linux 使用systemd-timesyncd进行ntp校时

1、修改配置文件/etc/systemd/timesyncd.conf：NTP=ntp服务器地址
2、重新加载配置：sudo systemctl daemon-reload
3、重启systemd-timesyncd：sudo systemctl restart systemd-timesyncd
4、设置systemd-timesyncd开机自启：sudo systemctl enable systemd-timesyncd