auth		required	pam_shells.so 
auth		required	pam_nologin.so 
auth		include		system-auth
 				
account		required	pam_access.so 
account		required	pam_nologin.so 
account		include		system-auth
 
password	include		system-auth
 
session         optional        pam_loginuid.so
session		required	pam_env.so 
session		include		system-auth
  
