The DualShield 6.x Platform includes a certificate service that supports Let's Encrypt.
If you are upgrading an old DualShield 5.x server to the latest DualShield 6.x server, then you must select the "Certificate Server" component in the upgrading process:
If are installing a new frontend DualShield server, then you must select the "Certificate Server" component in the installation process:
To check if the certificate server is in operation or not, navigate to "http://localhost/cert/hello"
Port 80
Let's Encrypt requires port 80 to be open when a new certificate is being installed and when an existing certificate is being renewed. A Let's Encrypt certificate is valid for 90 days, which will be automatically renewed on the day it expires.
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