block users on-the-fly

Owen DeLong owen at
Mon Oct 16 16:54:10 CEST 2006

On Oct 16, 2006, at 6:25 AM, Guilherme Franco wrote:

> Hi,
> Does anyone already have a program to block freeradius on-the-fly?
> ie: user has PAID = YES in radcheck table. Whenever I set PAID = NO,
> the user would no longer authenticate the next time he/ she logs in.
> OK, this works, but, if the user is already loged in, even if I set
> PAID = NO, the user would not be rejected (for obvious reasons). This
> is important because the grand number of Router mode ADSL users, that
> never logs out. I'm building a program to verify every x minutes the
> database and if PAID = NO, return a flag to freeradius and then reject
> the user.
> Is there any other means to do that?
> Thanks.
> - List info/subscribe/unsubscribe? See 
> list/users.html

The radius protocol only supports processing of authentication requests.
Unless you can get your hardware to send a periodic re-auth request,
there's no way to have them processed by radius again no matter what
you do to the database.  Radius has no "push" capability.

Your options are:
	+	Get your hardware to re-auth periodically.
	+	Use another process to boot users (forcing a reauth) when you
		change the database.


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