Professional web hosting - Chapter 3 . Getting into the Desktop 79
Chapter 3 . Getting into the Desktop 79 So chances are that you will see the login screen associated with KDE or GNOME (depending on which is the default on your Linux system). When Linux starts up, it enters into what is referred to as a run level or system state. Typically, a system set to start at run level 5 boots to a graphical login prompt. A system set to run level 3 boots to a text prompt. The run level is set by the initdefault line in the /etc/inittab file. Change the number on the initdefault line as you please between 3 and 5 (don t use other number unless you know what you are doing, and never use 0 or 6). Because graphical login screens are designed to be configurable, you often find that the distribution has its own logo or other graphical elements on the login screen. For example, Figure 3-1 shows a basic graphical login panel displayed by the kdm graphical display manager. Figure 3-1: A simple KDE display manager (kdm) login screen includes a clock, login name list, and a few menu selections. With Red Hat s Fedora Core Linux, the default login screen is based on the GNOME display manager (gdm). Figure 3-2 shows the Fedora Core graphical login screen. You can just enter your login (username) and password to start up your personal desktop environment. Your selected desktop environment KDE or GNOME comes up ready for you to use. Although the system defines a desktop environment by default, you can typically change desktop environments on those Linux systems, such as Fedora, that offer both KDE and GNOME. X display managers can enable you to do a lot more than just get to your desktop. Although different graphical login screens offer different options, here are some you may encounter: . Session Look for a Session button on the login screen (such as the one that comes with Fedora). From there, you can choose to start your login session with a GNOME, KDE, or Failsafe environment. (Failsafe simply opens a Terminal window so, presumably, you can make a quick fix to the system without starting up a whole desktop environment.) Note
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