github.com/ossystems/ssh-tunnel-server

Installing

$ git clone https://github.com/OSSystems/ssh-tunnel-server.git
$ cd ssh-tunnel-server
$ docker-compose build

Setup

• Add the device public key to ./ssh-forward/ssh/authorized_keys
  • You will need to store the private key on your local machine -- the one that you will use to access the remove device
• Add the server private key to ./ssh-gateway/key.pem
• Open the following Ports for Inbound Traffic

Port	Type	Protocol Description
22	TCP	SSH for device connnection
32768 - 60999	TCP	Incoming Device Port
1883	TCP	MQTT
2221-2222	TCP	SSH for server-tunner-server manual connection

• NOTE: Change SSHD config from Port 22 to 2222

sudo vi /etc/ssh/sshd_config
# uncomment # Port 22 and then change 22 to 2222
# save and exit sshd_config file
# restart sshd service
sudo systemctl restart sshd

Running

To have the containers run in daemon mode (not print out the log outputs)

docker-compose start

This prints out the logs of each container and does not run in the background

docker-compose up

Example Connection

ssh gateway.kcam-service.com -l root@my-remote-device

Notes:

• hostname is case-sensitive (E.g. my-remote-device).
• As stated in the section Setup, you will need to store the private key on your local machine -- the one that you will use to access the remove device This key grants you access to the ssh-tunnel-server