You use VMware® vCenter™ Single Sign-On to authenticate and manage users of VMware® vFabric™ Data Director. vCenter Single Sign-On is an authentication broker and a security token exchange that provides a secure way to access your vSphere and Data Director environments.

When you use Data Director with vSphere 5.1 and vCenter Single Sign-On, you do not log directly into vFabric Data Director and vCenter Server with a security domain defined only by your vFabric Data Director environment. When you log in to vFabric Data Director, you pass authentication to the vCenter Single Sign-On server, which you can configure with multiple identity sources such as Active Directory and OpenLDAP. After authentication, your user name and password are exchanged for a security token which you use to access vFabric Data Director.