ตั้งเวลาเครื่อง CentOS8

 systemctl status chronyd

Installing Chrony on RHEL 8 / CentOS 8

Set timezone.

sudo timedatectl set-timezone Asia/Bangkok

Chrony can be installed on RHEL 8 / CentOS 8 from package manager.

sudo yum -y install chrony

After the installation, start and enable chronyd service.

sudo systemctl enable --now chronyd

The service status should show running

$ systemctl status chronyd
 ● chronyd.service - NTP client/server
    Loaded: loaded (/usr/lib/systemd/system/chronyd.service; enabled; vendor preset: enabled)
    Active: active (running) since Mon 2018-12-31 08:11:50 EAT; 5min ago
      Docs: man:chronyd(8)
            man:chrony.conf(5)
  Main PID: 743 (chronyd)
     Tasks: 1 (limit: 5061)
    Memory: 1.7M
    CGroup: /system.slice/chronyd.service
            └─743 /usr/sbin/chronyd

Configuring Chrony on RHEL 8 / CentOS 8

After the installation, you can make the changes on Chrony main configuration file /etc/chrony.conf

One main configuration change you can make is to set the time servers closest to you. Since I’m in Nairobi, I’ll set Africa NTP pool of servers.