客户端配置NTP

查看系统当前时间：
[root@localhost ~]# date -R

查看当前时区：

客户端同步NTP时间：
[root@localhost ~]# yum -y install ntp
[root@localhost ~]# vim /etc/ntp.conf 增加ntp服务器的server，注释掉默认server服务

# Use public servers from the pool.ntp.org project.
# Please consider joining the pool (http://www.pool.ntp.org/join.html).
server *.9.9.122 iburst
# 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

[root@localhost ~]# systemctl start ntpd
[root@localhost ~]# systemctl enable ntpd
[root@localhost ~]# systemctl status ntpd

查看服务器同级设备列表：
[root@localhost ~]# ntpq -p

同步系统时间至硬件：
[root@localhost ~]# hwclock —systohc