Rocky|Ntp服务

服务端

vi /etc/chrony.conf ：编辑指定目录文件


pool 2.pool.ntp.org iburst     《将2.pool.ntp.org改为自己的ip

#Use NTP servers from DHCP.

sourcedir /run/chrony-dhcp

#Record the rate at which the system clock gains/losses time.

driftfile /var/lib/chrony/drift

#Allow the system clock to be stepped in the first three updates

#if its offset is larger than 1 second.

makestep 1.0 3

#Enable kernel synchronization of the real-time clock (RTC).

rtcsync

#Enable hardware timestamping on all interfaces that support it.

#hwtimestamp *

#Increase the minimum number of selectable sources required to adjust

#the system clock.

#minsources 2

#Allow NTP client access from local network.

#allow 192.168.0.0/16        《删掉注释#号

#Serve time even if not synchronized to a time source.

#local stratum 10              《删掉注释#号）

systemctl restart chronyd：重启服务

systemctl enable chronyd：开启服务的自启动

systemctl start firewalld：启动指定服务

firewall-cmd --zone=public --add-port=123/udp --permanent：对外开放端口

firewall-cmd --reload:重载防火墙配置

firewall-cmd --list-ports：查看当前开放的端口

chronyc sources -v：查看时间服务器的状态

客户端

只用将2.pool.ntp.org改为服务端的ip

vi /etc/chrony.conf


pool 192.168.204.129 iburst
    
#Use NTP servers from DHCP.

sourcedir /run/chrony-dhcp

#Record the rate at which the system clock gains/losses time.

driftfile /var/lib/chrony/drift

#Allow the system clock to be stepped in the first three updates

#if its offset is larger than 1 second.

makestep 1.0 3

#Enable kernel synchronization of the real-time clock (RTC).

rtcsync

#Enable hardware timestamping on all interfaces that support it.

#hwtimestamp *

#Increase the minimum number of selectable sources required to adjust

#the system clock.

#minsources 2

#Allow NTP client access from local network.

#allow 192.168.0.0/16      

#Serve time even if not synchronized to a time source.

#local stratum 10       
    
systemctl restart chronyd：重启服务  
chronyc sources -v：查看时间服务器的状态