How do I deploy public-tunnel on Railway?

You can deploy public-tunnel on Railway by clicking the "Deploy Now" button on this page. Railway will automatically set up all the necessary services and configurations for you.

What are the system requirements?

Railway handles all the infrastructure requirements. You only need a web browser to deploy and manage your application.

Is this template free to use?

Yes, this template is free to use within your existing Railway account.

Can I customize this template?

Yes, you can fully customize this template. After deployment, you will have full control of what you've deployed in your Railway project.

How do I get support for this template?

You can get support through our community forum: public-tunnel-12b85da3, or click "Get template help" for this template for more assistance.

Deploy and Host public-tunnel on Railway

public-tunnel is a simple TCP tunneling service that allows you to expose a private TCP service to the public internet without opening inbound ports on the source machine. It works by forwarding traffic through a cloud-hosted tunnel endpoint.

About Hosting public-tunnel

Hosting public-tunnel on Railway allows you to create a publicly accessible TCP endpoint that forwards traffic to a private target service. Railway provides the public TCP proxy, while public-tunnel handles the connection to the target. This setup is useful for accessing services behind NAT, firewalls, or CGNAT without modifying network infrastructure.

Common Use Cases

Exposing Windows RDP (TCP 3389) from a private network
Providing public access to SSH servers behind NAT
Forwarding traffic to internal development or testing services

Dependencies for public-tunnel Hosting

Docker-compatible runtime
Tailscale account and auth key

Deployment Dependencies

Railway TCP Proxy (free feature)
Tailscale Auth Keys
https://tailscale.com/kb/1085/auth-keys

Implementation Details

public-tunnel runs as a Docker container that listens on TCP port 2711 and forwards incoming connections to a target address specified by environment variables.

Required environment variables:

TOKEN=tskey-auth-xxxxxxxx TARGET=100.x.x.x:PORT

Why Deploy public-tunnel on Railway?

Railway is a singular platform to deploy your infrastructure stack. Railway will host your infrastructure so you don't have to deal with configuration, while allowing you to vertically and horizontally scale it.

By deploying public-tunnel on Railway, you are one step closer to supporting a complete full-stack application with minimal burden. Host your servers, databases, AI agents, and more on Railway.