Business web hosting - Chapter 4 . Learning Basic Administration 139 File
Chapter 4 . Learning Basic Administration 139 File Description termcap Lists definitions for character terminals, so that character-based applications know what features are supported by a given terminal. Graphical terminals and applications have made this file obsolete to most people. (Termcap was the BSD UNIX way of storing terminal information; UNIX System V used definitions in /usr/share/terminfo files.) xinetd.conf Contains simple configuration information used by the xinetd daemon process. This file mostly points to the /etc/xinetd.d directory for information about individual services. (Some systems use the inetd.conf file and the inetd daemon instead.) Another directory, /etc/X11, includes subdirectories that each contain system-wide configuration files used by X and different X window managers available for Linux. The xorg.conf file (which makes your computer and monitor usable with X) and configuration directories containing files used by xdm and xinit to start X are in here. Directories relating to window managers contain files that include the default values that a user will get if that user starts one of these window managers on your system. Window managers that may have system-wide configuration files in these directories include GNOME (gdm) and Twm (twm). Some files and directories in /etc/X11 are linked to locations in the /usr/X11R6 directory. Administrative Log Files One of the things that Linux does well is keep track of itself. This is a good thing, when you consider how much is going on in a complex operating system. Sometimes you are trying to get a new facility to work and it fails without giving you the foggiest reason why. Other times you want to monitor your system to see if people are trying to access your computer illegally. In any of those cases, you can use log files to help track down the problem. The main utilities for logging error and debugging messages for Linux are the syslogd and klogd daemons. General system logging is done by syslogd. Logging that is specific to kernel activity is done by klogd. Logging is done according to information in the /etc/syslog.conf file. Messages are typically directed to log files that are usually in the /var/log directory. Here are a few common log files: . boot.log Contains boot messages about services as they start up. . messages Contains many general informational messages about the system. . secure Contains security-related messages, such as login activity. . XFree86.0.log or Xorg.0.log Depending on which X server you are using, contains messages about your video card, mouse, and monitor configuration. Note
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