auth            requisite       pam_nologin.so
auth            required        pam_env.so
auth            required        pam_unix.so
auth		optional	pam_gnome_keyring.so
account         required        pam_unix.so
session         required        pam_limits.so
session         required        pam_unix.so
session 	optional 	pam_systemd.so
session 	optional	pam_gnome_keyring.so auto_start
password        required        pam_unix.so