[Samba] Time synchronization issues in Samba 4

[Rowland penny]

On 04/08/2020 23:42, Michael Jones wrote:
>
>
> On Tue, Aug 4, 2020, 17:12 Andrew Bartlett <abartlet at samba.org 
> <mailto:abartlet at samba.org>> wrote:
>
>     On Tue, 2020-08-04 at 13:08 -0500, Michael Jones via samba wrote:
>     > On Tue, Aug 4, 2020 at 1:05 PM Rowland penny via samba <
>     > samba at lists.samba.org <mailto:samba at lists.samba.org>> wrote:
>     >
>     > > On 04/08/2020 18:59, Michael Jones via samba wrote:
>     > > > I use systemd-timesyncd to sync time with the rest of the
>     > > > internet.
>     > >
>     > > This is not supported by Samba
>     > >
>     >
>     > Doesn't matter. It syncs the time on my host. Samba can just use the
>     > time I
>     > tell it.
>     >
>     >
>     > You do not seem to have set any external ntp servers.
>
>     That is, will ntpd report having good sync (and so serve to clients)
>     with the only time source being a stratum 10 fudge?
>
>     (S)NTP is more than just a 'tell me the time' protocol, and both
>     clients and servers try hard not provide or accept 'bad' time
>     estimates.
>
>     Andrew Bartlett
>
>
> Sure. All good points.
>
> Before I used systemd-timesyncd and the ntpd configuration that I sent 
> in my initial email. My windows domain members refused to sync time.
>
> After I added this config as I sent, they started syncing time.
>
> The existing documentation for ntpd (e.g. the man pages, online 
> resources, so on) is woefully under explained and straight up wrong in 
> a few minor areas that I don't recall the details of (nor are the 
> particularly relevant to the samba list. I suppose)
>
> Same goes for the samba configuration documented here : 
> https://wiki.samba.org/index.php/Time_Synchronisation
>
> The config as provided (with appropriate file path changes) didn't 
> work on my Gentoo system. Whether that's because Gentoo does things 
> weird or because the config is wrong, I don't know. This was also 
> about 6 months ago, so details are fuzzy.
>
It has worked well for myself using a Debian variant, so it sounds like 
something to do with Gentoo.

Rowland