From the Back:

Master all the customizable features that make GNU Radius so great, taught by the program's author.  Design authentication and accounting tables to meet your needs exactly.  Communicate with MySQL, PostgreSQL, ODBC, Radius and even non-standard servers.  Use GNU Radius on a single server or run a whole ISP.

GNU Radius is a server program for remote user authentication and accounting.  It is useful in a wide variety of applications from dial-up user services to voice-over IP systems.  Designed to handle ISP workloads, it can be scaled for any network that needs a centralized authentication and/or accounting service for its workstations.  Use the built-in extension language to write your own special-case rules for parsing and restructuring non-standard terminal server packets.  GNU Radius is highly extensible and can be easily adapted to your system's needs.

GNU Radius has several built-in accounting methods:

• SQL accounting
• Unix accounting
• Plain text detailed accounting
• Or create your own accounting method with your choice of the two built-in extension languages!

GNU Radius supports a wide variety of authentication methods:

• User supplied authentication data via answering terminal server login/password prompts
• PAP or CHAP protocols
• System or internal database storage
• SQL or PAM authentication

GNU Radius allows any authentication and accounting table structure, and the system administrator designs Radius's queries used to store and retrieve records.  Perfect for creating non-English user interfaces.

About the Book:

The manual will allow a novice user to master the GNU Radius system. It assumes the reader has basic knowledge about UNIX-like systems and general networking.  No knowledge of the Radius protocol is assumed.

About the Author:

Sergey Poznyakoff is the author and maintainer for GNU Radius.  He was born in 1970 in Odessa, Ukraine and graduated from the Odessa State Maritime Academy.  He works in Odessa as a programmer and system administrator on UNIX-like systems, and actively volunteers for several GNU Projects.