pam_localuser

' pam_localuser.so 'u pam_localuser.so [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 (Aqs 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 (Aqs users .

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

debug Print debug information .

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

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

PAM_SUCCESS The new localuser was set successfully .

PAM_SERVICE_ERR No username was given .

PAM_PERM_DENIED The user is not listed in the passwd file .

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

/etc/passwd Local user account information .

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

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