You can change the NTP server configuration after the initial deployment of your VMware Cloud Director appliance.
Procedure
- Log in directly or by using an SSH client to the VMware Cloud Director appliance console as root.
- To modify the NTP server, edit the /etc/systemd/timesyncd.conf file.
The contents of the /etc/systemd/timesyncd.conf file must be similar to the following. To specify multiple NTP servers, use a space-delimited list.
# This file is part of systemd. # # systemd is free software; you can redistribute it and/or modify it # under the terms of the GNU Lesser General Public License as published by # the Free Software Foundation; either version 2.1 of the License, or # (at your option) any later version. # # Entries in this file show the compile time defaults. # You can change settings by editing this file. # Defaults can be restored by simply deleting this file. # # See timesyncd.conf(5) for details. [Time] #FallbackNTP=time1.sample-time-server.com time2.sample-time-server.com time3.sample-time-server.com time4.sample-time-server.com NTP=time.sample-time-server.com
- Restart the NTP service.
systemctl restart systemd-timesyncd.service -l
- Verify that the service is running properly.
timedatectl status
Sample output from the timedatectl command.Local time: Tue 2022-12-13 15:29:18 UTC Universal time: Tue 2022-12-13 15:29:18 UTC RTC time: Tue 2022-12-13 15:29:18 Time zone: Etc/UTC (UTC, +0000) Network time on: yes NTP synchronized: yes RTC in local TZ: no
- Sync the time to the NTP server.
ntpdate time_server
- Repeat steps 2 through 5 on each appliance in the cluster.