Thanks Ivan Kalik, Now my server is authenticating the users (Linux and Windows). First. How I reply to my email go in the thread. I need set some attribute? Second. The next step is migrate my users to MySQL  or PostgreSQL database. So I need alter the file sites-available/default to include the line sql and remove the lines unix and files. Is this? I think that the http://wiki.freeradius.org/SQL_HOWTO has a how-to out-of-date because I don't find the schema to the table usergroup. Third. I set the    Framed-IP-Address := 192.168.2.253,    Framed-IP-Netmask = 255.255.255.0 to my user, but I don't receive this IP on my machine. I disable the DHCP on my AP and continue not receive this configuration. I need install a DHCP server on my server and close MACxIP to send this configurations to my machine? No more, thanks again. Inácio Alves http://www.polluxweb.com/inacioalves/site