On: Disposable Root Servers

[gz5]

> Reverse Port Forwards (forget ngrok. This is free & better).

i assume this means the 'disposable root server' can send [whatever] encrypted data over the ssh tunnel to my machine (and my network if the machine is not properly segmented)?

if so, what should i do to protect it?

[Tepix → gz5]

You can configure it (or not) the way you want it. It is not a security issue by itself.