ClearBox is a reliable and fast authentication and accounting server for TACACS and RADIUS. Besides working both as a target and RADIUS proxy server and providing flexible authentication and authorization rules and policies, ClearBox RADIUS and TACACS Server works with unlimited realms with independent configuration, and authenticates against remote RADIUS servers, Windows NT/2000 domains, workgroups and groups, the Windows 2000 Active Directory, the MS SQL Server, MS Access, and other ODBC- and OLE-DB-compliant data sources. ClearBox can forward accounting requests to remote RADIUS servers, or log accounting data into an SQL database table or a file in CSV or Livingston format.