linux主机安装配置chrony时间同步器

1.安装chrony,自行百度，或者下载安装包
2.配置阿里云同步器
 server ntp.aliyun.com iburst
 stratumweight 0
 driftfile /var/lib/chrony/drift
 rtcsync
 makestep 10 3
 bindcmdaddress 127.0.0.1
 bindcmdaddress ::1
 keyfile /etc/chrony.keys
 commandkey 1
 generatecommandkey
 logchange 0.5
 logdir /var/log/chrony
 
配置完成重启chrony客户端服务
systemctl restart chronyd

查看时钟源
[root@19201680560128 ~]# chronyc -n sources
210 Number of sources = 1
MS Name/IP address         Stratum Poll Reach LastRx Last sample               
===============================================================================
^* 203.107.6.88                  2   6   377    26  +2117us[+2280us] +/-   27ms


查看时钟源同步参数
[root@19201680560128 ~]# chronyc -n tracking
Reference ID    : CB6B0658 (203.107.6.88)
Stratum         : 3
Ref time (UTC)  : Thu Feb 20 05:20:33 2020
System time     : 0.000113491 seconds slow of NTP time #这个就是看同步的时间差
Last offset     : +0.000162896 seconds
RMS offset      : 0.001041374 seconds
Frequency       : 10.872 ppm fast
Residual freq   : +0.048 ppm
Skew            : 5.800 ppm
Root delay      : 0.042800911 seconds
Root dispersion : 0.003054114 seconds
Update interval : 65.1 seconds
Leap status     : Normal