[Samba] ID Mapping

O'Connor, Daniel darius at dons.net.au
Tue Nov 3 12:05:27 UTC 2020

> On 3 Nov 2020, at 19:24, Stefan Kania via samba <samba at lists.samba.org> wrote:
> Am 03.11.20 um 05:38 schrieb O'Connor, Daniel via samba:
>> Hi,
>> I have a Samba 4.11.8 system running as an AD and a file server and I am wondering what sort of ID mapping is done in this situation.
>> I have uidNumber on each user set to use UIDs in the 1000 range but I find that they end up in the 3000000 range instead.
>> Is this a fixable problem, or a result of having the file server and DC as the same machine?
>> Thanks.
> On an DC the mapping starts allway with 3.000.000 you cant change it.
> That's the reason why you should not use a DC as fileserver

OK, it would be nice if that was documented.

IMHO just saying "don't do it!" without providing the details of the downsides does make it difficult to make an informed decision about a deployment.

Daniel O'Connor
"The nice thing about standards is that there
are so many of them to choose from."
 -- Andrew Tanenbaum

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