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| X Server and Screen Geometry |
X Server and Screen Geometry
An X server starts up and “takes over” the bit-mapped display on a computer system. This may happen automatically when a user logs in, or it may happen when the user executes a command to do so, depending on the implementation.
Usually, at the time the X server stats, one or tow X clients are also stated. X Clients are programs that will communicate with one or more X servers in order to communicate with a user. Some other program must be started that will allow the user access to the system.
Security an Authorization related to X window
Your network could lead to security problems by the way of X windows. The I/O to an X server is just that- input and output. Write access to an X server also gives you the ability to query that system for a current copy of the display or even keyboard input. Because of this, the X Windows System has a certain amount of security built into the X server. It isn’t highly rated security, but it is enough to keep the casual snoop from gaining unauthorized access. By default, the X sever running on any computer system allows only X clients on that same system to talk to it. Te X server does not accept connections from “foreign” X clients without knowing who they are.
What is Screen Geometry
The lay out of screen is called geometry. A bit-mapped display has a certain size measured in pixels-the dots on a display that can be set to “on” or “off” (white or black) or to some color value. A small screen might be 600 x 480 (a typical low-resolution PC monitor). A larger screen might to be 1280 x 100 pixels, or even larger for very high resolution graphics screens.more detailes, please visit:
