NTP Sync Issue Across Tata (Europe)

Wed Aug 9 09:57:03 UTC 2023

John Gilmore wrote:

>>      I was also speaking specifically about installing GPS antennas in
>>      viable places, not using a facility-provided GPS or NTP service.
> 
> Am I confused?  Getting the time over a multi-gigabit Internet from a
> national time standard agency such as NIST (or your local country's
> equivalent) should produce far better accuracy and stability than
> relying on locally received GPS signals.

When the (wrong) question is "how to build a stratum 1 server?",
that can not be an answer.

> GPS uses very weak radio
> signals which are regularly spoofed by all sorts of bad actors:

The question, seemingly, is not "how to build a secure stratum
1 server?".

BTW, the proper question should be "how to obtain secure time?".

					Masataka Ohta