pam_localuser(8) -- Linux man page
NAMEpam_localuser - require users to be listed in /etc/passwd
SYNOPSISaccount sufficient /lib/security/pam_localuser.so args
account required /lib/security/pam_wheel.so group=devel
DESCRIPTIONpam_localuser.so exists to help implement 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.so and pam_wheel.so or pam_listfile.so 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.
- turns on debugging
uses a file other than /etc/passwd.
BUGSLet's hope not, but if you find any, please report them via the "Bug Track" link at http://bugzilla.redhat.com/bugzilla/
AUTHORNalin Dahyabhai <email@example.com>