Re: SV: Certain NTS servers not synching, how to best troubleshoot ?

4123 was indeed the missing part, thanks Henning !



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On Monday, 29 July 2024 at 23:55, Henning Svane <hsv-i2u8QauLV39aa/[email protected]> wrote:

> Hi Laura
> 
> Netnod.se use the following ports 4123/udp and 4460/tcp for NTS. Netnod.se was one of the first to implement NTS, so it is a little different from newer installations.
> https://www.netnod.se/netnod-time/how-to-use-nts
> https://www.ietf.org/proceedings/106/slides/slides-106-ntp-nts-deployment-00.pdf
> 
> I am not sure if they also use 123/udp or if it is only for NTP
> 
> Regards
> Henning
> 
> -----Oprindelig meddelelse-----
> Fra: Laura Smith n5d9xq3ti233xiyif2vp-g/[email protected]
> 
> Sendt: 29. juli 2024 22:28
> Til: [email protected]
> Emne: [chrony-users] Certain NTS servers not synching, how to best troubleshoot ?
> 
> 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 steps can I take to troubleshoot it ?
> 
> I've tried "tcpdump -npi ens3 host gbg1-ts.nts.netnod.se" but nothing comes up, even if I do a "chronyc offline gbg1-ts.nts.netnod.se" and "chronyc online gbg1-ts.nts.netnod.se" in a different window.
> 
> So I'm not sure how best to get some data to work on ?
> 
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