NTPd : Configure NTP Server2016/11/22 |
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Install NTPd and Configure NTP server for time adjustment.
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| [1] | Install NTPd. |
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[root@dlp ~]#
dnf -y install ntp
[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 ntp.nict.jp iburst
server ntp1.jst.mfeed.ad.jp iburst systemctl start ntpd [root@dlp ~]# systemctl enable ntpd |
| [2] | If Firewalld is running, allow NTP service. NTP uses 123/UDP. |
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[root@dlp ~]# firewall-cmd --add-service=ntp --permanent success [root@dlp ~]# firewall-cmd --reload success |
| [3] | Verify it works normally like follows. |
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[root@dlp ~]# ntpq -p
remote refid st t when poll reach delay offset jitter
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*ntp-b2.nict.go. .NICT. 1 u 8 64 1 16.572 -2.141 0.398
+ntp1.jst.mfeed. 133.243.236.17 2 u 7 64 1 17.915 -2.236 2.431
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