#%PAM-1.0
auth       required	/lib/security/pam_securetty.so
auth       required	/lib/security/pam_pwdb.so md5 shadow 
auth       required	/lib/security/pam_nologin.so
auth	   optional	/lib/security/pam_mail.so
account	   required 	/lib/security/pam_access.so
account    required     /lib/security/pam_time.so
account    required	/lib/security/pam_pwdb.so
password   required	/lib/security/pam_cracklib.so
password   required	/lib/security/pam_pwdb.so md5 shadow use_authtok
session    required	/lib/security/pam_pwdb.so
session	   required	/lib/security/pam_limits.so