Edit /etc/ntp.conf and comment out the following 3 lines;

server 0.rhel.pool.ntp.org

server 1.rhel.pool.ntp.org

server 2.rhel.pool.ntp.org

add the line:

server 10.19.72.23                # temporary ntp server

 

Start the service:

service ntpd start &

 

Check the service:

ntpq –p

 

The output should be similar to the following:

     remote           refid      st t when poll reach   delay   offset  jitter

=========================================================

 z1nd01domp003.f 2.2.2.1          2 u   29   64    1    0.855    0.604   0.008

 LOCAL(0)        .LOCL.                  10  l   28   64    1    0.000    0.000   0.008

 

Enable the service at system reboot

chkconfig ntpd on