Before you install Internet Connection Services for RAS, you should ensure that you have the required minimum hardware. To set up a minimal configuration of Internet Connection Services for RAS, you need two computers. The first computer, which will be used to install Phone Book Services and Internet Authentication Services, is your server computer. The second computer, which will be used to install the Connection Manager Administration Kit (CMAK) and the Phone Book Administrator tool, is your administrative computer. This section describes the minimum hardware and software requirements for each component in Internet Connection Services for RAS.