How do I install a Let’s Encrypt SSL certificate for my custom DDNS domain in QTS?
Data ostatniej modyfikacji:
2025-08-01
Applicable Products
QTS 5.0 and later
Scenario
Users who register a custom domain (via DDNS or an external DNS provider) may want to enable HTTPS access to their QNAP NAS. QTS provides built-in support for obtaining SSL certificates from Let’s Encrypt, making this process straightforward.
Solution
Follow the steps below to install an SSL certificate from Let’s Encrypt for your custom domain:
- Ensure the following prerequisites are met:
- Your NAS must be accessible from the internet using the custom domain (e.g., yourname.ddns.net).
- Port 80 (HTTP) must be open and properly forwarded from your router to the NAS.
- The custom domain must resolve to the NAS’s public IP address.
- Install the certificate from Let’s Encrypt:
- Go to Control Panel > System > Security > SSL Certificate & Private Key.
- Click Replace Certificate.
- From the dropdown menu, select Get from Let’s Encrypt.
- Enter the following information:
- Domain Name: Your registered custom domain (e.g., yourname.ddns.net)
- Email Address: A valid email address to receive renewal notifications
- Click Apply.
- After installation:
- The system will attempt to validate the domain and automatically install the certificate.
- Once successful, your NAS will use the Let’s Encrypt certificate for HTTPS connections.
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