| Re: [chrony-users] Certain NTS servers not synching, how to best troubleshoot ? |
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- To: chrony-users@xxxxxxxxxxxxxxxxxxxx
- Subject: Re: [chrony-users] Certain NTS servers not synching, how to best troubleshoot ?
- From: Miroslav Lichvar <mlichvar@xxxxxxxxxx>
- Date: Tue, 30 Jul 2024 08:34:30 +0200
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On Mon, Jul 29, 2024 at 08:27:41PM +0000, Laura Smith wrote:
> I have a weird situation where I cannot get NTS working to the netnod.se series of servers (e.g. gbg1-ts.nts.netnod.se )
>
> Other NTS server are working without issue (e.g. ntppool1.time.nl) so its not 4460 being blocked on a firewall.
What exactly is in your chrony config?
Netnod has separated NTS-KE and NTS-NTP servers:
- gbg1.nts.netnod.se is an NTS-KE server (listening on TCP port 4460)
- gbg1-ts.nts.netnod.se is an NTS-NTP server (listening on UDP port 4123)
The config needs to specify the NTS-KE server. The address and port of
the NTS-NTP server is negotiated in NTS-KE.
When it's working correctly, "chronyc sources" should print the
reverse lookup of the NTS-NTP server and "chronyc -N sources" should
print the configured hostname of the NTS-KE server.
--
Miroslav Lichvar
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