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After DSM 7.2 update, Synology renamed their "Docker" package to "Container Manager". It brings a new GUI, and comes with "docker-compose" within its GUI, which make you create Docker more easily.
Container Manager brings ARM64 support for some low-end models, such as J series, for detail list of supported model, please check [Synology website](https://www.synology.com/en-us/dsm/packages/ContainerManager).
Enter the project name `rustdesk-server` and change Source from "Upload compose.yml" to "Create compose.yml", and copy following contents to the box. After you copied, you should replace `rustdesk.example.com` (Which point to your `hbbr`) to the domain that will point to your NAS.
You could modify the line with `hbbs` to your NAS's LAN IP temporarily just like the picture. After you verify your server is working, you **should** change back.
Open your File Station, you should see `id_ed25519`, `id_ed25519.pub` on your `docker/rustdesk-server/data` folder. You could download it and open it though any text editor or use [Synology Text Editor](https://www.synology.com/en-us/dsm/packages/TextEditor). This is the public key that you need for your RustDesk client.
Check [here](/docs/en/client) to set up your client. Only `ID server` and `Key` is needed. `Relay server` isn't needed because we've set it in `hbbs`, hbbs will provide this information automatically.
If you have set your `hbbs` command to point to your LAN IP, and verified it is working, it is time to change to the domain, as it will not work when attempting to use it outside of your LAN.
5.2. After stopped, click "YAML Configurations", modify the line start with `command: hbbs` to your domain, then click "Save". Make sure you choose "Build and start the project (rebuild the image)".
If you still can't find the setting, Google search `{Router brand} + port forwarding` or `{Router model} + port forwarding`. If this device is from your ISP, ask them.