Configure Network Time Protocol (NTP)

Install NTP Daemon

1. Install NTPd with the following command

yum -y install ntp

Configure Firewall

1. Add NTP service to the 'allow' rules and reload the firewall to apply changes

firewall-cmd --add-service=ntp --permanent

firewall-cmd --reload

Edit ntp.conf File

1. Change/add the /etc/ntp.conf by removing current time servers and adding new time servers

Change from

# hetzner ntp servers
server ntp1.hetzner.de iburst
server ntp2.hetzner.com iburst
server ntp3.hetzner.net iburst

to

# hetzner ntp servers
# server ntp1.hetzner.de iburst
# server ntp2.hetzner.com iburst
# server ntp3.hetzner.net iburst

Add the following time servers
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server 0.pool.ntp.org
server 1.za.pool.ntp.org
server 2.africa.pool.ntp.org

Start And Check NTP service

1. Start NTP service and check to see if it is active

Start and enable NTPd
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systemctl start ntpd
systemctl enable ntpd

Check to see if service is enabled
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ntpq -p