How to create and manage an SSL certificate inside a kdb file from command line

Today I was working for one of my HCL DX customers and one of the tasks needed was change the SSL certificate used by the IBM HTTP Server. During past days I have generated and tested the certificate directly from Ikeman utility using an IHS 8.5.5.FP16 without issue but on a 8.5.5 OLD FixPack server starting the service I was getting Configuration Failed After checks on IBM docs I saw several upgrades related to KDB during the years and Fixpacks so I decided to try to create a new KDB directly from this 8.5.5 old FP server.
This is a companion discussion topic for the original entry at https://blog.msbiro.net/2020/10/how-to-create-and-manage-kdb-certificate-ssl-from-command-line.html