pam_localuser man page

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(8)

Author

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

Info

04/01/2016 Linux-PAM Manual Linux-PAM Manual