问题描述
通过 yum 安装 ntpd 后，我运行命令 systemctl enable ntpd.service 并重新启动计算机.在得到shell提示后，我运行 systemctl -a |.grep ntp ，我将 ntpd.service加载为无效死状态.如果我使用 systemctl start ntpd.service 手动启动它，则可以正常运行.这是为什么?如何确保重新启动后 ntpd.service 将启动并运行?
After I installed ntpd via yum I run the command systemctl enable ntpd.service and rebooted the computer. After I got the shell prompt I run systemctl -a | grep ntp and I got ntpd.service loaded inactive dead. If I start it manually using systemctl start ntpd.service it works fine. Why is that? How can I ensure the ntpd.service will be up and running after reboot?
推荐答案
这似乎是fedora的问题，有一个名为"chrony"的服务，该服务可防止ntpd服务在启动后启动.使用 yum 删除chrony后，启动后将启动ntpd服务.有关更多详细信息，您可以检查此.
This appears to be an issue with fedora, there is a service named "chrony" which prevents ntpd service to start after boot. After removing chrony with yum, ntpd service is started after boot. For more details you can check this.
更新:您还可以禁用在端口123上运行的 chronyd ，然后ntpd将启动:
UPDATE: You can also disable the chronyd that runs on port 123 and then ntpd will start:
sudo systemctl disable chronyd
sudo systemctl start ntpd
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