http://freeradius.org/官网提供的最新源码
freeradius是一个非常好用的radius服务器
Stable Release
The "stable release" of FreeRADIUS is version 3. The goal of this version is stability. Version 3 introduces a number of major changes over Version 2. The debugging output is clearer (and colourised!), more errors are found while the configuration files are parsed instead of at run-time, RADIUS over TLS (i.e. RadSec) and RADIUS over TCP are supported. The raddb/ directory has been re-arranged so that files are easier to find.
