I've recently started practicing on HackTheBox. Setting up a VM on my Macbook seemed like an overkill to me, so I decided to use Docker instead. However, I couldn't find any ready-to-use Dockerfiles, so I decided to compile my own, which I am excited to share with the community.

It uses a Kali Linux image and runs an OpenVPN inside the container. With this setup, you can conveniently access the lab server directly from within the container.

Follow these simple steps to get set up:

1. Place htb.dockerfile and {file_name}.ovpn in the same directory.
2. Execute the build command(takes around 8 min to complete):

   docker build -f htb.dockerfile -t htb:v0 .
   

3. Replace {file_name}.ovpn with your OpenVPN file name and start the container with the run command:

   docker run -d --cap-add SYS_ADMIN -d --privileged \
   --sysctl net.ipv6.conf.all.disable_ipv6=0 --rm -it htb:v0 /etc/openvpn/client/{file_name}.ovpn
   

At this point your container is already in internal Lab's VPN. Open new terminal tab and access container bash:

docker exec -it {container_name} bash

Let's go!

ping 10.129.19.37

• Don't forget to stop container after you're done.

• Some of the packages might be missing from my build. I'll keep adding them as I progress in learning about the platform. For details, check the Dockerfile.