X Window System core protocol: Difference between revisions

Revision as of 08:26, 14 March 2020

Revision as of 20:49, 2 April 2020

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[[File:X client server example.svg|frame|In this example, the X server takes input from a keyboard and mouse and displays to a screen. A [[web browser]] and a [[terminal emulator]] run on the user's workstation, and a terminal emulator runs on a remote server but under the control of the user's machine. Note that the remote application runs just as it would locally.]]

Communication between server and clients is done by exchanging packets over a [[channelcommunication (communications)channel|channel]]. The connection is established by the client (how the client is started is not specified in the protocol). The client also sends the first packet, containing the [[byte order]] to be used and information about the version of the protocol and the kind of authentication the client expects the server to use. The server answers by sending back a packet stating the acceptance or refusal of the connection, or with a request for a further [[authentication]]. If the connection is accepted, the acceptance packet contains data for the client to use in the subsequent interaction with the server.

[[Image:Xcore-overview.svg|thumb|200px|An example interaction between a client and a server.]]