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