You need to perform this task only if you are setting up prerequisite products for PKI Services for the first time.

PKI Services requires that you have the IBM HTTP Server installed and configured for at least non-SSL page retrieval. Tasks of other team members, such as the RACF® administrator and Web server programmer (see Running IKYSETUP to perform RACF administration and Updating IBM HTTP Server configuration and starting the server) assume that this is already done.