How to install & configure VNC in Ubuntu - Remote Desktop in Ubuntu

Install X11VNC and vnc-java packages.

# sudo apt-get install x11vnc vnc-java

Run the terminal command

# x11vnc -forever -usepw -httpdir /usr/share/vnc-java/ -httpport 5800 -shared

When you run above command, system will prompt you to create password and the password will be kept in /home//.vnc

*PS:
-usepw : use password
-shared: will allow more than 1 user to remote