#%PAM-1.0
auth        required      pam_env.so
auth        sufficient    pam_unix.so likeauth nullok
auth        required      pam_deny.so
account     required      pam_unix.so
password    sufficient    pam_unix.so nullok use_authtok md5 shadow
password    required      pam_deny.so
session     required      pam_limits.so
session     required      pam_unix.so