Linux Administration Cookbook

Enabling an NTP client

Assuming that your system isn't using chronyd, and its date is sliding constantly, you can enable it manually.

The configuration file for chronyd is located at /etc/chrony.conf. The following is the default configuration file, with the commented out sections removed:

server 0.centos.pool.ntp.org iburstserver 1.centos.pool.ntp.org iburstserver 2.centos.pool.ntp.org iburstserver 3.centos.pool.ntp.org iburstdriftfile /var/lib/chrony/driftmakestep 1.0 3rtcsynclogdir /var/log/chrony

Once in place, if it's not already in place and running, systemd is used to maintain the service:

$ sudo systemctl enable chronyd$ sudo systemctl start chronyd

Do check that a rogue admin hasn't taken it upon themselves to install openntpd, or ...