Teamviewer, One of the best remote control application. It lets you remotely access and troubleshoot PCs over the Internet / LAN. Team Viewer provides easy, fast and secure remote access to Linux, Windows PCs, and Macs. Free for personal use but have to pay for commercial use, though you can use the trial version there.
There are two ways to install it, either in graphics mode or in terminal mode. Both are explained down here.