# Customization

To ensure a secure system SSL environment, you have to check and if necessary configure IBM Integrated Cryptographic Support Facility (ICSF).

To check ICSF, note the following conditions:

- Ensure that the started task is running (CSFSTART or equivalent).
- Verify that any coprocessor hardware is configured and the keys are loaded.
- If FIPS mode is required, verify that parmlib options include `FIPSMODE(YES,FAIL(YES))`.

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