| NTP Server2013/12/18 | 
| Configure NTP server for time adjustment. | 
| 
[root@dlp ~]#  yum -y install ntp  
[root@dlp ~]#  vi /etc/ntp.conf  # line 19: add the network range you allow to receive requests restrict 10.0.0.0 mask 255.255.255.0 nomodify notrap # change servers for synchronization #server 0.fedora.pool.ntp.org iburst #server 1.fedora.pool.ntp.org iburst #server 2.fedora.pool.ntp.org iburst #server 3.fedora.pool.ntp.org iburst 
server ntp1.jst.mfeed.ad.jp server ntp2.jst.mfeed.ad.jp server ntp3.jst.mfeed.ad.jp systemctl start ntpd.service  [root@dlp ~]# systemctl enable ntpd.service  
ln -s '/usr/lib/systemd/system/ntpd.service' '/etc/systemd/system/multi-user.target.wants/ntpd.service'
[root@dlp ~]# ntpq -p 
     remote           refid      st t when poll reach   delay   offset  jitter
==============================================================================
 ntp1.jst.mfeed. 172.29.3.60      2 u   21   64    1   20.089  2349.38   0.000
 ntp2.jst.mfeed. 172.29.2.50      2 u   20   64    1   20.961  2350.28   0.000
 ntp3.jst.mfeed. 172.29.3.60      2 u   19   64    1   19.634  2348.26   0.000
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