Open web administration portal and navigate to
Add or Edit Certificate
subdomain.yourdomain.com or wildcard
*.yourdomain.com certificate are all acceptable. A wildcard certificate is preferred.
For production environment, you should have a legal digital certificate issued by a trusted CA ( such as
Let's Encrypt ) .
For test purpose, when filled in the first field (
Common Name or Subject Alternative Name), click
Self-Sign Certificate button, it will produce a self-sign certificate for you, and you need export it with browser and add it to the trusted root CA.
Private key is encrypted and stored in the database.
Different encryption keys used for each instance.