freeradius + 800 users :-(

[Mipam]

Hi,

I hoped for some input and suggestions how to administrate a Fbsd system
with freeradius and must have about 800 radiususers.
That is, the machines acts as radius server. Another machine will file a
radius authentication request to the server to give access to certain
users. But 800 users is a lot and sometimes users will be removed and be
added etc. Does anybody have suggestions how to maintain such a system
and a mechanism to remove and add users?

Of course the simple way like ssh access and manually add or remove dns
users is possible. But is there also something else possible with isnt
insecure ass well? Any hints etc?
Bye,

Mipam.