It has come to our attention that the official installation procedure of Docker for Linux machines, described in the latest lab guide in section 2.1 (step 1), does not work directly on the Kali image you have installed. For this reason, we revised the lab guide and published a new version with the correct installation steps for Docker and Docker Compose on the Kali image.

For it to work you must update the Virtual Machine. The instructions to do so are in the guide. It is recommended you do this before the class as it takes a while to finish.

Best,

--Tiago Brito