Update ntp.md

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lovvvve 2020-07-27 17:32:35 +08:00 committed by GitHub
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@ -148,7 +148,7 @@ $ ntpdate cn.pool.ntp.org
示例:执行如下命令,就可以在每天凌晨 3 点同步系统时间:
```shell
echo "* 3 * * * /usr/sbin/ntpdate cn.pool.ntp.org" >> /etc/crontab # 修改 crond 服务配置
echo "0 3 * * * /usr/sbin/ntpdate cn.pool.ntp.org" >> /etc/crontab # 修改 crond 服务配置
systemctl restart crond # 重启 crond 服务以生效
```