Stale sessions problem

Gerry Dalton gerry at
Sat Feb 25 14:56:20 CET 2006

Kinda depends on what he is connected to.  If you get a START record 
and a STOP record after the authentication from the device they are 
connected to you can check there.  If you use sql for accounting, 
there will be a record created with a unique session id for the 
customer, and it will have a start time, but the stop time will be blank.

This only is valid if the device they are connecting to supplies stop 
and start records when they logon and off or timeout.


At 02:40 AM 2/25/2006, you wrote:
>Alan DeKok wrote:
> > Georgi Alexandrov <georgi.alexandrov at> wrote:
> >
> >>If a user that somehow failed network connectivity and failed to tell
> >>the server "account stop" tries to reconnect back it won't let him
> >>because his previous session is stalled. I need a mechanism that will do
> >>a check upon connection if the session is stalled, delete it and let the
> >>user in or if there is already a real user logged in deny the connecting
> >>one.
> >>I read from the mailing lists that radzap should do the job but i can't
> >>seem to figure out how to integrate it in that setup (the man page
> >>explains only the syntax).
> >
> >
> >   radzap calls radwho to query radutmp and generates an accounting
> > stop message.
> >
> >   You can query your SQL database and generate accounting stop
> > messages, too.
> >
> >   Alan DeKok.
> >
> > -
> > List info/subscribe/unsubscribe? See 
> >
>Ehlo Alan,
>how could one know from the database (radacct i suppose) if a user
>session i stalled or he's actually online?
>Georgi Alexandrov
>Key Server = :: KeyID = 37B4B3EE
>Key Fingerprint = E429 BF93 FA67 44E9 B7D4  F89E F990 01C1 37B4 B3EE
>List info/subscribe/unsubscribe? See

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