# What?

This is a backdoor for servers in NAT networks.

One server on the public internet acts as a backdoor server, where other
computers connect, creating reverse tunnels to their ports 22.

The program manages random ports that are then available at the server localhost.

# install

configure  config.env  and run `make install`

- ssh-backdoor will go to ~/bin/ssh-backdoor
- Servers behind NAT should access the ssh-backdoor-open script over a http(s) server
- Clients that want to connect to the backdoored servers should be able to access
  ssh-backdoor-connect script
- use the 'ad-hoc-www-server' if no proper http server available

# running

- NATted servers must copy their `id_rsa.pub` to backdoor server's `authorized_keys`
- Clients should do the same, for ease of access
- Have NATted servers run  `ssh-backdoor-open` at boot (in cron or otherwise)
- Use the ssh-backdoor command directly, or ssh-backdoor-connect from client machines
  to connect


# utils

- `ssh-list` lists all processes with ssh and backdoor
- `ssh-kill-all` kills all ssh connections (except the current parent), and all python processes