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MD.AL-AMIN
MD.AL-AMIN

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Local machine as a web server without public IP using Cloudflare tunnel(part-1)

we can use our local machine as a public webserver using Cloudflare tunnel. you do not need any public IP.

Prerequisites

  1. PC or laptop
  2. you need a public domain(possible without a domain)
  3. Cloudflare account

Cloudflare Tunnel
Cloudflare Tunnel provides you with a secure way to connect your resources to Cloudflare without a publicly routable IP address. With Tunnel, you do not send traffic to an external IP — instead, a lightweight daemon in your infrastructure (‘cloudflared’) creates outbound-only connections to Cloudflare’s global network. Cloudflare Tunnel can connect HTTP web servers, SSH servers, remote desktops, and other protocols safely to Cloudflare

Step-1(Install OS)

I use Ubuntu OS in my daily work. So I installed an Ubuntu server on my laptop which I will use as a server machine. You can also use another OS (ubuntu-desktop, Mac OS, windows). after installation, you have to ensure that you connect to the internet, after setup internet your machine is ready to serve as web-server.

Step-2(Connect your domain with cloudflare)

Create a Cloudflare account. after sign up then login in Cloudflare account. After login, you will redirect to the dashboard .From dashboard click add a site button. then enter your domain and submit then you will see name-server ,this name-serve add to your domain registered dashboard.

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Congratulations your domain and cloudflare are connected now.

Step-3(Install cloudflare in your linux machine)

  • Add Cloudflare’s package signing key:


sudo mkdir -p --mode=0755 /usr/share/keyrings
curl -fsSL https://pkg.cloudflare.com/cloudflare-main.gpg | sudo tee /usr/share/keyrings/cloudflare-main.gpg >/dev/null


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  • Add Cloudflare’s apt repo to your apt repositories:


echo "deb [signed-by=/usr/share/keyrings/cloudflare-main.gpg] https://pkg.cloudflare.com/cloudflared $(lsb_release -cs) main" | sudo tee /etc/apt/sources.list.d/cloudflared.list


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  • Update repositories and install cloudflared:


sudo apt-get update && sudo apt-get install cloudflared


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After successfully install Cloudflare check



cloudflared -v


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Installing process for other OS - Download And Install

Step-4(Create Tunnel and use)

1. Authenticate cloudflared



sudo cloudflared tunnel login


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After this command you will be redirected to your Cloudflare account otherwise you will get a link, then you will use this link after you will see list of domain which you attach on your cloudflare account . i selected my domain iamalamin.com .
after selected youru domain it will create cert.pem file to your machine /root/.cloudflared/ directorey

2. Create cloudflare tunnel



sudo cloudflared tunnel create <NAME>


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after this command you will get a tunnel.this tunnel has <Tunnel-UUID> which is store in /root/.cloudflared/ directory with <Tunnel-UUID>.json



sudo cloudflared tunnel list


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show tunnel list in your machine

3. Create configure file for my tunnel

In your /root/.cloudflared directory, create a config.yml file using any text editor. This file will configure the tunnel to route traffic from a given origin to the hostname of your choice.



tunnel: <Tunnel-UUID>
credentials-file: /root/.cloudflared/<Tunnel-UUID>.json

ingress:
  - hostname: example-app.com
    service: http://localhost:3000
    originRequest:
      noTLSVerify: true

  - service: http_status:404


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Here service: http://localhost:3000 this is your local application running url.

4. Start routing traffic

Now assign a CNAME record that points traffic to your tunnel subdomain:



sudo cloudflared tunnel route dns <Tunnel-UUID> <your-domain-name>


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After this command a CNAME record will be created in your Cloudflare account domain dashboard.When I visited Cloudflare dashboard's Websites > your-domain.com > DNS > Records I saw that a new CNAME record is added in my domain's DNS record. This was added by the command I run.

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5. Run the tunnel



sudo cloudflared tunnel run <Tunnel-UUID or NAME>


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You need to always run this command to access your application using this tunnel.

6. Run Cloudflared as a service

To always run your Cloudflare you can use Cloudflare service on your machine.



sudo cloudflared service install
sudo systemctl start cloudflared
sudo systemctl status cloudflared


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Now your application will run from your local machine publicly using cloudflare tunnel

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