Configure NTP Client no require more install (Ubuntu 20.04 server)

 

root@client:~# systemctl status systemd-timesyncd

*  systemd-timesyncd.service - Network Time Synchronization

     Loaded: loaded (/lib/systemd/system/systemd-timesyncd.service; enabled; ve>

     Active: active (running) since Mon 2020-04-27 01:20:36 UTC; 2min 6s ago

       Docs: man:systemd-timesyncd.service(8)

   Main PID: 662 (systemd-timesyn)

     Status: "Initial synchronization to time server 91.189.94.4:123 (ntp.ubunt>

      Tasks: 2 (limit: 4621)

     Memory: 1.5M

     CGroup: /system.slice/systemd-timesyncd.service

             +- 662 /lib/systemd/systemd-timesyncd

root@client:~# vi /etc/systemd/timesyncd.conf

# add to the end : set NTP server for your timezone

NTP=vn.pool.ntp.org

RootDistanceMaxSec=50

root@client:~# systemctl restart systemd-timesyncd

root@client:~# timedatectl timesync-status

       Server: 10.0.0.30 (dlp.srv.world)

Poll interval: 1min 4s (min: 32s; max 34min 8s)

         Leap: normal

      Version: 4

      Stratum: 2

    Reference: 3DCD7882

    Precision: 1us (-25)

Root distance: 7.964ms (max: 5s)

       Offset: +6.050ms

        Delay: 412us

       Jitter: 0

 Packet count: 1

    Frequency: +92.800ppm