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We have solved this and our solution may help others. Here's how we tackled it.
We have an Active Directory with subsidiary OU - Organisational Units - very very many of them.
We wanted to authenticate against a user whose ID was held in an Active Directory Group in this part of the LDAP tree (we used Softerra LDAP Browser to enumerate the tree):
CN=MCS-Users,OU=Groups,OU=MCT,DC=open,DC=ac,DC=uk
For the Notes Database ACL therefore we re-expressed this as:
cn=mcs-users/ou=groups/ou=mct/dc=open/dc=ac/dc=uk
and created a 'Person Group' entry on the Notes dB.
The trick to making this resolve lies in the Directory Assistance settings document of course. We had to include these 2 Directory Assistance settings documents to ensure that everything works properly both for individuals and for groups. The key lies in the very complex expressions for enumerating the lookup int he 'Authentication Filter' and Authorization Filter sections of the first item:
ITEM 1
Basics
Domain type: LDAP
Domain name: nnnnnnn
Company name: nn nnnnn nnnnnnnnn
Search order: 2
Make this domain available to: Notes Clients & Internet Authentication/ Authorization; LDAP Clients
Group authorization: Yes
Use exclusively for group authorization or credential authentication: Yes
Nested group expansion: Yes
Enabled: Yes
SSO Configuration
Attribute to be used as name in an SSO token (map to Notes LTPA_UsrNm):
Windows single sign-on for Web clients
Tab 2
- Use the first rule to configure the Base for this LDAP server
OrgUnit4
OrgUnit3
OrgUnit2
OrgUnit1
Organization
Country
Enabled
Trusted for Credentials
N.C. 1: */ */ */ */ */ * Yes Yes
N.C. 2: / / / / / No No
N.C. 3: / / / / / No No
N.C. 4: / / / / / No No
N.C. 5: / / / / / No No
Configure Directory Assistance access to a remote LDAP server.
Domain type: LDAP
Domain name: OULDAP
Company name: nnnnnnnnnn
Search order: 3
Make this domain available to: Notes Clients & Internet Authentication/ Authorization
Group authorization: No
Use exclusively for group authorization or credential authentication: Yes
Enabled: Yes
SSO Configuration
Attribute to be used as name in an SSO token (map to Notes LTPA_UsrNm):
Windows single sign-on for Web clients
- Use the first rule to configure the Base for this LDAP server
OrgUnit4
OrgUnit3
OrgUnit2
OrgUnit1
Organization
Country
Enabled
Trusted for Credentials
N.C. 1: */ */ */ */ */ * Yes Yes
N.C. 2: / / / / / No No
N.C. 3: / / / / / No No
N.C. 4: / / / / / No No
N.C. 5: / / / / / No No
Configure Directory Assistance access to a remote LDAP server.