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SSH Anywhere

Automates the creation and tracking of SSH reverse tunnels so that I don't have to remember my desktop's IP when accessing it from somewhere else.

Usage

Let's say you have a computer with the hostname desktop. If it is connected to the internet, no matter where, you can:

ssha desktop

Requirements

On your remote server:

  • netcat
  • nodejs
  • npm or yarn

Installation

On your remote server

git clone https://github.com/CaioAlonso/ssh-anywhere
cd ssh-anywhere
yarn
yarn start

Edit src/config.js to fit your needs.

You'll have an HTTP server running on port 3000 by default. You might want to open that port on your firewall. Open the 10000-11000 range too, as that will be used by your machines.

Add this to the end of your /etc/ssh/sshd_config:

GatewayPorts yes

On each of your machines

wget https://raw.githubusercontent.com/CaioAlonso/ssh-anywhere/master/src/ssh-loop.sh
chmod +x ssh-loop.sh

Edit ssh-loop.sh with your server address and port and then run it.

Now you can do:

ssh `curl your.server/the-hostname-you-want`

Or if you're lazy, put this in your .bashrc:

ssha () {
  ssh -o UserKnownHostsFile=/dev/null -o StrictHostKeyChecking=no `curl --silent http://your.server:3000/$1`
}

Now you can:

ssha the-hostname-you-want

systemd service

Edit src/ssh-loop.service to fit your username and directory, then:

sudo cp src/ssh-loop.service /etc/systemd/system
sudo systemctl enable ssh-loop
sudo systemctl start ssh-loop