Two-Minute Drill

Here are some of the key points from the certification objectives in Chapter 14.

X with Clients and Servers

❑	The X server software manages the graphics display on the local computer, which includes your monitor/graphics adapter, keyboard, and mouse.
❑	You can configure the X server during the installation process. You can also configure or modify the configuration using the Red Hat Display Settings tool.
❑	The X server configuration is stored in the /etc/X11/xorg.conf file.

The X.org Server Configuration

❑	There are a variety of X.org server configuration files in the /etc/X11 directory.
❑	You can start X servers in multiple consoles.
❑	You can configure the X Window to boot directly into a GUI login manager, or start it from a text console.
❑	When you start the X Window, you can customize the process.

Tools for X.org Configuration

❑	The main X.org Server Configuration utility is the Red Hat Display Settings tool, which you can start in either the GUI or a text console with the system-config-display command.
❑	Other X.org command line tools are available, such as Xorg -configure and Xorg -probeonly.

Running Remote X Applications

❑	By default, X clients sends display output to the local computer.
❑	You can log into the remote client using the Secure Shell; if you log in with the -X or -Y switch, you can send remote X clients back to your local system.

Desktops and Window Managers

❑	The X Window System gives you a blank electronic canvas. The look and feel of a GUI is provided by the window manager and desktop.
❑	The two main desktop environments are GNOME and KDE.
❑	You can use switchdesk from a terminal window or the command line interface console to select your default desktop.