These steps provides the minimum information that you need to use the DNS cache.

Perform the following steps to use the DNS cache:

1. Create the initialization module, which in turn defines and initializes the file and the EZACIC25 module. See Step 1: Create the initialization module.
2. Define the cache files to CICS®. See Step 2: Define the cache file to CICS.
3. Use EZACIC25 to replace GETHOSTBYNAME calls in CICS application modules. See Step 3: Issue EZACIC25.