Use a certificate authority
Use a trusted CA (certificate authority) to simplify certificate trust management; the CA issues certificates that you import. If the browser is configured to trust the CA, certificates signed by the CA are also trusted. A CA can be internal (operated and maintained by your organization) or external (operated and maintained by a third party).
You can import a certificate signed by a CA, and using it instead of the self-signed certificate. The overall steps are as follows:
Procedure
See Create an appliance certificate signing request and Import a certificate.