ssh iot -https://remoteiot.com/blog/how-to-remotely-ssh-iot-device

The Secure Shell (SSH) protocol is often used for remote management because it provides an encrypted connection between the client and these remote Raspberry Pi and IoT devices. But when these Raspberry Pis and IoT devices are behind a firewall or router, direct connections are not allowed. The RemoteIoT platform enables easy and secure remote access to Raspberry Pi or IoT devices from anywhere.