#%PAM-1.0
auth required pam_listfile.so item=user sense=deny file=/etc/ftpd/ftpusers onerr=succeed
-auth required pam_unix.so
-auth required pam_shells.so
-auth required pam_nologin.so
-account required pam_unix.so
-session required pam_unix.so
+auth include system-auth
+account required pam_nologin.so
+account include system-auth
+session include system-auth