[Dovecot] dovecot and ntp: Fatal: Time just moved backwards

[Harlan Stenn]

Juergen wrote:
> Harlan wrote:
> > There is no corrected version of the real-time clock before the PC goes
> > online.
> 
> I'd suggest to read chrony's manual. Chrony stores the reference values
> collected while running online for further use after reboot, even if we
> have no online connection at that point.

I'm pretty familiar with ntp in particular and computer timekeeping in
general.

I've also seen a fair number of situations where the hardware clock is
"just wrong", especially after a reboot.

In my world, it's about getting things to work right in as many cases as
possible.

> Of course, this doesn't work if you never have synced with an NTP
> server.

And more often than one might think, if one has just rebooted a machine.

H