pam_localuser(8) - phpMan

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_BUF_ERR
Memory buffer error.

PAM_CONV_ERR
The conversation method supplied by the application failed to obtain the username.

PAM_INCOMPLETE
The conversation method supplied by the application returned PAM_CONV_AGAIN.

PAM_SERVICE_ERR
The user name is not valid or the passwd file is unavailable.

PAM_PERM_DENIED
The user is not listed in the passwd file.

EXAMPLES
Add the following lines to /etc/pam.d/su to allow only local users or group wheel to use
su.

account sufficient pam_localuser.so
account required pam_wheel.so

FILES
/etc/passwd
Local user account information.