TigerVNC

TigerVNC is a free and open-source (GPL) program that includes a VNC viewer and server components to manage a remote computer. On Windows, the viewer and the server (WinVNC) come as separate installers, and the project notes that the Windows server is currently unmaintained and may not work correctly with Fast User Switching or Remote Desktop. Once the server is installed and running, your PC is ready for client connections and remote management. To go to the section with server parameters, use the corresponding item of the context menu of the TigerVNC icon in the notification panel. In the Settings window, you can configure authentication and encryption, set permissions for clients, and so on.

If you want to use the current computer to connect to others (running TigerVNC or another VNC server), use the TigerVNC Viewer tool. You can find it in the folder with the installed program. To establish a connection, simply enter the server address and password (if any). The quality of the transmitted TigerVNC image is quite acceptable and directly depends on the speed of the connection between the server and client parts of the network. By default, the viewer selects the encoding automatically, but you can choose Tight, ZRLE, Hextile, H.264 or Raw yourself, set the color level, a custom compression level and the JPEG quality. The Tight encoding is accelerated by the libjpeg-turbo codec. In general, it will be difficult for a novice user to understand the viewer options window.

Among the interesting features of the viewer we can highlight the view-only mode, in which only the image from the remote desktop is shown, while mouse and keyboard input is not sent to the server. The viewer also supports full-screen mode on one or several monitors, clipboard sharing in both directions, and TLS or RSA-AES encryption.

TigerVNC allows for robust remote computer management with fast Tight encoding, TLS encryption and detailed control over quality and security settings.