Appendix B. Principal Linux Files
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.
|
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 files |
|
/etc/httpd/httpd.conf |
Main Apache configuration file |
|
/etc/init.d/* |
SysV initialization scripts |
|
/etc/initlog.conf |
Logging configuration file |
|
/etc/inittab |
Configuration for the init daemon, which controls executing processes |
|
/etc/issue |
Linux kernel and distribution version (local users) |
|
/etc/issue/net |
Linux kernel and distribution version (remote users) |
|
/etc/ld.so.conf |
Shared library configuration file |
|
/etc/login.defs |
Options for useradd and related commands |
|
/etc/logrotate.conf |
Log rotation configuration file |
|
/etc/logrotate.d/* |
Scripts to rotate logs |
|
/etc/mail/* |
Mail server configuration files |
|
/etc/mailcap |
metamail MIME information |
|
/etc/man.config |
man configuration file |
|
/etc/mime.types |
MIME types |
|
/etc/mime-magic* |
Magic numbers for MIME data |
|
/etc/minicom.users |
User IDs allowed to use minicom |
|
/etc/modules.conf |
Aliases and options for loadable kernel modules |
|
/etc/motd |
Message of the day |
|
/etc/mtab |
Mounted filesystems |
|
/etc/nsswitch.conf |
Resolver configuration file |
|
/etc/openldap/* |
Open LDAP configuration files |
|
/etc/pam.d/* |
PAM configuration files |
|
/etc/paper.config |
Paper sizes |
|
/etc/passwd |
User account information |
|
/etc/ppp/* |
PPP configuration |
|
/etc/printcap |
Printer options and capabilities |
|
/etc/profile |
Default environment for users of the bash shell |
|
/etc/profile.d/* |
Shell initialization |
|
/etc/protocols |
Protocol names and numbers |
|
/etc/pwdb.conf |
pwdb library configuration |
|
/etc/rc |
Scripts for system and process startup and shutdown |
|
/etc/rc.local |
Local startup script |
|
/etc/rc.sysinit |
System initialization file |
|
/etc/rc?.d/* |
Service start/stop scripts |
|
/etc/rpc |
RPC program number database |
|
/etc/rpm/* |
RPM database and configuration files |
|
/etc/samba/* |
Samba configuration files |
|
/etc/securetty |
Secure tty configuration |
|
/etc/security/* |
PAM configuration files |
|
/etc/sensors.conf |
libsensors configuration file |
|
/etc/services |
Standard service names and numbers |
|
/etc/shadow |
Secure user account information |
|
/etc/skel |
Skeleton files used to establish new user accounts |
|
/etc/ssh/* |
SSH configuration files |
|
/etc/sysconfig/* |
System configuration files |
|
/etc/sysconfig/network-scripts/* |
Network adapter configuration files |
|
/etc/sysctl.conf |
sysctl configuration file |
|
/etc/syslog.conf |
System logging process configuration |
|
/etc/termcap |
Terminal capabilities and options |
|
/etc/updatedb.conf |
updatedb/locate configuration file |
|
/etc/wvdial.conf |
GNOME dialer configuration file |
|
/etc/X11/applnk/* |
X application shortcuts |
|
/etc/X11/fs/config |
X font server configuration |
|
/etc/X11/gdm/* |
GNOME display manager configuration |
|
/etc/X11/prefdm |
Display manager configuration file |
|
/etc/X11/xdm/* |
X display manager configuration file |
|
/etc/X11/XF86Config |
X configuration file |
|
/etc/X11/xinit/Xclients |
Default script for xinit |
|
/etc/X11/xinit/xinitrc |
X session initialization file |
|
/etc/X11/Xmodmap |
Key mappings used by xdm and xinit |
|
/etc/xinetd.conf |
General xinetd configuration file |
|
/etc/xinetd.d/* |
xinetd configuration files for specific servers |
|
/home/*/public_html |
User web pages |
|
/root/.bash_history |
bash command history for system administrator |
|
/root/.bash_logout |
bash logout script for system administrator |
|
/root/.bash_profile |
bash initialization script for system administrator |
|
/root/.bashrc |
bash options for system administrator |
|
/root/.Xresources |
X resources for system administrator |
|
/usr/share/config/* |
Miscellaneous configuration files |
|
/usr/share/fonts/* |
Fonts |
|
/usr/share/ssl/openssl.cnf |
SSL certificate configuration |
|
/usr/X11R6/lib/X11/app-defaults/* |
X application defaults |
|
/usr/X11R6/lib/X11/fonts/* |
X fonts |
|
/var/log/cron |
Log of cron activity |
|
/var/log/httpd/access_log |
Log of web server access |
|
/var/log/httpd/error_log |
Log of web server errors |
|
/var/log/boot.log |
Boot messages |
|
/var/log/cron |
Cron log |
|
/var/log/dmesg |
Kernel message log |
|
/var/log/lastlog |
Last login log |
|
/var/log/maillog |
Mail transfer log |
|
/var/log/messages |
System log |
|
/var/log/samba/* |
Samba logs |
|
/var/log/secure |
System security log |
|
/var/log/up2date |
Up2date log |
|
/var/www/cgi-bin |
CGI scripts |
|
/var/www/html/* |
Web pages |
