[PVE-User] NTP on PVE8...

[Marco Gaiarin]

Running 'pve7to8' i've catch:

 INFO: Checking for supported & active NTP service..
 WARN: systemd-timesyncd is not the best choice for time-keeping on servers, due to only applying updates on boot.
   While not necessary for the upgrade it's recommended to use one of:
     * chrony (Default in new Proxmox VE installations)
     * ntpsec
     * openntpd

This is indeed mostly true, and in a cluster using a NTP daemon is a must.
No doubt on that.


But for a standalone server, systemd-timesyncd seems sufficient to me; and
surely NOT 'only applying updates on boot': systemd-timesyncd sync time at
regilar interval!

       PollIntervalMinSec=, PollIntervalMaxSec=
           The minimum and maximum poll intervals for NTP messages. Polling starts at the minimum poll interval, and is adjusted within the specified limits in response to received
           packets.

           Each setting takes a time span value. The default unit is seconds, but other units may be specified, see systemd.time(5).  PollIntervalMinSec= defaults to 32 seconds and
           must not be smaller than 16 seconds.  PollIntervalMaxSec= defaults to 34 min 8 s (2048 seconds) and must be larger than PollIntervalMinSec=.


Here still using systemd-timesyncd for my standalone servers...

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