[Samba] id mapping on a dc+file server

[Rowland penny]

On 29/08/2019 18:10, Stefan G. Weichinger via samba wrote:
> On 29.08.19 18:56, Stefan G. Weichinger via samba wrote:
>> On 29.08.19 18:24, Stefan G. Weichinger via samba wrote:
>>> Am 29.08.19 um 18:10 schrieb Rowland penny via samba:
>>>
>>>>> after that this former DC should become a plain DM file server
>>>>>
>>>>> Should I rm /var/lib/samba before editing smb.conf and re-joining?
>>>>
>>>> Just remove the .tdb & .ldb files and any cache files, do not 
>>>> remove the
>>>> main directory structure (except for sysvol etc).
>>>
>>> ok, will try in about 30mins
>>> thanks!
>>>
>>
>> ok so far, works basically.
>> But when I compare the group "domain users" on the 2 fileservers I 
>> see this issue:
>>
>> # former fileserver
>>
>> # wbinfo --group-info="domain users"
>> domain users:x:10513:
>>
>> (correct to me)
>>
>> # new DM
>>
>> # wbinfo --group-info="domain users"
>> domain users:x:100:
>>
>> ("100" is wrong ...)
>
>
>
> "net cache flush" fixed it (for now)
>
> reading : 
> https://techblog.devlat.eu/2017/02/04/gid-of-the-domain-users-resetting-to-100-with-a-samba-ad-dc/
>
>
I think what happened was that samba picked up the winbind cache for the 
DC and 'net cache flush' emptied the cache, so you shouldn't have any 
further problems.

Rowland