1.安裝chrony
yum install -y chrony
2.編輯配置文件
vim /etc/chrony.conf
server time1.aliyun.com iburst
server time2.aliyun.com iburst
server time3.aliyun.com iburst
server time4.aliyun.com iburst
allow 10.0.0.0/24
3.啓動服務
systemctl start chronyd
systemctl enable chronyd
4.查看系統時區
5.修改系統時區
timedatectl set-timezone Asia/Shanghai
6.驗證