xvnc4viewer binary package in Ubuntu Precise i386

 VNC stands for Virtual Network Computing. It is, in essence, a remote
 display system which allows you to view a computing `desktop' environment
 not only on the machine where it is running, but from anywhere on the
 Internet and from a wide variety of machine architectures.
 .
 It is implemented in a client/server model. This package provides a vncclient
 for X, with this you can connect to a vncserver somewhere in the network
 and display its content in a window. There are vncservers available for other
 operating systems.

Source package