auth        sufficient   pam_rootok.so
  auth        required     pam_wheel.so use_uid
  auth        required     pam_env.so
  auth        required     pam_unix.so nullok
  
  account     required     pam_unix.so
  
  password    required     pam_unix.so nullok
  
  session     required     pam_limits.so
  session     required     pam_env.so
  session     required     pam_unix.so