samba - Aug 2023 - Samba domain time sync woes (Debian Bookworm)

On 09.08.2023 10:08, Luis Peromarta via samba wrote:
> I had the impression (out of NTP/ chrony config of DCs) they were getting
time from upstream NTP servers ?
>
> LP
> On 9 Aug 2023 at 09:52 +0200, samba at lists.samba.org, wrote:
>> the DCs get
>> their time from the DC with the PDC_Emulator FSMO role.
Hi,

I have checked up which one of my 2 DCs (Debian Bookworm, Samba 4.17.9) 
that has got the FSMO roles. The one with the FSMO roles does not supply 
time to the Windows client I checked. Doesn't it depend on which of the 
DCs that is listed first in the DNS list? Shouldn't any DC be able to 
supply time services, in case other ones are off line?

Well, this is nitpicking, but every bit of knowledge is precious.

Thanks for your comments.

Best regards,

Peter

On 09/08/2023 09:26, Peter Milesson via samba wrote:
> 
> 
> On 09.08.2023 10:08, Luis Peromarta via samba wrote:
>> I had the impression (out of NTP/ chrony config of DCs) they were 
>> getting time from upstream NTP servers ?
>>
>> LP
>> On 9 Aug 2023 at 09:52 +0200, samba at lists.samba.org, wrote:
>>> the DCs get
>>> their time from the DC with the PDC_Emulator FSMO role.
> Hi,
> 
> I have checked up which one of my 2 DCs (Debian Bookworm, Samba 4.17.9) 
> that has got the FSMO roles. The one with the FSMO roles does not supply 
> time to the Windows client I checked. Doesn't it depend on which of the
> DCs that is listed first in the DNS list? Shouldn't any DC be able to 
> supply time services, in case other ones are off line?
> 
> Well, this is nitpicking, but every bit of knowledge is precious.
> 
> Thanks for your comments.
> 
> Best regards,
> 
> Peter
> 
> 
Windows clients can and will use any DC, The DCs are supposed to get 
their time from the DC that holds the PDC_Emulator FSMO role.

Trying reading this:  https://wiki.samba.org/index.php/Time_Synchronisation

Paying particular attention to the pretty diagram.

Rowland