DACS is a light-weight single sign-on and role-based access control system providing flexible, modular authentication methods and powerful, transparent rule-based authorization checking for Web services, CGI programs, or virtually any program. License: OSI Approved Changes: This release features some significant performance and administrative improvements, including a new indexing mechanism for access control rules to accelerate searches, re-introduction of the authorization caching feature to optionally bypass authorization checking of requests after they have been approved once, and a complete rewrite of the dacs_admin Web service to provide a fully REST-ful, unified, and comprehensive administrative Web-based console.

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