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Thread: ntp server?

  1. #1
    Join Date
    Jan 2015
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    170
    Distro
    Ubuntu 20.04 Focal Fossa

    ntp server?

    ok, so i can turn on ntp servers in the settings app to synchronize the time with some NTP server out on the internet. so far so good. but how does ubuntu know which NTP server to use? where is that information stored?
    I TNO, therefore I am.

  2. #2
    Join Date
    Jul 2010
    Location
    ozarks, Arkansas, USA
    Beans
    13,778
    Distro
    Xubuntu 20.04 Focal Fossa

    Re: ntp server?

    hmiersch; Hello

    See the output of:
    Code:
     systemctl status systemd-timesyncd.service
    where we are pointed to the man page:
    man:systemd-timesyncd.service(8)

    reading is good
    THE current(cy) in Documentation:
    https://help.ubuntu.com/community/PopularPages

    Happy ubuntu'n !

  3. #3
    Join Date
    Mar 2010
    Location
    Squidbilly-Land
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    22,474
    Distro
    Ubuntu

    Re: ntp server?

    There are multiple different time sync methods on Linux. ntp is the old method an usually accurate enough. chrony is newer and sub-second accurate, so not as good as ntp msec accuracy. There's an extreme ptp method which is usec accurate. I’ve never needed that.

    I’m most familiar with ntp. it is controlled by the /etc/ntp.conf for both the client and server. Clients point to your server. Your server points to the internet ntp servers you want. There's a great ntp.conf manpage for the settings.

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