Active Directory Federation Services (AD FS) provides simplified, secured identity federation and Web single sign-on (SSO) ...

Active Directory Federation Services (AD FS) provides simplified, secured identity federation and Web single sign-on (SSO) capabilities. AD FS includes a Federation Service that enables browser-based Web SSO, a Federation Service Proxy to customize the client access experience and protect internal resources, and Web Agents used to provide federated users with access to internally hosted applications.