Advanced LDAP user registry settings


To configure the advanced LDAP user registry settings when users and groups reside in an external LDAP directory.

To view this admin page...

  1. Click...

      Security | Global security

  2. Under User account repository, click the Available realm definitions drop-down list, select...

      Standalone LDAP registry | Configure

  3. Under Additional properties, click Advanced LDAP user registry settings.

Default values for all the user and group related filters are already completed in the appropriate fields. We can change these values depending on the requirements. These default values are based on the type of LDAP server that is selected in the Standalone LDAP registry settings panel. If this type changes, for example from Active Directory to Domino, the default filters automatically change. When the default filter values change, the LDAP server type changes to Custom to indicate that custom filters are used. When security is enabled and any of these properties change, go to the Global security panel and click Apply or OK to validate the changes.

User filter

LDAP user filter that searches the user registry for users.

This option is typically used for security role-to-user assignments and specifies the property by which to look up users in the directory service. For example, to look up users based on their user IDs, specify...

Data type: String

Group filter

LDAP group filter that searches the user registry for groups

This option is typically used for security role-to-group assignments and specifies the property by which to look up groups in the directory service.

Data type: String

User ID map

LDAP filter that maps the short name of a user to an LDAP entry.

Piece of information that represents users when users display. For example, to display entries of the object class = inetOrgPerson type by their IDs, specify inetOrgPerson:uid. This field takes multiple objectclass:property pairs delimited by a semicolon (;).

Data type: String

Group ID map

LDAP filter that maps the short name of a group to an LDAP entry.

Piece of information that represents groups when groups display. For example, to display groups by their names, specify *:cn. The asterisk (*) is a wildcard character that searches on any object class in this case. This field takes multiple objectclass:property pairs, delimited by a semicolon (;).

Data type: String

Group member ID map

LDAP filter that identifies user-to-group relationships.

For directory types SecureWay, and Domino, this field takes multiple objectclass:property pairs, delimited by a semicolon (;). In an objectclass:property pair, the object class value is the same object class that is defined in the group filter, and the property is the member attribute. If the object class value does not match the object class in the group filter, authorization might fail if groups are mapped to security roles.

For IBM Directory Server, Sun ONE, and Active Directory, this field takes multiple group attribute:member attribute pairs delimited by a semicolon (;). These pairs are used to find the group memberships of a user by enumerating all the group attributes that are possessed by a given user. For example...

    memberof:member Active Directory
    ibm-allGroup:member IBM Directory Server

This field also specifies which property of an object class stores the list of members belonging to the group represented by the object class.

Data type: String

Perform a nested group search

Recursive nested group search.

Select this option if the LDAP server does not support recursive server-side group member searches and if recursive group member search is required. It is not recommended that you select this option to locate recursive group memberships for LDAP servers. Application server security leverages the recursive search functionality of the LDAP server to search a user's group memberships, including recursive group memberships. For example:

  • IBM Directory Server is preconfigured by the application server security to recursively calculate a user's group memberships using the ibm-allGroup attribute.

  • SunONE directory server is preconfigured to calculate nested group memberships using the nsRole attribute.

Data type: String

Kerberos user filter

Kerberos user filter value. This value can be modified when Kerberos is configured and is active as one of the preferred authentication mechanisms.

Data type: String

Certificate map mode

Whether to map X.509 certificates into an LDAP directory by EXACT_DN or CERTIFICATE_FILTER. Specify CERTIFICATE_FILTER to use the specified certificate filter for the mapping.

Data type: String

Certificate filter

Filter certificate mapping property for the LDAP filter. The filter is used to map attributes in the client certificate to entries in the LDAP registry.

If more than one LDAP entry matches the filter spec at runtime, authentication fails because the result is an ambiguous match. The syntax or structure of this filter is:

The left side of the filter spec is an LDAP attribute that depends on the schema that the LDAP server is configured to use. The right side of the filter spec is one of the public attributes in the client certificate. The right side must begin with a dollar sign ($) and open bracket ({) and end with a close bracket (}).

Use the following certificate attribute values on the right side of the filter specification. The case of the strings is important:

  • ${UniqueKey}

  • ${PublicKey}

  • ${IssuerDN}

  • ${Issuer<xx>}

    <xx> is replaced by the characters that represent any valid component of the Issuer Distinguished Name. For example, we might use ${IssuerCN} for the Issuer Common Name.

  • ${NotAfter}

  • ${NotBefore}

  • ${SerialNumber}

  • ${SigAlgName}

  • ${SigAlgOID}

  • ${SigAlgParams}

  • ${SubjectDN}

  • ${Subject<xx>}

    <xx> is replaced by the characters that represent any valid component of the Subject Distinguished Name. For example, we might use ${SubjectCN} for the Subject Common Name.

  • ${Version}

Data type: String





 

Related tasks

Set LDAP user registries
Standalone LDAP registry settings