help

Hello, Here is my question: i would like to créate a proxy freeradius. I have 3 forests, 3 data base for storing users. I want to know how to configure: 1. proxy freeradius with IAS in each forest, how to give to freeradius server the certificat stored in active directory? 2. Is it possible to configure proxy freeradius to forward requests directly to Active Directory without IAS (3 Active directory). Thank you very much for you answer. Have a good day.