How to set the time Synchronization on Aria Suite Products with systemd-timesyncd (CLI)

Products

• VMware Aria Suite

Issue/Introduction

This article introduces how to set the time synchronization of Aria Suite Products with systemd-timesyncd.

 

Environment

• Aria Operations 8.x
• Aria Operations for Logs 8.x
• Aria Suite Life Cycle Manager 8.x

Resolution

Follow below steps to configure NTP using CLI

1. Edit /etc/systemd/timesyncd.conf file as follows, and Save the file.

 ---/Default
 [Time]
 #NTP=
 #FallbackNTP=time1.google.com time2.google.com time3.google.com time4.google.com
 ...
 
 ---/After changing
 [Time]
 NTP=<NTP Server(IP/FQDN)>
 #FallbackNTP=time1.google.com time2.google.com time3.google.com time4.google.com
 ...
 
 "<NTP Server>" is to be your NTP Server's FQDN.

2. Restart systemd-timesyncd with the following command.

root [~] # systemctl disable systemd-timesyncd.service
root [~] # systemctl enable systemd-timesyncd.service
root [~] # systemctl restart systemd-timesyncd.service

 

After setting up NTP, you can see that the service is running with the status similar to:

root [~] # systemctl status systemd-timesyncd.service

systemd-timesyncd.service-Network Time Synchronization
   Loaded: loaded (/etc/systemd/system/systemd-timesyncd.service; enabled)
   Active: active (running) since Mon 2015-06-01 14:40:44 UTC; 3s ago
     Docs: man: systemd-timesyncd.service (8)
Main PID: 334 (systemd-timesyn)
   Status: "Using Time Server 106.186.114.89:123 (0. NTP_FQDN)."
   CGroup: /system.slice/systemd-timesyncd.service
           mq334 / lib / systemd / systemd-timesyncd

We can also see timedatectl "NTP synchronized" is now "yes".

root [~] # timedatectl

      Local time: Mon 2015-06-01 14:44:45 UTC
  Universal time: Mon 2015-06-01 14:44:45 UTC
        RTC time: Mon 2015-06-01 14:44:45
       Time zone: UTC (UTC, +0000)
     NTP enabled: yes
NTP synchronized: yes
RTC in local TZ: no
      DST active: n / a

Notes: The preceding command excerpts are only examples. Date, time, and environmental variables may vary depending on your environment.

Additional Information

NTP settings apply to all linux based VMware Photon OS.
Here is the linux link which describes its standard procedure of using systemd-timesyncd for setting NTP servers.
* systemd-timesyncd - ArchWiki

Official reference link for Photon OS:
* Photon Management Daemon Command-line Interface (pmd-cli)