Advanced Lightweight Directory Access Protocol user registry settings

Use this page to configure the advanced Lightweight Directory Access Protocol (LDAP) user registry settings when users and groups reside in an external LDAP directory.

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Security | Global security | LDAP | Advanced Lightweight Directory Access Protocol (LDAP) user registry settings

Default values for all the user and group related filters are already completed in the appropriate fields. You can change these values depending on your requirements. These default values are based on the type of LDAP server selected in the LDAP settings panel. If this type changes (for example from Netscape to Secureway) 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.

 

Configuration tab

User filter

Specifies the LDAP user filter that searches the user registry for users.

This option is typically used for security role to user assignments. It 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 (%(uid=%v)(objectclass=inetOrgPerson)). For more information about this syntax, see the LDAP directory service documentation.

Data type: String

Group filter

Specifies the LDAP group filter that searches the user registry for groups

This option is typically used for security role to group assignments. It specifies the property by which to look up groups in the directory service. For more information about this syntax, see the LDAP directory service documentation.

Data type: String

User ID map

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

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

Data type: String

Group ID Map

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

Specifies the piece of information that represents groups when groups appear. 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

Specifies the 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 objectclass value is the same objectclass that is defined in the Group Filter, and the property is the member attribute. If the objectclass value does not match the objectclass in Group Filter, authorization might fail if groups are mapped to security roles. For more information about this syntax, see your LDAP directory service documentation.

For IBM Directory Server, Sun ONE, and Active Directory, this field takes multiple (group attribute:member attribute) pairs delimited by a semicolon (;). They are used to find the group memberships of a user by enumerating all the group attributes possessed by a given user. For example, attribute pair (memberof:member) is used by Active Directory, and (ibm-allGroup:member) is used by IBM Directory Server . This field also specifies which property of an objectclass stores the list of members belonging to the group represented by the objectclass. For supported LDAP directory servers, see "Supported directory services".

Data type: String

Specifies a recursive nested group search.

Select this option if the Lightweight Directory Access Protocol (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. WebSphere security leverages the LDAP server's recursive search functionality to search a user’s group memberships, including recursive group memberships. For example:

  • IBM Directory Server is pre-configured by WAS security to recursively calculate a user’s group memberships using the ibm-allGroup attribute

  • SunONE directory server is pre-configured to calculate nested group memberships using the nsRole attribute

Data type: String

Certificate map mode

Specifies 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

Specifies the 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 specification at run time, then authentication fails because it results in an ambiguous match. The syntax or structure of this filter is: LDAP attribute=${Client certificate attribute} (for example, uid=${SubjectCN}). The left side of the filter specification is an LDAP attribute that depends on the schema that your LDAP server is configured to use. The right side of the filter specification is one of the public attributes in your 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}
  • ${PublicKey}
  • ${Issuer}
  • ${NotAfter}
  • ${NotBefore}
  • ${SerialNumber}
  • ${SigAlgName}
  • ${SigAlgOID}
  • ${SigAlgParams}
  • ${SubjectCN}
  • ${Version}

Data type: String


 



 

 

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