How to configure NTP server settings for the Photon OS appliances in vCloud Availability 3.0.x

Products

• VMware Cloud Director

Issue/Introduction

This article provides information on how to manually set the NTP server for a Photon OS appliance when:

• The NTP server previously configured is no longer valid.
• The vCloud Availability appliance is not synchronizing with a valid NTP server set during deployment.

Environment

VMware vCloud Availability 3.0.x

Resolution

To configure an NTP server on a vCloud Availability appliance post-deployment, update the settings via command line operations on each appliance:

1. SSH to the appliance whose NTP settings you need to update and login as the root user.
2. Edit the timesyncd.conf file with a text editor such as vi:

vi /etc/systemd/timesyncd.conf

3. In the [Time] section edit the NTP entry with the correct NTP server address:

[Time]
#FallbackNTP=time1.google.com time2.google.com time3.google.com time4.google.com
NTP=ntpAddress

4. Restart the network service:

systemctl restart systemd-networkd

5. Restart the timesync service:

systemctl restart systemd-timesyncd

6. Verify that the time on the appliance is now synchronizing with the NTP server.