Chrony server deployment
I. Server side
1, Install Chrony,CentOS 7 default installation
yum install chrony -y
2. Modify Chrony configuration file
vim /etc/chrony.conf
#Comment out external time server included in configuration
#server 0.centos.pool.ntp.org iburst
#server 1.centos.pool.ntp.org iburst
#server 2.centos.pool.ntp.org iburst
#server 3.centos.pool.ntp.org iburst
#Add available NTP servers, the following are Beijing University of Posts and Telecommunications, National Time Service Center, Aliyun public network NTP
server 202.112.10.60 iburst
server ntp.ntsc.ac.cn iburst
server ntp1.aliyun.com iburst
#Allow devices on these segments to synchronize time, comment out allow...... means allow all devices
#Allow NTP client access from local network
allow 192.168.0.0/16
3. Service settings
#Restart chronyd service
Systemctl restart chronyd
#View chronyd service status
systemctl status chronyd
#Set chronyd to boot
systemctl enable chronyd
4. View synchronization
chronyc sources -v
II. Client Settings
1, Install Chrony,CentOS 7 default installation
yum install chrony -y
2. Modify Chrony configuration file
vim /etc/chrony.conf
#Comment out time server included in configuration
#server 0.centos.pool.ntp.org iburst
#server 1.centos.pool.ntp.org iburst
#server 2.centos.pool.ntp.org iburst
#server 3.centos.pool.ntp.org iburst
#sever Add chrony server as ntp server
server xxx.xxx.xxx.xxx iburst
3. Service settings
#Restart chronyd service
Systemctl restart chronyd
#View chronyd service status
systemctl status chronyd
#Set chronyd to boot
systemctl enable chronyd
4. View synchronization
chronyc sources -v
PS: chrony and ntpd cannot be enabled simultaneously due to port conflict
