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Re: [Samba] Unterstanding idmap config




On Fri, 3 Feb 2017 17:06:07 +0100
basti via samba <samba@xxxxxxxxxxxxxxx> wrote:

> Hello,
> in my samba NT4 i have some low uid. Rowland Penny suggest to set it
> higher. So far OK.
> 
> I config my AD member as followed:
> 
> # Default ID mapping configuration for local BUILTIN accounts
> # and groups on a domain member. The default (*) domain:
> # - must not overlap with any domain ID mapping configuration!
> # - must use an read-write-enabled back end, such as tdb.
> idmap config * : backend = tdb
> idmap config * : range = 1000-6999
> 
> 
> # idmap config for the SAMDOM domain
> idmap config foo:backend = ad
> idmap config foo:schema_mode = rfc2307
> idmap config foo:range = 7000-999999
> 
> After I flush the cache with "net cache flash" i can see the same uid
> on my member as on my AD DC. so Far OK, that is what i would.
> 
> The uid i see from LDAP is 1007.
> 
> What does the config * mean?
> Why can I see a user with uid 1007 from domain when domain start at
> 7000?
> 


The '*' domain is for what is known as the 'Well Known SIDs' and
anything not in the 'FOO' domain.
See here for the well Known SIDs:

https://support.microsoft.com/en-us/help/243330/well-known-security-identifiers-in-windows-operating-systems

You don't really need to see them, they are (mostly) not needed on a
Unix machine.

Rowland

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