1、服务器端安装

1.1、安装chrony时间同步服务器

wget http://www.rpmfind.net/linux/centos/7.8.2003/os/x86_64/Packages/chrony-3.4-1.el7.x86_64.rpm

rpm -ivh chrony-3.4-1.el7.x86_64.rpm

或 yum install -y chrony

systemctl start chronyd

systemctl status chronyd

1.2、修改配置文件

vi /etc/chrony.conf

server news.neu.edu.cn iburst

server ntp.sjtu.edu.cn iburst

allow 192.168.100.0/24

1.3、重启服务

systemctl restart chronyd

systemctl enable chronyd

2、客户端安装

2.1、安装chrony时间同步服务器

wget http://www.rpmfind.net/linux/centos/7.8.2003/os/x86_64/Packages/chrony-3.4-1.el7.x86_64.rpm wget http://rpmfind.net/linux/centos/7.8.2003/os/x86_64/Packages/libseccomp-2.3.1-4.el7.x86_64.rpm

wget http://www.rpmfind.net/linux/centos/7.8.2003/os/x86_64/Packages/ntpdate-4.2.6p5-29.el7.centos.x86_64.rpm

rpm -ivh libseccomp-2.3.1-4.el7.x86_64.rpm

rpm -ivh chrony-3.4-1.el7.x86_64.rpm

rpm -ivh ntpdate-4.2.6p5-29.el7.centos.x86_64.rpm

或 yum install -y chrony ntpdate

2.2、修改配置文件

vi /etc/chrony.conf

server 192.168.200.18 iburst #chrony服务器ip地址

2.3、重启服务

systemctl restart chronyd

systemctl enable chronyd

chronyc sources

clock -w

2.4、同步服务器时间

ntpdate 192.168.200.18