Editing Certificate Engine Properties (section)

=== Prerequisites ===
In order for the certificate engine to automatically create and renew certificates, please ensure the following:

* The Domain Name(s) to be secured must be owned by your organization and resolve to the external IP address of your router. 
* Port 80 must be open on your router and must be forwarded through to Port 80 on the internal IP address of the server.
* All clients (desktop, mobile and web) must be configured to connect using one of the Domain Name(s) specified in this engine.