NPT

# Centos 7 
 ```install: yum install ntp -y``` 
 ``vi /etc/ntp.conf`` 
 ``server 192.168.1.100 iburst`` 
 ``systemctl restart ntp`` 
 ``check ntp: ntpq -p`` 
 # Centos 8 
 ``install: dnf install chrony`` 
 ``vi /etc/chrony.conf`` 
 ``server 192.168.1.100 iburst`` 
 ``systemctl enable chronyd`` 
 ``systemctl restart chronyd`` 
 ``check ntp: chronyc sources``