pam_localuser − require users to be listed in /etc/passwd

SYNOPSIS [debug] [file=/path/passwd]


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 and a very short awk script invoked by cron, but it´s common enough to have been separated out.


Print debug information.


Use a file other than /etc/passwd.

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


The new localuser was set successfully.


No username was given.


User not known.

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

account sufficient
account required


Local user account information.

(5), pam.d(5), pam(8)

pam_localuser was written by Nalin Dahyabhai <>.


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