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Re: ntpsec as server questions

From Max Nikulin <manikulin@gmail.com>
Newsgroups linux.debian.user
Subject Re: ntpsec as server questions
Date 2023-12-06 13:30 +0100
Message-ID <HHZcl-bGOX-5@gated-at.bofh.it> (permalink)
References (5 earlier) <HHg5z-b4jt-1@gated-at.bofh.it> <HHnJL-bajD-11@gated-at.bofh.it> <HHpsd-bbNf-1@gated-at.bofh.it> <HHGCK-brjs-3@gated-at.bofh.it> <HHH5L-brNo-13@gated-at.bofh.it>
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On 06/12/2023 00:03, Pocket wrote:
> On 12/5/23 11:37, Max Nikulin wrote:
>> On 05/12/2023 05:14, Pocket wrote:

>>> For gene........................................................
[...]
>>
>>      dpkg-reconfigure tzdata
> 
> That does not work. Cannot set EST5EDT.  you have to do that manually.

Do you have reasons to prefer EST5EDT to IANA identifiers like 
America/Detroit, America/New_York, etc. (that have some differences from 
EST5EDT)? Location-based time zones should be more precise for most of 
users.

I find it reasonable that "dpkg-reconfigure tzdata" forces users to set 
a timezone that should provide more accurate results for them.

I have seen America/New_York in a couple of Gene's messages including
https://lists.debian.org/msgid-search/7ba9b8bc-2929-4a3d-8007-a1b5c7f6fc16@shentel.net
so I assume it is one that he should use. My impression is that EST5EDT 
appeared unintentionally.

> I don't use KDE, I am using LXDE and systems without desktops.
> 
> Comment that part out of the shell script.

Do you really need TZ environment variable especially set to the value 
in system-wide configuration? In the Gene's case I mentioned it for the 
case that some piece of software decided to set it, but I have not 
recommended to set it. It is a way to make debugging of a next issue harder.

Sorry, I do not have a VM with LXDE to check if TZ is actually set for 
applications. It may depend on display manager configuration and on the 
approach to launch applications: window manager children or systemd session.

Anyway I noticed "For gene" and I remember that he uses KDE that has a 
GUI for it. However I am unsure if KDE is installed to this 3d printer 
controller.

> Which is why I use it.
> 
> /usr/share/zoneinfo/posix/EST5EDT is a symlilnk to 
> /usr/share/zoneinfo/EST5EDT

And it is rather confusing since arbitrary abbreviations may be used to 
specify POSIX time zones, e.g. ABC5DEF. From my point of view, it is 
just legacy since the time zone database is available.

It was painful when JavaScript (ECMAScript 5) had fixed DST rules based 
on current regulations. Chrome followed the standard, Firefox used 
accurate history of time transitions. I have not checked POSIX, but I 
see that GNU libc approach is something third in between.

Let's use time zones that allows to get accurate local time.

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Thread

ntpsec as server questions gene heskett <gheskett@shentel.net> - 2023-12-04 01:50 +0100
  Re: ntpsec as server questions jeremy ardley <jeremy.ardley@gmail.com> - 2023-12-04 02:00 +0100
    Re: ntpsec as server questions jeremy ardley <jeremy.ardley@gmail.com> - 2023-12-04 02:10 +0100
      Re: ntpsec as server questions gene heskett <gheskett@shentel.net> - 2023-12-04 10:00 +0100
        Re: ntpsec as server questions Pocket <pocket@columbus.rr.com> - 2023-12-04 12:00 +0100
          Re: ntpsec as server questions gene heskett <gheskett@shentel.net> - 2023-12-04 12:40 +0100
            Re: ntpsec as server questions Greg Wooledge <greg@wooledge.org> - 2023-12-04 13:20 +0100
              Re: ntpsec as server questions gene heskett <gheskett@shentel.net> - 2023-12-04 17:00 +0100
                Re: ntpsec as server questions Dan Purgert <dan@djph.net> - 2023-12-04 17:40 +0100
                Re: ntpsec as server questions gene heskett <gheskett@shentel.net> - 2023-12-04 22:30 +0100
                Re: ntpsec as server questions David Wright <deblis@lionunicorn.co.uk> - 2023-12-05 04:00 +0100
                Re: ntpsec as server questions Greg Wooledge <greg@wooledge.org> - 2023-12-04 17:40 +0100
                Re: ntpsec as server questions Max Nikulin <manikulin@gmail.com> - 2023-12-04 18:10 +0100
                Re: ntpsec as server questions Greg Wooledge <greg@wooledge.org> - 2023-12-04 19:50 +0100
                Re: ntpsec as server questions Max Nikulin <manikulin@gmail.com> - 2023-12-16 11:40 +0100
                Re: ntpsec as server questions gene heskett <gheskett@shentel.net> - 2023-12-04 22:30 +0100
                Re: ntpsec as server questions John Hasler <john@sugarbit.com> - 2023-12-04 17:40 +0100
                Re: ntpsec as server questions gene heskett <gheskett@shentel.net> - 2023-12-04 22:40 +0100
                Re: ntpsec as server questions Tom Furie <tom@furie.org.uk> - 2023-12-04 17:50 +0100
              Re: ntpsec as server questions Greg Wooledge <greg@wooledge.org> - 2023-12-04 20:20 +0100
                Re: ntpsec as server questions gene heskett <gheskett@shentel.net> - 2023-12-04 22:40 +0100
              Re: ntpsec as server questions gene heskett <gheskett@shentel.net> - 2023-12-04 20:20 +0100
          Re: ntpsec as server questions Greg Wooledge <greg@wooledge.org> - 2023-12-04 13:20 +0100
            Re: ntpsec as server questions Pocket <pocket@columbus.rr.com> - 2023-12-04 14:00 +0100
            Re: ntpsec as server questions gene heskett <gheskett@shentel.net> - 2023-12-04 21:30 +0100
              Re: ntpsec as server questions Greg Wooledge <greg@wooledge.org> - 2023-12-04 21:40 +0100
                Re: ntpsec as server questions David Wright <deblis@lionunicorn.co.uk> - 2023-12-04 22:50 +0100
                Re: ntpsec as server questions jeremy ardley <jeremy.ardley@gmail.com> - 2023-12-05 00:50 +0100
            Re: ntpsec as server questions gene heskett <gheskett@shentel.net> - 2023-12-04 21:30 +0100
              Re: ntpsec as server questions Pocket <pocket@columbus.rr.com> - 2023-12-04 23:20 +0100
                Re: ntpsec as server questions Max Nikulin <manikulin@gmail.com> - 2023-12-05 17:40 +0100
                Re: ntpsec as server questions Pocket <pocket@columbus.rr.com> - 2023-12-05 18:10 +0100
                Re: ntpsec as server questions Max Nikulin <manikulin@gmail.com> - 2023-12-06 13:30 +0100
                Re: ntpsec as server questions Pocket <pocket@columbus.rr.com> - 2023-12-06 14:10 +0100
                Re: ntpsec as server questions Max Nikulin <manikulin@gmail.com> - 2023-12-06 16:10 +0100
                Re: ntpsec as server questions Pocket <pocket@columbus.rr.com> - 2023-12-06 16:50 +0100
                Re: ntpsec as server questions Greg Wooledge <greg@wooledge.org> - 2023-12-06 17:20 +0100
                Re: ntpsec as server questions Pocket <pocket@columbus.rr.com> - 2023-12-06 17:30 +0100
                Re: ntpsec as server questions Greg Wooledge <greg@wooledge.org> - 2023-12-06 17:50 +0100
                Re: ntpsec as server questions Curt <curty@free.fr> - 2023-12-06 17:50 +0100
                Re: ntpsec as server questions gene heskett <gheskett@shentel.net> - 2023-12-05 18:30 +0100
                Re: ntpsec as server questions Pocket <pocket@columbus.rr.com> - 2023-12-05 18:30 +0100
                Re: ntpsec as server questions David Wright <deblis@lionunicorn.co.uk> - 2023-12-06 06:30 +0100
                Re: ntpsec as server questions Max Nikulin <manikulin@gmail.com> - 2023-12-06 17:50 +0100
                Re: ntpsec as server questions Pocket <pocket@columbus.rr.com> - 2023-12-06 18:10 +0100
                Re: ntpsec as server questions Greg Wooledge <greg@wooledge.org> - 2023-12-06 18:30 +0100
                Re: ntpsec as server questions Pocket <pocket@columbus.rr.com> - 2023-12-06 18:40 +0100
                Re: ntpsec as server questions Curt <curty@free.fr> - 2023-12-06 18:50 +0100
                Re: ntpsec as server questions Greg Wooledge <greg@wooledge.org> - 2023-12-06 19:00 +0100
                Re: ntpsec as server questions Pocket <pocket@columbus.rr.com> - 2023-12-06 19:10 +0100
                Re: ntpsec as server questions Greg Wooledge <greg@wooledge.org> - 2023-12-06 19:30 +0100
                Re: ntpsec as server questions David Wright <deblis@lionunicorn.co.uk> - 2023-12-06 21:50 +0100
                Re: ntpsec as server questions Pocket <pocket@columbus.rr.com> - 2023-12-07 00:20 +0100
                Re: ntpsec as server questions Greg Wooledge <greg@wooledge.org> - 2023-12-07 01:20 +0100
                Re: ntpsec as server questions Pocket <pocket@columbus.rr.com> - 2023-12-07 01:30 +0100
                Re: ntpsec as server questions Greg Wooledge <greg@wooledge.org> - 2023-12-07 01:30 +0100
                Re: ntpsec as server questions Pocket <pocket@columbus.rr.com> - 2023-12-07 01:40 +0100
                Re: ntpsec as server questions Greg Wooledge <greg@wooledge.org> - 2023-12-07 01:50 +0100
                Re: ntpsec as server questions Pocket <pocket@columbus.rr.com> - 2023-12-07 02:50 +0100
                Re: ntpsec as server questions David Wright <deblis@lionunicorn.co.uk> - 2023-12-07 06:50 +0100
                Re: ntpsec as server questions Max Nikulin <manikulin@gmail.com> - 2023-12-08 03:40 +0100
                Re: ntpsec as server questions Greg Wooledge <greg@wooledge.org> - 2023-12-08 04:10 +0100
                Re: ntpsec as server questions gene heskett <gheskett@shentel.net> - 2023-12-08 05:20 +0100
                Re: ntpsec as server questions Greg Wooledge <greg@wooledge.org> - 2023-12-08 13:20 +0100
                Re: ntpsec as server questions Greg Wooledge <greg@wooledge.org> - 2023-12-08 18:00 +0100
                Re: ntpsec as server questions Max Nikulin <manikulin@gmail.com> - 2023-12-09 12:20 +0100
                Re: ntpsec as server questions Greg Wooledge <greg@wooledge.org> - 2023-12-08 13:40 +0100
                Re: ntpsec as server questions <tomas@tuxteam.de> - 2023-12-08 14:20 +0100
                Re: ntpsec as server questions "Thomas Schmitt" <scdbackup@gmx.net> - 2023-12-08 14:40 +0100
                Re: ntpsec as server questions David Wright <deblis@lionunicorn.co.uk> - 2023-12-08 18:10 +0100
                Re: ntpsec as server questions David Wright <deblis@lionunicorn.co.uk> - 2023-12-06 21:30 +0100
                Re: ntpsec as server questions Pocket <pocket@columbus.rr.com> - 2023-12-07 00:20 +0100
                Re: ntpsec as server questions <tomas@tuxteam.de> - 2023-12-07 06:40 +0100
                Re: ntpsec as server questions David Wright <deblis@lionunicorn.co.uk> - 2023-12-07 06:50 +0100
                Re: ntpsec as server questions Greg Wooledge <greg@wooledge.org> - 2023-12-07 13:20 +0100
                Re: ntpsec as server questions Pocket <pocket@columbus.rr.com> - 2023-12-07 14:10 +0100
                Re: ntpsec as server questions John Hasler <john@sugarbit.com> - 2023-12-07 15:30 +0100
                Re: ntpsec as server questions Pocket <pocket@columbus.rr.com> - 2023-12-07 15:40 +0100
                Re: ntpsec as server questions David Wright <deblis@lionunicorn.co.uk> - 2023-12-07 17:00 +0100
                Local time in databases (Re: ntpsec as server questions) Max Nikulin <manikulin@gmail.com> - 2023-12-07 16:40 +0100
                Re: Local time in databases (Re: ntpsec as server questions) <tomas@tuxteam.de> - 2023-12-07 17:10 +0100
                Re: Local time in databases (Re: ntpsec as server questions) Max Nikulin <manikulin@gmail.com> - 2023-12-08 03:20 +0100
                Re: Local time in databases (Re: ntpsec as server questions) Nicholas Geovanis <nickgeovanis@gmail.com> - 2023-12-08 05:20 +0100
                Re: Local time in databases (Re: ntpsec as server questions) <tomas@tuxteam.de> - 2023-12-08 05:40 +0100
                Re: Local time in databases (Re: ntpsec as server questions) Max Nikulin <manikulin@gmail.com> - 2023-12-12 18:10 +0100
                Re: Local time in databases David Wright <deblis@lionunicorn.co.uk> - 2023-12-17 06:20 +0100
                Re: Local time in databases (Re: ntpsec as server questions) <tomas@tuxteam.de> - 2023-12-08 05:40 +0100
                Re: ntpsec as server questions James Cloos <cloos@jhcloos.com> - 2023-12-06 22:30 +0100
                Re: ntpsec as server questions David Wright <deblis@lionunicorn.co.uk> - 2023-12-07 06:50 +0100
              Re: ntpsec as server questions David Wright <deblis@lionunicorn.co.uk> - 2023-12-05 04:00 +0100
      Re: ntpsec as server questions Anssi Saari <anssi.saari@debian-user.mail.kapsi.fi> - 2023-12-04 11:10 +0100
        Re: ntpsec as server questions gene heskett <gheskett@shentel.net> - 2023-12-04 12:30 +0100
          Re: ntpsec as server questions <tomas@tuxteam.de> - 2023-12-04 12:50 +0100
  Re: ntpsec as server questions Greg Wooledge <greg@wooledge.org> - 2023-12-04 02:00 +0100
  Re: ntpsec as server questions <tomas@tuxteam.de> - 2023-12-04 06:10 +0100
    Re: ntpsec as server questions Jeffrey Walton <noloader@gmail.com> - 2023-12-04 06:30 +0100
      Re: ntpsec as server questions Charles Curley <charlescurley@charlescurley.com> - 2023-12-04 07:30 +0100
        Re: ntpsec as server questions Jeffrey Walton <noloader@gmail.com> - 2023-12-04 08:10 +0100
    Re: ntpsec as server questions gene heskett <gheskett@shentel.net> - 2023-12-04 11:00 +0100

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