[Samba] Description of LDAP-attribute sambaSIDList

Tony Earnshaw tonye at billy.demon.nl
Fri Apr 22 19:33:35 GMT 2005

Daniel Wilson wrote:

> So does this mean that everyone for example in GroupA could then also be 
> a member of GroupB if you added GroupA's SID into GroupB's 
> sambaSIDList...if so this would help us out soooo much as then we dont 
> need to keep adding people into multiple groups!

Yes, it does mean that. But this has also (always) been possible with 
Posix groups (a group can be a member of another group), for Unix/Linux 
groups. In this case, Hallvor Engen is saying that for Windows groups it 
can be done with group SIDs. I do it for OpenLDAP with Posix groups and 
MemberUid instead for Samba and that works just as well - where there's 
already a Posix group..

> could you give me the syntax so i can update my schema file (were using 
> Sun Directory Server 5.2 as our LDAP backend...)

I'm not sure what you mean by "syntax".  A group-mapping for the Posix 
group domadm might look like:

dn: cn=domadm,ou=groups,ou=smb,dc=billy,dc=demon,dc=nl
memberUid: Administrator
memberUid: root
memberUid: billy
memberUid: tonni
description: Local Unix group
objectClass: top
objectClass: posixGroup
objectClass: uidObject
objectClass: sambaGroupMapping
uid: domadm
cn: domadm
sambaGroupType: 2
sambaSID: S-1-5-21-18666911-1472750480-3707222013-512
gidNumber: 5004
displayName: Domain Admins
sambaSIDList: S-1-5-21-18666911-1472750480-3707222013-3001

where the value for the multi-value attribute sambaSIDList (there can be 
more than one attribute with different values) might be the SID for the 
Windows group "Administrative Staff". That might be a pure Windows group 
and not be present as a Posix group.

This ldif (in the form above) would most probably not be possible to 
generate on sites using the idealx scrips; I don't. And everybody would 
be far better off if they got and compiled GQ and played around with it, 
then they'd see this for themselves ;).



mail: tonye at billy.demon.nl

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