时间同步服务

 #安装时间同步工具chrony

[root@centos8 ~]#yum -y install chrony
[root@centos8 ~]#systemctl start chronyd.service

#更改时间
[root@centos8 ~]#date -s ‘-1 year‘
Sat Sep 7 18:59:31 CST 2019
[root@centos8 ~]#date
Sat Sep 7 18:55:35 CST 2019

#时间同步
[root@centos8 ~]#chronyc sources -vn
210 Number of sources = 4
MS Name/IP address Stratum Poll Reach LastRx Last sample
===============================================================================
^? time.cloudflare.com 0 6 0 - +0ns[ +0ns] +/- 0ns
^? ntp7.flashdance.cx 2 6 173 11 -8784h[ -8784h] +/- 182ms
^? time.cloudflare.com 3 6 177 13 -8784h[ -8784h] +/- 62ms

^? time.cloudflare.com 3 6 177 18 -8784h[ -8784h] +/- 62ms

[root@centos8 ~]#date

Mon Sep 7 18:56:25 CST 2020

时间同步服务

原文：https://www.cnblogs.com/weiweirui/p/13628693.html