Screen Sharing can be enabled from the Sharing Preference pane. It’s turned off by default, but can easily be enabled and disabled as needed. The Mac, whose screen you wish to view and control on your local network, needs to have its screen sharing system enabled. VNC allows the full graphical interface of the host computer to be displayed and controlled by a remote computer. Screen sharing is accomplished through the use of VNC (Virtual Network Computing), a network protocol for remotely controlling another computer. Screen sharing can be a great help in remotely troubleshooting a problem, whether it’s a Mac on your local network or a Mac that’s far away from you. Essentially, screen sharing allows someone to be virtually seated next to you, looking over your shoulder, or even taking control of your keyboard, mouse, or trackpad. Screen sharing is the process of allowing someone else to see what’s on your screen open, close, and move files and windows around open apps and restart the Mac. Then you can lend them a helping hand from just about anywhere in the world. You just need to turn them on and have your friend or relative grant you access. Actually, you can, and the apps and services you need for remote access are included with your Mac.
