vnc stands for Virtual Network Computing. This is a protocol originally developed vnc by the research laboratories of Olivetti and Oracle, and,
later, developed by AT & T, which displays the desktop of a remote computer and interact with it.

The protocol has, in fact, the function of carrying the graphical interface from a computer, called server,
a computer that has installed a component called the viewer (viewer).

In support of their view of the remote desktop there is the possibility of interaction via the local keyboard and mouse and,
in many vnc programs, even to exchange files, interact with chat.

vnc programs I mentioned, as from the original product, now abandoned by AT & T, vnc has developed several programs, some commercial,
some open source, generally similar characteristics.

The beauty of vnc is a product to be “cross platform”, so you can use on different operating systems (Windows, Linux, Unix, MacOS). different.

The basic protocol uses TCP port 5900 and, in the case of multiple servers on the same IP, other neighbors, and port 5800, and adjacent,
if you wanted to use a Java viewer that allows remote control from a browser.

Check the full detail here VNC for remote management of computers