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Groups > linux.debian.user > #198494

Re: What time is it, really?

From Gene Heskett <gheskett@shentel.net>
Newsgroups linux.debian.user
Subject Re: What time is it, really?
Date 2018-08-09 17:10 +0200
Message-ID <wkUJB-51W-29@gated-at.bofh.it> (permalink)
References <wkUgx-4Cg-5@gated-at.bofh.it> <wkUgx-4Cg-11@gated-at.bofh.it>
Organization linux.* mail to news gateway

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On Thursday 09 August 2018 10:35:23 Greg Wooledge wrote:

> On Thu, Aug 09, 2018 at 07:19:46AM -0700, Fred wrote:
> > So I installed ntpdate as suggested but it is
> > not active yet.
>
> Whoever suggested that is using outdated information.  Install ntp and
> not ntpdate.
>
+1

> The current versions of the ntp package (since, like, Debian 6.x I
> think) incorporate the one-time clock slamming feature of ntpdate, so
> you don't need ntpdate at all.
>
> > If I ask google what time it is in Mesa AZ. the response agrees
> > closely with an "atomic" clock I have.  The computer clock is about
> > 10 min. fast.
>
> Once you've had ntp installed for several minutes (and possibly
> rebooted, if your clock was particularly bad), you can query it with
> "ntpq -p" to see how it's doing.
>
> Unfortunately, the output format of ntpq -p isn't DOCUMENTED anywhere,
> so it's a bit cryptic.  The most important thing to know, which is not
> stated anywhere except word of mouth like this email, is that the
> "offset" column is reporting milliseconds, not seconds.

Something else I had forgotten is the loading on the level 2 servers. But 
was reminded just now. I have ntp running on my router, and this machine 
is running on the routers time broadcasts which you can enable in 
dd-wrt, and most of the rest of my machines are set and controlled by 
the this machines rebroadcast, see the man pages about how to do that. 
So I supposedly have only one actual query going out to the network time 
servers despite there being 7 to 8 machines on my local network, so that 
6 or 7 machines that are not banging on the level 2 servers.

Thats simply being a good net citizen.
-- 
Cheers, Gene Heskett
--
"There are four boxes to be used in defense of liberty:
 soap, ballot, jury, and ammo. Please use in that order."
-Ed Howdershelt (Author)
Genes Web page <http://geneslinuxbox.net:6309/gene>

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Thread

What time is it, really? Fred <fred@blakemfg.com> - 2018-08-09 16:40 +0200
  Re: What time is it, really? Martin <keine-eile@online.de> - 2018-08-09 16:40 +0200
  Re: What time is it, really? Greg Wooledge <wooledg@eeg.ccf.org> - 2018-08-09 16:40 +0200
    Re: What time is it, really? Jim Popovitch <jim@k4vqc.com> - 2018-08-09 17:00 +0200
      Re: What time is it, really? Greg Wooledge <wooledg@eeg.ccf.org> - 2018-08-09 17:10 +0200
        Re: What time is it, really? Jim Popovitch <jim@k4vqc.com> - 2018-08-09 17:10 +0200
        Re: What time is it, really? john doe <johndoe65534@mail.com> - 2018-08-09 20:40 +0200
          Re: What time is it, really? Brian <ad44@cityscape.co.uk> - 2018-08-09 21:50 +0200
            Re: What time is it, really? Fred <fred@blakemfg.com> - 2018-08-09 23:40 +0200
              Re: What time is it, really? Shea Alterio <krusete@gmail.com> - 2018-08-10 00:00 +0200
              Re: What time is it, really? David Wright <deblis@lionunicorn.co.uk> - 2018-08-10 17:20 +0200
                Re: What time is it, really? Michael Stone <mstone@debian.org> - 2018-08-10 17:40 +0200
                Re: What time is it, really? David Wright <deblis@lionunicorn.co.uk> - 2018-08-10 21:50 +0200
                Re: What time is it, really? Fred <fred@blakemfg.com> - 2018-08-10 18:40 +0200
                Re: What time is it, really? Brian <ad44@cityscape.co.uk> - 2018-08-10 19:50 +0200
                Re: What time is it, really? Fekete Tamás <fektom@gmail.com> - 2018-08-10 19:50 +0200
                Re: What time is it, really? Greg Wooledge <wooledg@eeg.ccf.org> - 2018-08-10 20:10 +0200
                Re: What time is it, really? Gene Heskett <gheskett@shentel.net> - 2018-08-10 20:20 +0200
                Re: What time is it, really? Michael Stone <mstone@debian.org> - 2018-08-10 23:00 +0200
                Re: What time is it, really? Fekete Tamás <fektom@gmail.com> - 2018-08-11 11:10 +0200
                Re: What time is it, really? David Wright <deblis@lionunicorn.co.uk> - 2018-08-10 22:40 +0200
    Re: What time is it, really? Gene Heskett <gheskett@shentel.net> - 2018-08-09 17:10 +0200
    Re: What time is it, really? Darac Marjal <mailinglist@darac.org.uk> - 2018-08-09 17:20 +0200
      Re: What time is it, really? Greg Wooledge <wooledg@eeg.ccf.org> - 2018-08-09 18:00 +0200
        Re: What time is it, really? Andre Majorel <aym-naibed@teaser.fr> - 2018-08-09 19:10 +0200
        Re: What time is it, really? Nicolas George <george@nsup.org> - 2018-08-09 19:20 +0200
        Re: What time is it, really? Michael Stone <mstone@debian.org> - 2018-08-09 20:00 +0200
    Re: What time is it, really? deloptes <deloptes@gmail.com> - 2018-08-10 01:30 +0200
  Re: What time is it, really? Nicolas George <george@nsup.org> - 2018-08-09 16:50 +0200
    OT: What time is it, really? Martin <keine-eile@online.de> - 2018-08-09 17:10 +0200
      Re: OT: What time is it, really? Martin <keine-eile@online.de> - 2018-08-09 17:20 +0200
        Re: OT: What time is it, really? Nicolas George <george@nsup.org> - 2018-08-09 17:50 +0200
          Re: OT: What time is it, really? Martin <keine-eile@online.de> - 2018-08-09 18:10 +0200
        Re: OT: What time is it, really? Gene Heskett <gheskett@shentel.net> - 2018-08-09 18:20 +0200
          Re: OT: What time is it, really? Martin <keine-eile@online.de> - 2018-08-09 18:30 +0200
            Re: OT: What time is it, really? Gene Heskett <gheskett@shentel.net> - 2018-08-09 19:40 +0200
              Re: OT: What time is it, really? Anders Andersson <pipatron@gmail.com> - 2018-08-10 12:00 +0200
                Re: OT: What time is it, really? Gene Heskett <gheskett@shentel.net> - 2018-08-10 13:50 +0200
      Re: OT: What time is it, really? Nicolas George <george@nsup.org> - 2018-08-09 17:20 +0200
    Re: What time is it, really? Fred <fred@blakemfg.com> - 2018-08-09 18:50 +0200
      Re: What time is it, really? Nicolas George <george@nsup.org> - 2018-08-09 19:00 +0200
      Re: What time is it, really? Greg Wooledge <wooledg@eeg.ccf.org> - 2018-08-09 19:00 +0200
      Re: What time is it, really? Michael Stone <mstone@debian.org> - 2018-08-09 20:00 +0200
  Re: What time is it, really? Gene Heskett <gheskett@shentel.net> - 2018-08-09 16:50 +0200

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