时间不同步
[root@api2 ~]# /usr/sbin/ntpdate 10.243.zz.xx
29 Jan 14:56:41 ntpdate[22317]: no server suitable for synchronization found
修改crontab中配置同步虚机:/usr/sbin/ntpdate 10.237.1tx.uu
29 Jan 15:00:29 ntpdate[24530]: adjust time server 10.237.1tx.uu offset 0.007328 sec
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1)节点查看当前系统时间:timedatectl
不需要启动ntpd服务
2)同步主机上查看配置及服务
#systemctl status chronyd.service
#cat /etc/chrony.conf
server 10.xx.xx.9 iburst
driftfile /var/lib/chrony/drift
makestep 10 3
rtcsync
local stratum 10
logdir /var/log/chrony
stratumweight 0.05
noclientlog
logchange 0.5
allow all