Embedded Programming with Modern C++ Cookbook

How it works...

In this recipe, we set up a data exchange between two virtual environments—Docker and QEMU—using SSH. To do this, we need an SSH server to be running and accepting connections on the target system (QEMU), and an SSH client initiating connections on the build system.

In step 2, we set up the SSH client on our build system. Our target system, running in QEMU, already had an SSH server up and running. During the Working with emulators recipe, we configured QEMU to forward connections from our host port, 22023, to our virtual machine port, 22, which is SSH.

Now, we can use scp to copy a file from the build system to the target system using a secure network connection. We can specify our system IP address (discovered in step 1) ...