Hello, Reading this mailing list late messages (from last October up to now), I noticed most if not all, questions related to Simultaneous-Use setting mentioned some sort of database. 1. Is it possible to set a value for Simultaneous-Use parameter and still define authorized users with a simple file or is it required to use some sort of database (*) ? My target implementation is Debian Stretch with Freeradius 3.0.12. With it, I defined what I call users in a file /etc/freeradius/3.0/mods-config/files/authorize with entries such as : 999_9999 Cleartext-Password := "mysuperpassword" 2. If possible, can set this Simultaneous-Use within this authorize file or shall I use an other file (I'm thinking of /etc/freeradius/3.0/mods-config/files/accounting ? Setting either a value that applies to all or to a specific entry would be fine for me. (*) I'm far from opposing to hold user data in a database but I'm working on controlling guest access to a WiFi network. I suspect I still have several things to learn about the way a WiFi access point and a Radius server interact. So I conviced myself using plain config files is an appropriate first step. Best regards