Using Radius authentication with Apache web server
The following will install radius authentication on your RHEL/CentOS apache web server. You can use these instructions for different linux builds, you will just need to adjust by finding the correct folder locations and package names. Also this is a 64-bit system, so for 32-bit change the package names from x86_64 to i386 or whatever YUM tells you is available. This configuration assumes you already have a functioning web server. If you don't please find a separate tutorial on apache web server for your OS. You must have the radius server configured before attempting this configuration. You need to add each user to that linux box beforehand (useradd). This will replace htpasswd authentication, but will only work for users defined in the radius server and the local linux server. To my knowledge, you cannot have both radius and htpasswd authentication running at the same time. Also, applications that have their own authentication system out...