This post is part of the Test Your Skills series. You can find an introduction here. And an overview of all TYS’s currently available is over here.

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Challenge

The goal of this challenge is to find a way to send a specific input from your host to the “Hidden Service” inside the container (as illustrated by the red arrow) - without changing the docker run command (build and run it exactly the way as shown below) or any of the scripts/files provided.