NTP Server : Configure NTP Server (Chrony)2024/04/26 |
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Install Chrony and Configure NTP server for time adjustment. NTP uses 123/UDP.
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| [1] | Install and Configure Chrony. |
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root@dlp:~#
apt -y install chrony
root@dlp:~#
vi /etc/chrony/chrony.conf # line 20 : comment out default settings and add NTP server pool you like to use # * OK to keep default if you do not have specific requirements #pool ntp.ubuntu.com iburst maxsources 4 #pool 0.ubuntu.pool.ntp.org iburst maxsources 1 #pool 1.ubuntu.pool.ntp.org iburst maxsources 1 #pool 2.ubuntu.pool.ntp.org iburst maxsources 2 pool ntp.nict.jp iburst # add to last line : add network range you allow to receive time syncing requests from clients allow 10.0.0.0/24
root@dlp:~#
systemctl restart chrony
# verify status root@dlp:~# chronyc sources MS Name/IP address Stratum Poll Reach LastRx Last sample =============================================================================== ^- ntp-a3.nict.go.jp 1 6 17 1 -36us[ -36us] +/- 8587us ^- ntp-b3.nict.go.jp 1 6 17 1 -1399us[-1399us] +/- 10ms ^+ ntp-b2.nict.go.jp 1 6 17 0 -1167us[-1167us] +/- 9928us ^* ntp-a2.nict.go.jp 1 6 7 2 +264us[+1040us] +/- 10ms |
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