

Online Repsonder is Online Certificate Status Protocol (OCSP).For more info about CRLs please see here. Web Services provides a way for users to request CA to issue a certificate for users, computers, and services. Certificate Web Enrollment/Services Role establishes a web interface in order for users to request and retrieve certificates revocation lists (CRLs).A Certificate Authority role is to issues certificates to computers, users, and services in your environment.

Certificate Authority Role installs either root or subordinate Certificate Authorities in your environment which institutes certificates. We will be selecting this role in order to establish our Certificate Authority.Before we begin, I will go over which role services we will be selecting for our Active Directory Certificate Services implementation.
