Binary package “xtradius” in ubuntu lucid

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 1.6.6. 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.