Disclaimer – This article and its contents are for educational purposes only. All article instructions are not to be used on production systems.
Install chrony package
Note: the installation expects you to be root user. You can escalate to root privileges using sudo or su. Ref example below;
sudo su -
Step 1) Install the chrony package using apt package manager.
apt install chrony

Step 2) Edit the /etc/chrony/chrony.conf file using vi editor (or alternate editor).
vi /etc/chrony/chrony.conf
Step 3) Add your required NTP sources to the /etc/chrony/chrony.conf file as needed.

Step 4) Enable the chrony service using systemctl
systemctl enable chrony

Step 5) Restart the chrony service using systemctl
systemctl restart chrony
Step 6) Verify the chrony service is enable and running
systemctl status chrony
