| can be configured to integrate with your existing LDAP Active Directory server to authenticate users. There are two configuration options. Each one uses a different Security Manager. The first option is to use the LDAP Security Manager. Here the authentication is handed off to an external LDAP/AD system. 
The second option is to use the LDAP Container Security Manager. Here the server is deployed to an existing servlet container that is already handling user authentications through LDAP. Authentication, in this case, is the responsibility of the container.
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