Important configuration files in /etc
- /etc/passwd
- user account data
- /etc/shadow
- passwords for user accounts (readable only by root)
- /etc/group
- group definitions
- /etc/inittab
- configuration for init
- /etc/rc, /etc/rc.local (BSD)
- system initialization scripts
- /etc/rc.conf (BSD)
- configuration variables used in rc scripts
- /etc/init.d
- init/shutdown scripts
- /etc/rc?.d
- directories with links to init scripts for each run level
- /etc/profile
- global shell (/bin/sh) initialization
- /etc/fstab
- file system mount table
- /etc/mtab
- list of currently-mounted filesystems
- /etc/hostname (varies)
- system hostname to configure at boot
- /etc/resolv.conf
- list of name server IP addresses, resolver options
- /etc/services
- TCP and UDP service names and port numbers
- /etc/inetd.conf
- configuration for inetd (many network services)
- /etc/mail
- mail system configuration (mostly sendmail)
Steve VanDevender
Last modified: Mon Jul 2 14:36:45 PDT 2007