# Your app on a domain with HTTPS, without hand-editing nginx Give your app a free subdomain or your own domain, and the panel creates the nginx proxy to your app's port with a certificate included. If you edit the config and something breaks, it reverts to the previous one on its own. URL: https://ardumaker.com/en/servicios/dominios-ssl/ - Free subdomain - Automatic Let's Encrypt - nginx config with rollback ## Here's what it looks like in the panel Real screenshots of the ArduMaker panel, not mockups. ![Domains and SSL: VPS domains](https://ardumaker.com/screenshots/servicios/dominios-ssl-1.jpg) **VPS domains**. Each domain with its certificate and the app it serves. ## Publishing is no longer an afternoon of DNS and certificates From your app's port to a padlocked URL, in one step. - **Free subdomains**: Like your-app.arducloud.com, with the DNS record created for you and SSL handled by Cloudflare. - **Your own domain**: Let's Encrypt certificate issued automatically with certbot. - **Check before you configure**: A button confirms your domain already points to the VPS before you set it up. - **Reverse proxy in one step**: nginx routes your domain to your app's port, over HTTPS. - **Safe nginx editor**: You edit each domain's config; on save it is validated with nginx -t and, if that fails, the previous one is restored automatically. - **All in one list**: Your VPS domains with their port, certificate, logs and linked repo. - **Port forwarding**: Expose any internal VPS port (TCP or UDP) on a public port of the host. - **SSH that closes itself**: The port 22 forward can close on its own after however many hours you pick. - **No forgotten renewals**: The certificate renews itself. An SSL that expires on a Sunday night is a classic that doesn't happen here. - **Editable nginx**: The config that gets generated is plain nginx you can read and adjust, not a black box. ## From port to padlocked URL 1. **Pick the domain**: A free subdomain or your own, pointed at the VPS. 2. **Give it your app's port**: 3000 or 8080, for example. 3. **Done**: nginx and the certificate are configured; if you deployed from GitHub, it is linked to the repo. ## How it works under the hood, and what to watch for What you should know before you start, no fine print. - What gets generated is plain nginx acting as a reverse proxy to your app's port. You can read it and edit it: there is no proprietary layer in between. - When you save a config change it is validated with nginx -t before being applied. If the test or the reload fails, the previous one is restored on its own: the state of "I broke nginx and now the site is down" doesn't exist. - On arducloud.com subdomains the certificate comes from Cloudflare; on your own domain it is issued and renewed on its own with Let's Encrypt and certbot. - For your own domain, DNS has to point to the VPS before you create the forward. There is a button that checks it so you don't configure against DNS that hasn't propagated yet. - Free subdomains accept one or two segments of at least 3 alphanumeric characters. Deleting one also deletes its DNS record. - Port forwards expose any internal VPS port, TCP or UDP, on a public port of the host. That is what you use for something that isn't HTTP and can't sit behind nginx. - The port 22 forward accepts an automatic close in hours: you open SSH to do one specific thing and it closes when the time is up, even if you forget. Most ports left open are exactly that, something someone forgot. - Certificates for the platform domains are not included in the VPS backup; the ones for your own domains are. - The VPS nginx and its logs need systemd running. Verified in production on Ubuntu 22.04 and compatible with 18.04, 20.04, 24.04 and 26.04. - Real root over SSH: the panel is a shortcut, not a cage. Anything it does with a button, you can also do by hand. ## Or just ask Claude, ChatGPT or Cursor Everything you see in the panel, your AI agent can do through the ArduMaker MCP server: with your authorization, within the scope you grant, and with every action audited. [See what the MCP does](https://ardumaker.com/en/mcp/dominios/) ## Domains and SSL: frequently asked questions ### Do I have to pay for or configure the SSL? No. On arducloud.com subdomains Cloudflare provides it, and on your domain it is issued on its own with Let's Encrypt. ### What if I break the nginx config? It is validated before being applied; if the test or the reload fails, it goes back to the previous config on its own. ### Can I use my own domain? Yes: point it at the VPS, verify it from the panel and create the forward with a certificate. ### Can I open SSH for just a while? Yes, the port 22 forward accepts an automatic close in hours. ### Do I have to renew the certificate by hand? No, it renews itself. It is the most common reason a small site goes down: the certificate expired and nobody was watching. ### Why do I get a 502 after publishing a domain? Almost always because nginx is pointing at a port with nothing listening on it: the app didn't start, it crashed, or it ended up listening on another port. The service status and the VPS nginx logs show you that from the panel. ### Can I touch the nginx config? Yes. What gets generated is plain nginx and you can read and edit it from the panel or over SSH. ## Services that go well together Everything runs on the same VPS and is managed from the same panel. - [GitHub deploys](https://ardumaker.com/en/servicios/deploy-github/): Link a repo and every push to your chosen branch updates your app on the VPS, with build and restart scripts. - [Email on your own domain](https://ardumaker.com/en/email/): Mailboxes on your domain, aliases, bot accounts for integrations and DNS verified in real time. - [n8n](https://ardumaker.com/en/servicios/n8n/): Automations with queue-mode workers, Postgres and Redis included, a custom domain with HTTPS, and updates with rollback. **Your next app, padlocked from day one** Domains and SSL included in every VPS panel. Not a separate product: it's in the panel of every ArduMaker VPS, right next to real root over SSH. [See plans](https://ardumaker.com/en/precios/)