SCP files to a server in LAN from WAN

Question

I need to SCP a bunch of files from my local machine to a machine in a LAN via a machine with a public ip.

Like this:

my machine -> machine with public IP (XXX.XXX.XXX.XXX) -> machine with private IP (YYY.YYY.YYY.YYY)

How can I do this as efficient as possible? I could of course SCP the files to the public machine and continue from there, but I'm pretty sure this is doable with tunnels or something?

Thank you!

Answer 1

The simplest way to go is port forwarding (because I assume your machine-with-public-IP share its internet connection).
Assuming your public IP maching runs on Windows, you can do that by going to the Properties of your shared connection, and in the Share tab, clik on Settings. Fill in the required values, and you should be good. Of course you have to have a scp server on your machine-with-a-private-IP