuntu Desktop.

Installation

Execute the following command to install x11vnc

sudo apt-get install x11vnc

Then, execute x11vnc thus

x11vnc

VNC Client

There are several VNC clients you can choose from but I prefer the TightVNC Viewer. Once installed, point the viewer to host_name:display_number or host_ip:display_number e.g. 192.168.0.2:0. The display number can be obtained from a terminal window on Ubuntu thus

echo $DISPLAY

Some neat features to try out

• Send keyboard commands like Alt+Tab or Ctrl+Alt+Del
• Copy to or paste from the remote machine