intermediate certificate handling

hi, not really covered on the WIKI and there is some stuff on the mailing list archives so it would be good for some clarification. if a RADIUS server has a certificate that has been signed by an intermediate certificate, what is the corretc process to ensure that the client is happy with the RADIUS cert. I believed that the process is something like certificate_file = server.crt where server.crt contains the server cert, the intermediate cert and then the root cert all concatenated together ..and then CA_file which isnt used at all for PEAP or EAP-TTLS can then be just ignored. I , personally, have a self signed cert as per recommendation but is the above generally correct alan