Re: NTP Sync Issue Across Tata (Europe)

[Rubens Kuhl <rubensk () gmail com>]

On Sun, Aug 6, 2023 at 11:36 PM Mel Beckman <mel () beckman org> wrote:
> GPS Selective Availability did not disrupt the timing chain of GPS, only the ephemeris (position information).  But a 
> government-disrupted timebase scenario has never occurred, while hackers are a documented threat.
>
> DNS has DNSSec, which while not deployed as broadly as we might like, at least lets us know which servers we can 
> trust.

NTP has NTS, which all 5 servers I mentioned have, and many more also have.

> Your own atomic clocks still have to be synced to a common standard to be useful. To what are they sync’d? GPS, I’ll 
> wager.

Nope, they are synced to the reference atomic clock of National
Observatory, pretty similar to USNO but local.

Rubens