變更 VMware Cloud Director 應用裝置的 NTP 伺服器

在初始部署 VMware Cloud Director 應用裝置後，可以變更 NTP 伺服器組態。

程序

1. 以 root 身分直接登入或使用 SSH 用戶端登入 VMware Cloud Director 應用裝置主控台。
2. 若要修改 NTP 伺服器，請編輯 /etc/systemd/timesyncd.conf 檔案。
   /etc/systemd/timesyncd.conf 檔案的內容必須類似於以下內容。若要指定多個 NTP 伺服器，請使用空格分隔清單。

   # 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. 重新啟動 NTP 服務。

   systemctl restart systemd-timesyncd.service -l

4. 確認該服務正常執行。

   timedatectl status

   timedatectl 命令的範例輸出。

   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. 將時間同步到 NTP 伺服器。

   ntpdate time_server

6. 對叢集中的每個應用裝置重複步驟 2 至 5。