6.17. pam_localuser - require users to be listed in /etc/passwd

pam_localuser.so [ debug ] [ file=/path/passwd ]

6.17.1. DESCRIPTION

pam_localuser is a PAM module to help implementing site-wide login policies, where they typically include a subset of the network's users and a few accounts that are local to a particular workstation. Using pam_localuser and pam_wheel or pam_listfile is an effective way to restrict access to either local users and/or a subset of the network's users.

This could also be implemented using pam_listfile.so and a very short awk script invoked by cron, but it's common enough to have been separated out.

6.17.2. OPTIONS

debug

Print debug information.

file=/path/passwd

Use a file other than /etc/passwd.

6.17.3. MODULE SERVICES PROVIDED

All services (account, auth, password and session) are supported.

6.17.4. RETURN VALUES

PAM_SUCCESS

The new localuser was set successfull.

PAM_SERVICE_ERR

No username was given.

PAM_USER_UNKNOWN

User not known.

6.17.5. EXAMPLES

Add the following line to /etc/pam.d/su to allow only local users in group wheel to use su.

account sufficient pam_localuser.so
account required pam_wheel.so
      

6.17.6. AUTHOR

pam_localuser was written by Nalin Dahyabhai <nalin@redhat.com>.