Hi All * * *for some reason (change database structure and limitation on sql module for sql connection and ...) i need to develop something like SQL module to exchange check data in all section on my database .* * * *so in need to know what exactly sql module do in each section ( such as authorize , authenticate, accounting , ...).* * * *i can not find any detailed document on this.* * * *i just know that i should read all check data and fill them in related attribute (control attribute) in authorize section and for accounting section i need to update database by request attribute that received .* * * *i think that i miss something but i can not find ....* * * * * *can any one help on this ?* * * *do we have any list of attribute that i should fill in any section ? specially in authenticate section that other module need information from database (check attribute).* * * * * *Best ergards.*