1. Install the ntp service commands
yum install -y ntp
2. Common NTP server address:
- ntp1.aliyun.com
- ntp2.aliyun.com
- ntp3.aliyun.com
- ntp4.aliyun.com
- ntp5.aliyun.com
- ntp6.aliyun.com
- ntp7.aliyun.com
- time.pool.aliyun.com (still available)
3. Time synchronization command
ntpdate ntp server address