Problems creating a Samba4 LDAP Backend
lukeh at padl.com
Sat Mar 22 15:25:09 GMT 2008
On 22/03/2008, at 10:17 AM, Andrew Morgan wrote:
> On Sat, 22 Mar 2008, Luke Howard wrote:
>>>> To me, this says that the directory does an internal group search
>>>> generate the isMemberOf attribute on the fly. I believe this is
>>>> the way
>>>> Active Directory handles the memberOf attribute as well.
>>> IIRC in AD memberOf is a linked attribute, stored permanently.
>> From memory, AD stores the entry IDs of the link tuples in a
>> separate table, so both "member" and "memberOf" are ostensibly
>> generated on the fly. But this is really an implementation decision
>> (although things do start to get interesting when dealing with
>> references across partition boundaries).
> I noticed that the memberOf tab in AD Users and Computers does not
> show group membership for groups that are not in the same domain as
> the user. Access controls were still correctly applied though, so
> those interfaces must be enumerating group membership some other way.
Right, this is because it's expensive (I think they'll show such
memberships if you query through the GC port  but that requires
you talk to a GC).
When a non-GC KDC builds a PAC, it will contact a GC over RPC to
complete the user's token (cf. IDL_DRSGetMemberships).
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