NTP : Configure NTP Server (NTPd)2021/08/17 |
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Install NTPd and Configure NTP server for time adjustment. NTP uses 123/UDP.
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| [1] | Install and Configure NTPd. |
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root@dlp:~#
apt -y install ntp
root@dlp:~#
vi /etc/ntp.conf # line 23 : comment out default settings and add NTP Servers for your timezone #pool 0.debian.pool.ntp.org iburst #pool 1.debian.pool.ntp.org iburst #pool 2.debian.pool.ntp.org iburst #pool 3.debian.pool.ntp.org iburst pool ntp.nict.jp iburst # line 51 : add network range you allow to receive time syncing requests from clients restrict 10.0.0.0 mask 255.255.255.0 nomodify notrap
root@dlp:~#
systemctl restart ntp
# verify status root@dlp:~# ntpq -p
remote refid st t when poll reach delay offset jitter
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ntp.nict.jp .POOL. 16 p - 64 0 0.000 +0.000 0.000
*ntp-k1.nict.jp .nict. 1 u 7 64 1 14.932 +0.867 0.550
ntp-b2.nict.go. .NICT. 1 u 2 64 1 20.220 +1.184 0.422
ntp-b3.nict.go. .NICT. 1 u 2 64 1 20.305 +1.265 0.261
ntp-a2.nict.go. .NICT. 1 u - 64 1 15.095 +0.919 0.244
+ntp-a3.nict.go. .NICT. 1 u 3 64 1 15.012 +0.612 0.459
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