![]() ![]() The users then work on the server's desktop, alone or in parallel with other users, as if sitting directly in front of it.īoth software categories overlap when it comes to their functionality. Newer software, for example, makes it possible to simultaneously chat, send files, make calls over the Internet, and transfer videos. This article looks at the way long-distance relationships work with RealVNC, TightVNC, TeamViewer, AnyDesk, NX, and its free offshoot X2Go. We will be comparing functions and performance and considering the technology behind them. ![]() ![]() RealVNC and TightVNC are part of a group of remote desktop applications that rely on VNC. The basic technology behind VNC is the platform-independent remote framebuffer protocol (RFB). It works at framebuffer level, so it functions for window-based systems like Windows, OS X, or X11, but also makes cross-platform connections possible. RFB transfers the screen content as bitmaps, where the server only responds to a client-side FramebufferUpdateRequest with the changes since the last request ( FrameBufferUpdate). ![]() In contrast with the members of the VNC camp, the remote support tools TeamViewer and AnyDesk use proprietary protocols. NoMachine's NX and the free implementation X2Go fall under the category of terminal servers, though they fulfill the purpose of a remote desktop program. Their advantage over VNC lies in their complete encryption of data traffic. In contrast with some VNC applications, their users do not have to manually set up port forwarding if the remote machine is not part of the local network. Sales reps can connect with company branches over the protocol. Together, they beat the problem of port forwarding at the same time.īecause not all VNC variants encrypt, the admins often secure these sessions with the help of secure shell (SSH) tunnels. Companies with a number of field staff can save money thanks to free VNC clients, because tools like TeamViewer or AnyDesk charge fees for commercial use. At the same time, the data exchange remains under their own control. The admin also controls servers that require a graphical interface via VNC. The hypervisor VirtualBox offers VNC to operate a virtual machine without display (headless). The remote desktop application RealVNC ( Figure 1) uses the RFB protocol. ![]()
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