#%PAM-1.0
auth required pam_listfile.so item=user sense=deny file=/etc/security/blacklist.gdm onerr=succeed
auth include system-auth
-auth optional pam_gnome_keyring.so try_first_pass
+auth optional pam_gnome_keyring.so
account required pam_shells.so
account required pam_nologin.so