Re: Simple way to securely access remote machine that's behind a NAT?

[Don NetBSD <netbsd-embedded%gmx.com@localhost>]

On 9/24/2018 6:04 PM, Michael Cheponis wrote:
> I have a (linux raspberry pi) that's remotely located and NATted in such a
> way that I cannot control that part of the infrastructure, although  do
> have complete control of the machine otherwise (e.g. access to root).
>
> What I'd like to do is access it from my local NetBSD system (which does
> have a  'real' IPv4 address), something like this:
>
> 1) Start some 'daemon' on the remote linux box that attempts a connection
> to ...
> 2) .. my local NetBSD box.
>
> And
>
> 3) some local NetBSD program that allows me to get a shell prompt of the
> remote linux machine here on my NetBSD machine via the connection set up in
> (1) and (2).

I assume you can't be in two places at once -- i.e., you want to have the rPi
do <whatever> and SIT ("daemon"), possibly waiting *indefinitely*, for a
connection from the NetBSD box (which is "remote" to the rPi)?