Options for configuring Health Registration Authority (HRA) include:
Configured by using the Add Roles Wizard during the installation of the HRA role service. For more information, see Understanding HRA Authentication Requirements.
Certification authorities (CAs)
Configured during installation of HRA, or later using either the HRA snap-in or netsh nap hra context commands. At least one CA must be configured in order for HRA to obtain health certificates on behalf of Network Access Protection (NAP) clients. For more information, see Configure NAP Certification Authority.
Configured after installation of HRA by using the HRA snap-in or the command line. You do not have to modify default HRA request policy settings. For more information, see Understanding HRA Request Policy.