RasPi Dropbox Setup

evil-dropbox

On server-side
--------------
sTunnel configured like so:

cert = /etc/stunnel/stunnel.pem
[ssh]
accept = 443
connect = 127.0.0.1:22


On client side
---------------
sTunnel configured like so (cert needs to be copied from server):

cert = /etc/stunnel/stunnel.pem
[ssh]
accept = 127.0.0.1:22
connect = [your.server.ip]:443

Autossh setup for creating an SSH tunnel to server:

sudo autossh -nNT -f -R 2201:localhost:22 parsec@localhost -p 2200 

To have sTunnel and autoSSH start on network connection:

Copy following script into /etc/network/if-up.d/:

  #!/bin/sh
    #reverse-connect script using sTunnel and autoSSH
    #created by p4rsec
  sleep 10      #to make sure network has had a chance to get DHCP IP      
  sudo stunnel                                                                  
  sleep 10      #to make sure the stunnel connection gets created before autossh tries to connect                                                                
  sudo autossh -nNT -f -R 2201:localhost:22 parsec@localhost -p 2200    #autossh command that connect to SSH through sTunnel
  
Add the following line to /etc/network/interfaces

  post-up /etc/network/if-up.d/reverse-connect #or whatever you named the script
  
NOTE: Public keys MUST be copied into root for autoSSH to connect during boot! Easiest way is this (you can even create a seperate root keypair)

  root@raspberrypi ~: ssh-keygen
  root@raspberrypi ~: ssh-copy-id user@server 
  
  user@server ~: ssh-copy-id root@raspberrypi #use the IP of said raspberry pi, or whatever other device you might be using.