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How does VNC technology work?

VNC uses the RFB protocol to transmit screen pixel data from one computer to another over a network, and send control events in return. It’s a simple but powerful protocol invented by RealVNC.

You must deploy a VNC Server app to the computer you want to control, and a VNC Viewer app to the computer or mobile device you’re sitting in front of, and want to control from. Download VNC Connect.

VNC Server captures the desktop of the computer in real-time and sends it to VNC Viewer for display. VNC Viewer gathers your input (mouse, keyboard, or touch) and sends it for VNC Server to inject and actually achieve remote control. Learn how to get connected.