Please pay attention to whether your business will be affected by the time update, the method is for reference only.
1. Error reproduction
Centos 8 executes ntpdate and the following error occurs
No match for argument: ntpdate Error: Unable to find a match: ntpdate
Reason: The ntp software package is no longer supported by default in CentOS8.0, and time synchronization will be implemented by chrony
Two, the solution
1. Via wlnmp
Add wlnmp's yum source
# rpm -ivh http://mirrors.wlnmp.com/centos/wlnmp-release-centos.noarch.rpm
Install ntp service
# yum -y install wntp
Time synchronization
# ntpdate ntp1.aliyun.com
2. By synchronizing the target server
It is pre-installed in centos8. If it is not installed, execute the following command:
# yum -y install chrony
Start and add self-start at boot (select or unselect according to the actual situation)
# systemctl enable chronyd.service
# systemctl restart chronyd.service
# systemctl status chronyd.service
Modify the configuration file
vi /etc/chrony.conf
Original arrangement
2 # Please consider joining the pool (http://www.pool.ntp.org/join.html).
3 pool 2.centos.pool.ntp.org iburst
modify
2 # Please consider joining the pool (http://www.pool.ntp.org/join.html).
3 pool 2.centos.pool.ntp.org iburst
server 目标服务器IP iburst
Save and exit, restart the chronyd service.
If there are any errors in this article, please leave a comment and correct me.