This chapter assumes that you are using Resource Access Control Facility (RACF®) as your installation's security product. You could use an equivalent security product instead of RACF. You must activate the security product when you IPL your system.

Most of the APPC/MVS security support is optional or automatic. The only security requirement that must be met before using APPC/MVS is ensuring that the APPC and ASCH started procedures can access the resources that they need.