Maximum number of virtual servers?

Clayton Knorr clayton.knorr at
Wed Feb 15 20:29:53 CET 2017

They wouldn't all listen on different interfaces. We'd be storing the clients in ldap and defining which virtual server to use at that level. 

-----Original Message-----
From: Freeradius-Users [ at] On Behalf Of Arran Cudbard-Bell
Sent: Wednesday, February 15, 2017 2:26 PM
To: FreeRadius users mailing list <freeradius-users at>
Subject: Re: Maximum number of virtual servers?

> On 15 Feb 2017, at 19:22, Alan DeKok <aland at> wrote:
> On Feb 15, 2017, at 2:13 PM, Clayton Knorr <clayton.knorr at> wrote:
>> Any opinions (or hard facts) about the upper limit of virtual servers are advisable? Potentially more than 1,000 if we decide to go the virtual server route.
>  There is no limit.  The virtual servers are placed into efficient data structures (trees) so that having 1000 is not much more expensive than having 1.
>  That being said... 1000 seems a bit large.  Why do you need that many?

I could see the issue being select() if they’re bound to 1000+ interfaces.


Arran Cudbard-Bell <a.cudbardb at> FreeRADIUS Development Team

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