Hi, I am trying to set up a FreeRadius server for a VPN connection used by users stored in an LDAP or in an AD. I succeeded to authenticate on LDAP and on AD separately with the two following radtest commands : LDAP : radtest dclavier "password" localhost 0 testing123 AD : radtest -t mschap dclavier "Password1234*" localhost 0 testing123 However, I would like to configure the FreeRadius server to authenticate users on LDAP or AD, based on the realm. For example, user dclavier@ldap.com should use ldap authentication, and dclavier@ad.com should use mschap authentication (or ntlm_auth) without specifying which method to use. So, I would like FreeRadius to choose the right Auth-Type according to the realm. At least, I would like FreeRadius to try the second auth-type if the first failed. I looked at the proxy.conf file to perform what I want, but I can't find how to specify the auth type for each realm. So I would like to know if it is possible to perform authentication for users from LDAP and users from AD with only one FreeRadius server. If yes, I would be happy if you can suggest how to do it. Regards, Denis CLAVIER