更改 VMware Cloud Director 设备的 NTP 服务器

在初始部署 VMware Cloud Director 设备后，可以更改 NTP 服务器配置。

过程

1. 以 root 身份直接或通过 SSH 客户端登录到 VMware Cloud Director 设备控制台。
2. 要修改 NTP 服务器，请编辑 /etc/systemd/timesyncd.conf 文件。
   /etc/systemd/timesyncd.conf 文件的内容必须类似于以下内容。要指定多个 NTP 服务器，请使用空格分隔列表。

   # 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

3. 重新启动 NTP 服务。

   systemctl restart systemd-timesyncd.service -l

4. 确认服务正常运行。

   timedatectl status

   timedatectl 命令的示例输出。

   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
   

5. 将时间同步到 NTP 服务器。

   ntpdate time_server

6. 对集群中的每个设备重复步骤 2 至 5。