Now its time to configure to log into SQL :) Until now we uses cisco wireless controller and only allow two connection for all users. I wanted to implement Simultaneous-user based in student and staff. and want to use sql for it. My users are authenticate against AD (samb +ntml_auth). So here is what I did : 1. Created database radius. 2. Populated admin.sql into the mysql 3. Populated schema.sql into the radius database 4. Enabled sql.conf in /etc/raddb/radius.conf 5. Disabled radutmp and enabled sql in accounting section in /etc/raddb/site-enabled/default 6. So, added DEFAULT Simultaneous-Use := 2 in /etc/raddb/users file for testing 7. restarted radius - try logging few users But I do not see any tables in radius database been updated. I just wanted to use session for the simultaneous user for restrict user. if this works then I can write regex to query LDAP if x is staff or student. Point me if i am doing wrong or some docs where I can see more reading reading reading. K