LDAP
LDAP authentication relies on the use of an LDAPv3–compliant server. This module enables authentication using LDAP bind, a Directory Server operation which associates a user ID password with a particular LDAP entry. You can define multiple LDAP authentication configurations for an organization. The attributes are:
Primary LDAP Server
Specifies the host name and port number of the primary LDAP server specified during Federation Manager installation. This is the first server contacted for authentication. The format ishostname:port. If there is no port number, assume 389. Multiple entries must be prefixed by the local server name.
If you have Federation Manager deployed with multiple domains, you can specify the communication link between specific instances of Federation Manager and Directory Server in the following format:
local-servername|server:port local-servername2|server2:port2 ...
For example, if you have two Federation Manager instances deployed in different locations (L1-machine1-IS and L2- machine2-IS) communicating with different instances of Directory Server (L1-machine1-DS and L2-machine2-DS), it would look like the following:
L1-machine1-IS.example.com|L1-machine1-DS.example.com:389
L2-machine2-IS.example.com|L2-machine2-DS.example.com:389
Secondary LDAP Server
Specifies the host name and port number of a secondary LDAP server available to the Federation Manager platform. If the primary LDAP server does not respond to a request for authentication, this server would then be contacted. If the primary server is up, Federation Manager will switch back to the primary server. The format is also hostname:port. Multiple entries must be prefixed by the local server name.
Caution – When authenticating users from a Directory Server that is remote from the Federation Manager enterprise, it is important that both the Primary and Secondary LDAP Server Ports have values. The value for one Directory Server location can be used for both fields.
DN to Start User Search
Specifies the DN of the node where the search for a user would start. (For performance reasons, this DN should be as specific as possible.) The default value is the root of the directory tree. Any valid DN will be recognized. If OBJECT is selected in the Search Scope attribute, the DN should specify one level above the level in which the profile exists. Multiple entries must be prefixed by the local server name. The format is servername|search-dn. For multiple entries:
servername1|search-dn servername2|search-dn servername3|search-dn
If multiple users are found for the same search, authentication will fail.
DN for Root User Bind
Specifies the DN of the user that will be used to bind to the Directory Server specified in the Primary LDAP Server and Port field as administrator. The authentication service needs to bind as this DN in order to search for a matching user DN based on the user login ID. The default is amldapuser. Any valid DN will be recognized.
Password for Root User Bind
Carries the password for the administrator profile specified in the DN for Root User Bind field. There is no default value. Only the administrator's valid LDAP password will be recognized.
Password for Root User Bind (confirm)
Confirm the password.
Attribute Used to Retrieve User Profile
Specifies the attribute used for the naming convention of user entries. By default, Federation Manager assumes that user entries are identified by the uid attribute. If your Directory Server uses a different attribute (such as givenname) specify the attribute name in this field.
Attributes Used to Search for a User to be Authenticated
Lists the attributes to be used to form the search filter for a user that is to be authenticated, and allows the user to authenticate with more than one attribute in the user's entry. For example, if this field is set to uid, employeenumber, and mail, the user could authenticate with any of these names.
User Search Filter
Specifies an attribute to be used to find the user under the DN to Start User Search field. It works with the User Naming Attribute. There is no default value. Any valid user entry attribute will be recognized.
Search Scope
Indicates the number of levels in the Directory Server that will be searched for a matching user profile. The search begins from the node specified in the DN to Start User Search attribute. The default value is SUBTREE. One of the following choices can be selected from the list:
- OBJECT
-
Searches only the specified node.
- ONELEVEL
-
Searches at the level of the specified node and one level down.
- SUBTREE
-
Search all entries at and below the specified node.
Enable SSL to Access LDAP Server
Enables SSL access to the Directory Server specified in the Primary and Secondary LDAP Server and Port field. By default, the box is not checked and the SSL protocol will not be used to access the Directory Server.
If the LDAP Server is running with SSL enabled (LDAPS), you must make sure that Federation Manager is configured with proper SSL trusted certificates so that it can connect to DirectoryServer over LDAPS protocol
Return User DN to Authenticate
When the Federation Manager directory is the same as the directory configured for LDAP, this option may be enabled. If enabled, this option allows the LDAP authentication module to return the DN instead of the User ID, and no search is necessary. Normally, an authentication module returns only the User ID, and the authentication service searches for the user in the local Federation Manager LDAP. If an external LDAP directory is used, this option is typically not enabled.
LDAP Server Check Interval
This attribute is used for LDAP Server failback. It defines the number of minutes in which a thread will “sleep” before verifying that the LDAP primary server is running.
User Creation Attribute List
This attribute is used by the LDAP authentication module when the LDAP server is configured as an external LDAP server. It contains a mapping of attributes between a local and an external Directory Server. This attribute has the following format:
attr1|externalattr1
attr2|externalattr2
When this attribute is populated, the values of the external attributes are read from the external Directory Server and are set for the internal Directory Server attributes. The values of the external attributes are set in the internal attributes only when the User Profileattribute (in the Core Authentication module) is set to Dynamically Created and the user does not exist in local Directory Server instance. The newly created user will contain the values for internal attributes, as specified in User Creation Attributes List, with the external attribute values to which they map.
Authentication Level
The authentication level is set separately for each method of authentication. The value indicates how much to trust an authentication mechanism. Once a user has authenticated, this value is stored in the SSO token for the session. When the SSO token is presented to an application the user wants to access, the application uses the stored value to determine whether the level is sufficient to grant the user access. If the authentication level stored in an SSO token does not meet the minimum value required, the application can prompt the user to authenticate again through a service with a higher authentication level. The default value is 0.
Note –
If no authentication level is specified, the SSO token stores the value specified in the Core Authentication attribute Default Authentication Level.
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