The Radiator installation requires approximately 32Mb of disk space. RAM requirements depend strongly on your Radiator configuration and the types of authentication methods being used.

If EAP authentication is not used, Radiator typically starts running at about 20Mb and may grow to around 50Mb and plateau as RADIUS requests are received.

If EAP authentication types, such as TLS, TTLS or PEAP, are used, more memory is needed. This is because Radiator must cache per-user TLS session information in its process memory. If you are handling large numbers of TLS authentications, you also need more memory.