[Unit] Description=NTP client/server After=ntpdate.service sntp.service ntpd.service Conflicts=ntpd.service [Service] Type=forking PIDFile=/var/run/chronyd.pid EnvironmentFile=-/etc/sysconfig/chronyd ExecStart=/usr/sbin/chronyd $OPTIONS ExecStartPost=/usr/libexec/chrony-helper update-daemon [Install] WantedBy=multi-user.target