NTPd : Configure NTP Server2015/11/03 |
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Install NTPd and Configure NTP server for time adjustment. NTP uses 123/UDP.
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| [1] | NTPd is installed if you installed Fedora Server with minimum-install, so it's not necessarry to install new packages. But if it's not installed, do like follows. |
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[root@dlp ~]# dnf -y install ntp
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| [2] | Configure NTP. |
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[root@dlp ~]#
vi /etc/ntp.conf # line 18: 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 (replace to your timezone's one) # 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 iburst
server ntp2.jst.mfeed.ad.jp iburst server ntp3.jst.mfeed.ad.jp iburst systemctl start ntpd [root@dlp ~]# systemctl enable ntpd [root@dlp ~]# ntpq -p
remote refid st t when poll reach delay offset jitter
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*ntp1.jst.mfeed. 133.243.236.17 2 u 1 64 1 18.298 0.685 0.049
ntp2.jst.mfeed. 133.243.236.17 2 u 2 64 1 18.299 0.076 0.085
ntp3.jst.mfeed. 133.243.236.17 2 u 1 64 1 18.477 -0.487 0.246
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