su.pamd

   1 #%PAM-1.0
   2 auth            sufficient      pam_rootok.so
   3 auth            required        pam_wheel.so group=wheel
   4 auth            required        pam_unix.so
   5 account         required        pam_unix.so
   6 password        required        pam_cracklib.so difok=2 minlen=8 dcredit=2 ocredit=2 retry=3
   7 password        required        pam_unix.so md5 shadow use_authtok
   8 session         required        pam_unix.so
   9 session         required        pam_env.so
  10 session         required        pam_limits.so change_uid
  11 session         optional        pam_xauth.so