#%PAM-1.0
auth       required     /lib/security/pam_unix.so shadow
auth       required     /lib/security/pam_nologin.so
account    required     /lib/security/pam_unix.so
password   required     /lib/security/pam_cracklib.so
password   required     /lib/security/pam_unix.so shadow nullok use_authtok
session    required     /lib/security/pam_unix.so
session    required     /lib/security/pam_limits.so