...
mods-available/eap - Configuration file for EAP module
users - In the default configuration, a text file based user database
By default, the 'default' and 'inner-tunnel' sites are enabled. 'default' is the outer tunnel, it listens for incoming requests from the NASes, 'inner-tunnel' receives requests tunneled in the TLS encryption over EAP over RADIUS, forwarded by the outer-tunnel.
...