auth		required	pam_unix.so nullok

account		required	pam_unix.so

password	required	pam_unix.so nullok

# session	required	pam_selinux.so close
session		required	pam_limits.so
session		required	pam_env.so
session		required	pam_unix.so
session		optional	pam_lastlog.so
# session	required	pam_selinux.so open