--- ppp.pam	2005-10-07 15:36:03.000000000 +0100
+++ ppp.pam	2004-09-09 11:38:59.000000000 +0100
@@ -1,5 +1,5 @@
 #%PAM-1.0
-auth       include	system-auth
-account    required	pam_nologin.so
-account    include	system-auth
-session    include	system-auth
+auth       required	pam_nologin.so
+auth       required	pam_stack.so service=system-auth
+account    required	pam_stack.so service=system-auth
+session    required	pam_stack.so service=system-auth