limited accounts

[Jérémy Cluzel]

Hi,

I'm trying to setup a system which allow users to login for a specific 
period (1 month, or 1 week, it depends on the type of the account) since 
their first connection.
I manage to do this by a cron script which removes them from database, 
but it's (really) crap... Is there any proper way to do this ? counter 
module ?
I think this could better by modifying sql queries in "sql.conf" to 
calculate remaining time (until the end of this period) and send it as 
"Max-All-Session" attribute to the NAS, but I don't know if it's possible...

Moreover, I wish to use a "max consecutive time" too, which allow me to 
create user account valid for a limited period (1 month for ex.), with 
limited session time (3 hours max), and with a maximum "duration time" 
(10 hours). Is there any specific module to do this ?

Finally, if I want to limit access depending on the day of the week, or 
the hour, what's the best approach ?

Sorry for all these questions, I don't expect a complete solution from 
this forum (it's my work to find one), but simply some advices (or 
clues) on how it could (would ?) be done.

Regards,

Jeremy