Published with LMOS version 7.2.48.4 LTS. This document is intended to be used by anyone who is interested in learning more about using RADIUS authentication and authorization in the LoadMaster. The purpose of this document is to provide further information and steps on configuring RADIUS authentication and authorization. The steps in this document have been tested and validated on Windows Server 2008 R2. RADIUS in Windows Server 2008 R2 is done with network policy and access services. The LoadMaster passes the user's details to the RADIUS server and the RADIUS server informs the LoadMaster whether the user is authenticated or not. The Remote Access Dial In User Service (RADIUS) server can be used to authenticate users who log in to the Kemp LoadMaster.