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- To: chrony-users@xxxxxxxxxxxxxxxxxxxx
- Subject: Re: [chrony-users] NTP bogus timestamps - Chrony on openSUSE 15.1
- From: Stuart Longland <stuartl@xxxxxxxxxxxxxxxxxx>
- Date: Thu, 22 Aug 2019 08:30:43 +1000
- Openpgp: id=77102FB21549FFDE5E13B83A0C7F53F4F359B8EF; url=https://stuartl.longlandclan.id.au/key.asc
On 22/8/19 12:00 am, James Knott wrote:
> The calculations based on those time stamps
> were meant to determine that latency and correct for it.
As I understand it, the server doesn't care and simply round-trips it.
The client does the RTT calculations and adjusts accordingly.
It is also a crude way to authenticate the response -- since the client
presumably knows what it sent, if it gets a "spoofed" reply from a
server, this adds a (weak) way to detect this.
--
Stuart Longland (aka Redhatter, VK4MSL)
I haven't lost my mind...
...it's backed up on a tape somewhere.
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