Implement better radius support

config/radius.config.js

@@ -1,5 +1,10 @@
+const uuid = require('uuid')
+
 const radius_config = {
+    enable: env('RADIUS_ENABLE', false),
     port: env('RADIUS_PORT', 1812),
+    interface: env('RADIUS_INTERFACE', '0.0.0.0'),
+    secret: env('RADIUS_SECRET', uuid.v4()),
 
     cert_file: {
         public: env('RADIUS_CERT_FILE'),