Your system includes a self-signed certificate when the system is first installed.
You cannot delete the currently installed certificate. However, you can replace the certificate by:
- Installing a new PKCS12 certificate
- Generating and installing a new self-signed certificate
- Generating a certificate signing request (CSR), sending it to a certificate authority (CA), and installing the certificate you receive in response
Tip: If you obtain a system certificate from a CA, it's best to keep a copy available for establishing mutual trust with an external system.