how to have ntp service started at boot time?

[François Patte]

-----BEGIN PGP SIGNED MESSAGE-----
Hash: SHA1

Bonjour,

I want to have ntp service running on my machine, so I enabled this
service:

systemctl enable ntpd.service

systemctl start ntpd.service

But, every time I reboot my machine, ntp is dead....

 systemctl status ntpd.service
● ntpd.service - Network Time Service
   Loaded: loaded (/usr/lib/systemd/system/ntpd.service; enabled)
   Active: inactive (dead)

How to have running automatically?

Thank you
- -- 
François Patte
UFR de mathématiques et informatique
Laboratoire CNRS MAP5, UMR 8145
Université Paris Descartes
45, rue des Saints Pères
F-75270 Paris Cedex 06
Tél. +33 (0)1 8394 5849
http://www.math-info.univ-paris5.fr/~patte
-----BEGIN PGP SIGNATURE-----
Version: GnuPG v2

iEYEARECAAYFAlW0808ACgkQdE6C2dhV2JVrWwCfdSytq2jgzTvqnXz/NGKHJXGL
qFAAn0LXLUIOLAozKLVBb4z158bFBtDV
=M0F2
-----END PGP SIGNATURE-----