PAM_LOCALUSER(8)                         Linux-PAM Manual                        PAM_LOCALUSER(8)



NAME
       pam_localuser - require users to be listed in /etc/passwd

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

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.

OPTIONS
       debug
           Print debug information.

       file=/path/passwd
           Use a file other than /etc/passwd.

MODULE TYPES PROVIDED
       All module types (account, auth, password and session) are provided.

RETURN VALUES
       PAM_SUCCESS
           The new localuser was set successfully.

       PAM_SERVICE_ERR
           No username was given.

       PAM_USER_UNKNOWN
           User not known.

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



FILES
       /etc/passwd
           Local user account information.

SEE ALSO
       pam.conf(5), pam.d(5), pam(7)

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



Linux-PAM Manual                            09/19/2013                           PAM_LOCALUSER(8)