Hello, I know that by default you configure your radius clients in the file /etc/raddb/clients.conf However I would like them to be entered in MySQL I have modified the file /etc/raddb/sites-enabled/default and I expect the Freeradius server to check the clients in MySQL instead of clients.conf authorize { sql #files } And added an input into the nas table INSERT INTO nas VALUES (NULL , '192.168.0.1', 'myNAS', 'other', NULL , 'mysecret', NULL , NULL , 'RADIUS Client' ); Unfortunately this doesn't work because 1) $ radtest testuser passsecret 127.0.0.1 1812 testing123 <= works and testing123 is what is specified in clients.conf 2) $ radtest testuser passsecret 127.0.0.1 1812 mysecret <= doesn't work and what's specified in the nas table Since I have commented "files" I would also expect the freeradius server not to check clients.conf Could someone point out my misunderstanding ? Thank you