You can manually create the AT-TLS policy configuration files by coding all the required statements in a z/OS® UNIX file or MVS™ data set. There are a large number of configuration options provided by AT-TLS policy statements that permit advanced users to carefully fine-tune AT-TLS policy on a per-stack basis. This information describes the procedure for creating an AT-TLS policy by manually creating and editing the configuration files. For details about the AT-TLS policy statements, see z/OS Communications Server: IP Configuration Reference.