If you have a problem with the current certificate, or if your corporate security policy requires doing so, you can replace default vCenter ServerHeartbeat certificates.
- Install OpenSSL on the system where you intend to replace the certificate.
- Obtain the certificate files rui.crt, rui.key, and rui.pfx.
- Download the SSLImport.jar utility from the VMware Knowledge Base article Replacing SSL Certificates for vCenter Server Heartbeat 6.x (KB 2013041).
- Follow the steps in the knowledge base article to replace the certificate.