How to regenerate CA XCOM SSL Sample Certificates on a Machine that already has SSL Certificates.
CA XCOM Data Transport
If you need to run the makeca, makeclient and makeserver scripts again, you must delete the existing certificates
** Be very careful with this **
For CA XCOM Data Transport for z/OS users:
Please make sure to review the XCOM manual, if you intend to convert and import the sample SSL certificates using the makesysssl script. The makesysssl script allows you to change options that may be required to regenerate the certificates.