Hi , I am a newbie in Radius field. I have a Linux machine which has RHEL WS 4 Update 5 OS loaded. I have installed freeRadius server version 2.1.5. in another machine. I want to authenticate the linux machine login through Radius server. I have tried several ways to configure the linux machine as published in several groups but did not work.Tried through PAM module. If some body can help me out in this matter or point to some good links,will be helpful to me. Best Regards Praveen