cloudflared-ssh-docker

Setup:

Prequisites

• Create a Cloudflare account
• Add a domain to Cloudflare

Create a Cloudflared tunnel online

• Create a Cloudflared tunnel by going to:
  • Cloudflare -> Access -> Zero Trust -> Networks -> Tunnels -> Create Tunnel -> Select Cloudflared
  • Name your tunnel
  • Copy either of the installation instructions. Save the long token at the end to use in the later steps.
  • Configure:

    subdomain: anything you want
    domain: one of your domains
    Type: SSH
    URL: localhost:<your port for ssh (default is 22) OR for Mac: host.docker.internal:22
    

  • Save the tunnel

Set Up the Cloudflared tunnel locally

• On the machine you want to access, ensure that docker is install (see docker installation instructions
• Pull down this github repo: git@github.com:JohnYangSam/cloudflared-ssh-docker.git
• Create a .env file with: CLOUDFLARED_TUNNEL_TOKEN=<tunnel token from your cloudlfared dashboard>
• docker compose up -d to run the tunnel in detached mode

To SSH into the tunnel

• On your local machine, install cloudlfared (see Cloudflare instructions)

• On your local machine, set up ~/.ssh/config:

  # examplehostname
  Host examplehostname
  Hostname <subdomain.maindomain.tld from your cloudflared setup>
  IdentityFile <your identity file if you are using one>
  ProxyCommand cloudflared access ssh --hostname %h
  User <your user>
  Port <your port>
  

• SSH with: ssh examplehostname