Synology Nas Reverse Proxy

How to Install Plausible on Your Synology NAS and Synology: How to Add Wildcard Certificate are great guides to setting up a Plausible Docker image on your NAS and exposing it to the internet, but they are long. This blog post is a generic and condensed guide to follow in order to reverse proxy a Docker image running on your NAS and exposing it to the internet. To follow this guide, you will need to own a domain name.

Create a Dynamic DNS Entry

1. In your NAS “Control Panel”, click “External Access” from the sidebar
2. Click the “DDNS” tab
3. Click “Add” button
4. Add hostname
5. In the “External Address” dropdowns, click “Auto”

Expose Your NAS via Dynamic DNS

1. In your NAS “Control Panel”, click “Security” from the sidebar
2. Click the “Certificate” tab
3. Select the “Add a new certificate” radio selector
4. Select the “Get a certificate from Let’s Encrypt” radio selector
5. In the “Domain name” text field input: “<your-domain>.synology.me”
6. In the “Subject Alternative Name” text field input: “*.<your-domain>.synology.me”

• this last step is important in order to have wild card routes

Reverse Proxy a Docker Image

1. In your NAS “Control Panel”, click “Login Portal” from the sidebar
2. Click “Advanced” tab
3. Click “Reverse Proxy” button
4. Click “Create” button

• note, the Destination port needs to match the port defined in the Docker Compose yml

The best part of this is Synology will auto-renew your CA certifications via Let’s Encrypt.