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Learning Red Hat Enterprise Linux & Fedora, Fourth Edition by Bill McCarty

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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/cups/*

Printer configuration files

/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 services

/etc/httpd/conf/*

Apache configuration ...

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