VMware vSphere 6.x Certificate Manager

https://kb.vmware.com/selfservice/search.do?cmd=displayKC&docType=kc&docTypeID=DT_KB_1_1&externalId=2097936

Replacing default certificates with CA signed SSL certificates in vSphere 6.x

https://kb.vmware.com/selfservice/microsites/search.do?language=en_US&cmd=displayKC&externalId=2111219