If you want to use Debian, that's fine. If you want to use Debian with EAP (typically used in Wireless deployments) you will have to create your own package. (License restrictions prevent the redistribution of OpenSSL) This is easy enough http://wiki.freeradius.org/Build#Building_Debian_packages As for a basic install. What do you want to do? What is your username/password database? What is your userbase? There is some good documentation appearing, but we'd need to know what you want to do to direct you to it. For example, If your userstore was ActiveDirectory, and you wanted WindowsXP machines to authenticated using PEAP to a wireless AP, this would be a good reference: http://deployingradius.com/documents/configuration/active_directory.html If you wanted to do something else, like SQLaccounting, there are guides for that.