NTP Server2013/07/03 | 
| 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. 210.173.160.86   2 u   25   64    1   19.560  1145.02   0.000
 ntp2.jst.mfeed. 210.173.160.56   2 u   25   64    1   19.380  1144.72   0.000
 ntp3.jst.mfeed. 210.173.176.251  2 u   24   64    1   17.904  1144.27   0.000
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