1. Free radius server implementation. XtRadius is a free radius server implementation. The main feature is that it can handle user accounting and authentication information via external fully configurable scripts. The Radius server is based on Cistron Radius 1.6.4. You can write script to make you own auth and/or accounting routines without having to patch the main server. Communication between XtRadius server and external scripts can be made using command line parameters or via environment variables. From Debian 3.0r0 APT