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The file xorg.conf is a file used for configuring the X.Org Server. While typically located in /etc/X11/xorg.conf , its location may vary across operating system distributions (See manual, "man xorg.conf" for details and further possible locations).
In the first method, the client simply sends the cookie when requested to authenticate. In the second method, a secret key is also stored in the .Xauthority file. The client creates a string by concatenating the current time, a transport-dependent identifier, and the cookie, encrypts the resulting string, and sends it to the server.
X.Org Server is the free and open-source implementation of the X Window System (X11) display server stewarded by the X.Org Foundation.. Implementations of the client-side X Window System protocol exist in the form of X11 libraries, which serve as helpful APIs for communicating with the X server. [4]
In X, the server runs on the user's computer, while the clients may run on remote machines. This terminology reverses the common notion of client–server systems, where the client normally runs on the user's local computer and the server runs on the remote computer. The X Window terminology takes the perspective that the X Window program is at ...
As a result, a client can itself be a session manager of other clients. For example, a mail client can start a text editor for the sake of writing an email, and behave as a session manager with respect to the editor. This way, if the mail client is closed and then restarted again, it can restore the state of the text editor.
A client and server can even communicate securely over the Internet by tunneling the connection over an encrypted network session. An X client itself may emulate an X server by providing display services to other clients. This is known as "X nesting". Open-source clients such as Xnest and Xephyr support such X nesting. [5]
LightDM is a free and open-source X display manager that aims to be lightweight, fast, extensible and multi-desktop. [5] It can use various front-ends to draw the user interface, [ 6 ] also called Greeters . [ 7 ]
The X server may connect to a display manager running on another computer, starting a session which may comprise a variety of programs running on that other computer. Relative to X server the XDM is a client. See client–server separation in X11. The XDMCP protocol mandates that the X server starts autonomously and connects to the display manager.