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Re: Linux system time with NTP/Chrony but no PPS
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From: |
David Taylor |
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Subject: |
Re: Linux system time with NTP/Chrony but no PPS |
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Date: |
Thu, 8 Sep 2022 11:52:33 +0100 |
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User-agent: |
Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:102.0) Gecko/20100101 Thunderbird/102.2.1 |
On 08/09/2022 11:18, Mike Tubby wrote:
Does anyone have hints or a configuration snippet for Chrony or NTP that
will work with GPSD without PPS?
Regards
Mike
Mike,
Standard NTP works without a PPS feed, but with limited accuracy, of course.
What accuracy do you need? A very minimum configuration file for NTP might be
(assuming Linux):
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
# /etc/ntp.conf, configuration for ntpd; see ntp.conf(5) for help
# Keep a note of drift across restarts
driftfile /var/lib/ntp/ntp.drift
# WAN servers
pool uk.pool.ntp.org maxpoll 7 iburst prefer
pool de.pool.ntp.org maxpoll 7 iburst prefer
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
where the time comes from the best of UK and DE pool servers over the Internet.
NTP does not need GPSD to work, nor does GPSD need NTP.
Sorry, but I don't use Chrony.
Cheers,
David
--
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