For ESXi 6.0 and later, hosts that are in VMCA mode or custom mode, you can view certificate details when you are logged in to the host with the VMware Host Client. The certificate information can be useful for debugging.
- Click Manage in the VMware Host Client inventory and click Security & Users.
- Click Certificates.
You can view the following certificate details.
The issuer of the certificate.
Not valid after
Date on which the certificate expires.
Not valid before
Date on which the certificate is generated.
The subject used during certificate generation.