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The initial versions of the XRDP project relied on a local VNC server installation that had to be present alongside the program, in order to relay the graphics and controls between the user and the server [7] (known as the "VNC forwarding mode"). However, this mode is currently not recommended to use anymore, due to its slow performance.
However, it is possible to use Xvnc or Xvfb to create a 'virtual' extra display, and have x11vnc connect to it, enabling X-11 access to headless servers. [5] x11vnc has security features that allows the user to set an access password or to use Unix usernames and passwords. It also has options for connection via a secure SSL link. [4]
File transfer: the software allows the user to transfer files between the local and remote computers, from within the client software's user interface. Audio support: the remote control software transfers audio signals across the network and plays the audio through the speakers attached to the local computer. For example, music playback ...
The user-based access methods work by authorizing specific users to connect to the server. When a client establishes a connection to a server, it has to prove being controlled by an authorized user. The two methods based on authenticating users using networked identity management systems are SUN-DES-1 and MIT-KERBEROS-5 .
In addition to the Microsoft-created Remote Desktop Services, open-source RDP servers on Unix include FreeRDP (see above), ogon project and xrdp. The Windows Remote Desktop Connection client can be used to connect to such a server. There is also Azure Virtual Desktop which makes use of RDP and is a part of the Microsoft Azure platform.
Wayland is a communication protocol that specifies the communication between a display server and its clients, as well as a C library implementation of that protocol. [9] A display server using the Wayland protocol is called a Wayland compositor, because it additionally performs the task of a compositing window manager.
Workarounds like x11vnc (VNC :0 viewers), Xpra's shadow mode and NX's nxagent shadow mode also exist to make the current X-server screen available. This ability allows the user interface (mouse, keyboard, monitor) of a running application to be switched from one location to another without stopping and restarting the application.
In all versions above 10.2, the text is superimposed on a standby symbol and is not full screen. Debugging information is saved in NVRAM and written to a log file on reboot. In 10.7 there is a feature to automatically restart after a kernel panic.