FreeRadius Server Sizing recommendations

Dennis Xu dxu at
Tue Sep 2 20:57:26 CEST 2014

I am not sure about the certificate size. But it will be using 2048bit key. The concurrent authentication request will be less than 10 per second. Backend authentication will use Active Directory.



----- Original Message -----
From: "A L M Buxey" <A.L.M.Buxey at>
To: dxu at, "FreeRadius users mailing list" <freeradius-users at>
Sent: Tuesday, September 2, 2014 10:45:10 AM
Subject: Re: FreeRadius Server Sizing recommendations


> Does FreeRadius has a server sizing guide to help people to choose the right hardware? I want to deploy two Linux servers(on VMware) in active/standby mode to serve maximum 5k PEAP authentication users. What would be the recommended server specs(such as CPU,RAM,Storage,IOPs) for this deployment?

certificate size? concurrent authentication requests? backend authentication method? 

there is no direct sizing guide but there are benchmarking tools that you can use to get a measure of


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