Learning Red Hat Linux, Third Edition

Appendix B. Principal Linux Files

Table B-1 describes the principal Linux files. You can use it, for example, to help you locate configuration files quickly.

Table B-1. Principal Linux files

File(s)	Description
/boot/grub/grub.conf	GRUB configuration file
/boot/module-info-*	Module information for the Linux kernel
/boot/System.map-*	Map of the Linux kernel
/boot/vmlinuz-*	Linux kernel
/etc/aliases	Mail aliases
/etc/at.deny	User IDs of users forbidden to use the at command
/etc/auto.master	Configuration file for the autofs daemon, which automatically mounts filesystems
/etc/auto.misc	Automounter map file
/etc/bashrc	Systemwide functions and aliases for the bash shell
/etc/cron.daily/*	Daily cron jobs
/etc/cron.hourly/*	Hourly cron jobs
/etc/cron.monthly/*	Monthly cron jobs
/etc/cron.weekly/*	Weekly cron jobs
/etc/crontab	System cron file
/etc/csh.cshrc	C shell initialization file
/etc/csh.login	C shell login file
/etc/default/useradd	Defaults for the useradd command
/etc/DIR_COLORS	Directory listing colors
/etc/exports	NFS exported directories
/etc/filesystems	Supported filesystem types
/etc/fstab	Filesystems mounted or available for mounting
/etc/group	System group definitions
/etc/host.conf	Resolver configuration file
/etc/hosts	Map of IP numbers to hostnames
/etc/hosts.allow	Hosts allowed to access Internet services
/etc/hosts.deny	Hosts forbidden to access Internet ...