Hello, I have setup the FreeRadius like the following to prevent a user from logging in after his monthly usage has been exceeded. echo 'ATTRIBUTE Monthly-Usage 3001 integer64' >> /etc/freeradius/3.0/dictionary sed -i '/authorize {/a\ update request {\ Monthly-Usage = "%{sql:SELECT COALESCE((SUM(`acctoutputoctets`)), 0) FROM radacct WHERE `username`='"'"'%{User-Name}'"'"' AND Month(acctupdatetime)=(Month(NOW())) AND Year(acctupdatetime)=Year(NOW())}"\ }\ ' /etc/freeradius/3.0/sites-enabled/default INSERT INTO radcheck (username,attribute,op,VALUE) VALUES ('houman','Monthly-Usage','<',10000); While this works fine, the user won't be disconnected after the monthly-usage has been exceeded. Instead only if the user disconnects voluntarily and tries to reconnect again would he be prevented. So I'm trying to find a way to disconnect the user the moment his limit has been reached. After some research I have come across Dynamic Authorization extension and have enabled it like this: *dae {* * enable = yes * * listen = 0.0.0.0 * * port = 3799 * * secret = secret123 * *}* Now I can disconnect myself from the command line, like this: *echo User-Name=houman | radclient -x 127.0.0.1:3799 <http://127.0.0.1:3799> disconnect ''secret123''* That's very nice. So I could run a Python script via a crontab job to check every minute to see which users have exceeded their monthly-usage and disconnect them. But I was wondering if there is a way to automate the disconnect directly via free radius so that I don't have to run the crontab job. Is there a way that I'm overlooking? Many Thanks, Houman