Linux time synchronization

• yum software installation, software installation encountered during interrogation, select y, ntp time synchronization command

[root@centos7 ~]#yum -y install ntp

• Time synchronization command

[root@centos7 ~]#ntpdate time1.aliyun.com
31 Mar 14:55:35 ntpdate[14453]: step time server 203.107.6.88 offset 0.752479 sec

• Check System Time

[root@centos7 ~]#date
Tue Mar 31 15:02:59 CST 2020

• Meaning synchronization time
  time synchronization has a special significance in the distributed program, it effectively avoids the distributed file system, there are two hosts may receive an error message from the future in the data file transmission process.