Ubuntu 26.04

NTP Server : Configure NTP Client2026/04/24

 

Configure NTP Client.

 

Since Chrony is running by default, you don't need to change the settings unless you have a specific requirement.

However, if, for example, your computer is in a closed network environment and cannot connect to the internet, you can change the server used for time synchronization as follows.

[1] Configure [systemd-timesyncd.service].
root@dlp:~#
vi /etc/chrony/sources.d/ubuntu-ntp-pools.sources
# line 4 : comment out the default settings and add the NTP server you want to use
#pool 1.ntp.ubuntu.com iburst maxsources 1 nts prefer
#pool 2.ntp.ubuntu.com iburst maxsources 1 nts prefer
#pool 3.ntp.ubuntu.com iburst maxsources 1 nts prefer
#pool 4.ntp.ubuntu.com iburst maxsources 1 nts prefer
pool ntp.srv.world iburst 

root@dlp:~#
systemctl restart chrony
# check working

root@ubuntu:~#
chronyc sources

MS Name/IP address         Stratum Poll Reach LastRx Last sample
===============================================================================
^* ntp.srv.world                 2   6    17     8    +35us[  +39us] +/- 7706us
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