| /etc/exports | Describes the directories that can be exported to NFS clients . |
| /etc/xtab | Contains entries for directories that are currently exported. |
| /etc/fstab | Contains a list of mountable file-system entries. |
| /etc/ftpuser | The ftpd daemon rejects remote logins to local user accounts that are named in /etc/ftpusers . |
| /etc/ group | The /etc/group file exists to supply names for each group. |
| /etc/ hosts | Associates Internet (IP) addresses with official host names and aliases. |
| /etc/hosts.equiv, $HOME/.rhosts | Specifies remote hosts and users that are "equivalent" to the local host or user. |
| /etc/inetd.conf | Configuration file for the inetd daemon. |
| /var/adm/inetd.sec | Optional security file for the inetd daemon. |
| /etc/inittab | Supplies the script to the init boot daemon. |
| /etc/issue | Contains the issue or project identification to be printed as a login prompt. |
| /etc/mnttab | Contains a table of devices mounted by the mount command. |
| /etc/networks | Associates Internet (IP) addresses with official network names and aliases. |
| /etc/nsswitch.conf | Service switch configuration file. |
| /etc/passwd | Contains user names, passwords, and other user information. |
| /etc/profile | System startup file for the user shell. |
| $HOME/.profile | User startup file for a shell. |
| $HOME/.exrc | Startup configuration file for the vi editor. |
| /etc/ntp.conf | Configuration file for the NTP xntpd daemon. |
| /etc/rpc | Contains user-readable names that can be used in place of RPC program numbers . |
| /etc/services | Associates official service names and aliases with the port number and protocol the services use. |
| /etc/ shells | Contains a list of legal shells on the system. |