How to secure your application with Cloudflare Tunnel

What is Cloudflare Tunnel? 
 Cloudflare Tunnel is a secure solution that connects your web applications to Cloudflare's global network without exposing your server's IP address or opening inbound ports. It creates an encrypted tunnel between your origin server and Cloudflare's edge, providing enhanced security and performance for your applications. 
 Why Use Cloudflare Tunnel? 
 Key Benefits: 
 
 
 
 
 
 
 
 No exposed IP addresses: Your server's IP remains completely hidden 
 No open inbound ports: Eliminates common attack vectors 
 Built-in DDoS protection: Leverages Cloudflare's network 
 End-to-end encryption: Secure communication throughout 
 Easy setup: No complex firewall configurations needed 
 Global performance: Benefits from Cloudflare's CDN 
 
 
 
 
 
 
 
 Getting Started with Cloudflare Tunnel 
 Prerequisites 
 
 
 
 
 
 
 
 A Cloudflare account (free tier is sufficient) 
 A domain configured in Cloudflare 
 Access to your server or application host 
 Basic command-line knowledge 
 
 
 
 
 
 
 
 Step-by-Step Installation Guide 
 Step 1: Access Zero Trust Dashboard 
   
 Navigate to your Cloudflare dashboard and click on  Zero Trust  in the sidebar. This is where all tunnel management happens. 
 When installing Cloudflare on your Elestio service, make sure to select  Debian  as the operating system. Next, open your  Elestio Terminal . Once inside, install Cloudflare and set up the service to run your tunnel by copying and pasting the commands provided by Cloudflare. 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 Step 2: Navigate to Tunnels 
 Under the  Networks  section, click on  Tunnels . This is your central hub for creating and managing all your tunnels. 
 Click  "Create a tunnel"  to begin the setup process. You'll be presented with two options: 
 
 
 
 
 
 
 
 Cloudflared (Recommended) : The standard option for most use cases 
 WARP Connector : For advanced networking scenarios 
 
 
 
 
 
 
 
 Select  Cloudflared  for this guide. 
 
 
 
 
 
 
 
 
 
 
 
 
 
 Choose a descriptive name for your tunnel. This helps you identify it later, especially if you manage multiple tunnels. 
 
 
 
 
 
 
 
 
 
 
 
 
 
 Click  "Save tunnel"  to proceed. 
 
 
 
 
 
 
 
 
 
 
 
 
 
   
 Step 3: Configure Your Application Route 
 
 
 
 
 
 
 
 
 
 
 
 
 
 Hostname Configuration: 
 
 
 
 
 
 
 
 Subdomain : Choose your desired subdomain (e.g., "app", "api", "blog") 
 Domain : Select from your Cloudflare-managed domains 
 Path : Optional path prefix for routing 
 
 
 
 
 
 
 
 Service Configuration: 
 You can easily find the correct port by clicking  Update Config  in the  Overview  tab of your service, then checking the  Ports  section to see which port your application is bound to. 
 Click  "Save"  to finalize your configuration. Your tunnel is now active and routing traffic! 
 Cloudflare Tunnel revolutionizes how we expose applications to the internet. By eliminating the need for public IP addresses and open ports, it significantly reduces attack surface while providing enterprise-grade performance and security. 
 Combining Elestio's managed infrastructure with Cloudflare Tunnel gives you professional-grade deployment with minimal complexity - perfect for securing your applications, APIs, and services behind Cloudflare's global network.