[Samba] Samba rejecting authentication from Windows machines

Kees van Vloten keesvanvloten at gmail.com
Thu Jul 20 14:51:52 UTC 2023

On 20-07-2023 16:23, Rowland Penny via samba wrote:
> On 20/07/2023 15:02, Kothe Patrik via samba wrote:
>> What version of Samba are the DCs running and on what OS ?
>>          --> They're still running on 4.13.17 and Debian 10 since 
>> that's the pre-packed version we started with and didn't dare to 
>> upgrade so far.
>> Was anything updated on any of the machines ? If so, what ?
>>          --> No. We had our monthly maintenance window but there were 
>> no upgrades to the Samba DCs
>> This could be more fall out from Microsoft's last update
>>          --> What do you mean with this? I haven't read anything in 
>> this direction while searching for the issue.
> On the 7th July, Microsoft released a large update, KB5028166 (this 
> also seems to have different identities on different Windows 
> versions), after the update there were numerous Samba problems, mostly 
> to do with trusts and authentication. an interim patch was quickly 
> produced and this seems to have mitigated the problem.
> I would suggest that upgrading Samba is probably your next step, but 
> you will probably have to upgrade to bullseye or bookworm.

Yesterday's Samba patch release includes the interim patch mentioned 
above. Packages with those updates for bullseye an bookworm are already 
available in Michael's repo. (Great work, Michael !)

- Kees.

> Rowland

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