How to Install Docker on Kali Linux WSL2?

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If you are a cybersecurity professional, you are probably using the Docker containers constantly. Docker is great for pulling image of a hacking tool, running the container, and after you don’t need the tool, simply destroying the container. In this way you will save time that is required for installing each of the tools separately. Another use case for the Docker containers on Kali Linux is when you need to spin an app to test your tools, methodologies, or just that one specific vulnerability. Today we are going to see how to install Docker on Kali Linux WSL2 and make your life easier.

Kali can be installed on anything, ex. Raspberry Pi. But using the Kali Linux WSL2 and Docker is a something you might find convenient if you are hardcore Windows user. Long gone are the days when you had to bother with virtual machines. Nowadays WSL2 provides performance, and provides a simple way to have Kali Linux running on your Windows desktop. You probably know that creating virtual machines in virtual machines is not possible. This is where the Docker is advantageous – you can have Docker on WSL2 Kali Linux machine.

Without further ado, let’s see how to install it.

How to Install Kali Linux WSL2?

For those of you that do not have the Kali Linux on your machine, we will briefly cover the installation instructions.

This can literally be done in five minutes.

First of all, you need to make sure your Windows is up-to-date. Check the Windows updates (type Windows Updates in the search bar, open the Windows Update settings, check for the updates, and update if necessary).

After that, open the Powershell in the administrator mode. Then execute the following command:

Enable-WindowsOptionalFeature -Online -FeatureName Microsoft-Windows-Subsystem-Linux

This might take a while.

Windows subsystem for Linux can be enabled with simple Powershell command

And after this you might need a restart. Now after this you will need to enable the virtual machine feature. Once again, open the Powershell as administrator, and execute the following:

dism.exe /online /enable-feature /featurename:VirtualMachinePlatform /all /norestart

Then enable the WSL Linux feature:

dism.exe /online /enable-feature /featurename:Microsoft-Windows-Subsystem-Linux /all /norestart

What you should also do, download and install the Linux kernel WSL update. You can download it from there –—download-the-linux-kernel-update-package.

Lastly, you have to set the default WSL version to the WSL 2:

wsl –set-default-version 2
Setting the default WSL version

Restart your machine and you are good to go.

Now open the Microsoft Store, find the Kali Linux app, and install it:

Installing the Kali Linux from Microsoft Store

After the installation you will have the Kali Linux WSL on your system. Congratulations! Find the app that was installed in your system, and run it. Update and upgrade the system and you are ready to use it:

sudo apt update && sudo apt upgrade -y
Kali Linux is installed successfully

Installing Docker on Kali Linux

If you do have the Kali, let’s continue with the Docker installation.

If you want to have the Docker on Kali Linux WSL2, you must have the Docker installed on your Windows host machine. Download and install the Docker Desktop on Windows.

After this, you have to enable the WSL integration in the Docker settings. Open the Docker desktop application and go to settings.

Enable Docker for all WSL systems from Docker desktop settings

Click on Resources tab and go to WSL Integration.

Enable integration with my default WSL distro for kali-linux

Under the “Enable integration with additional distros:” select the kali-linux, then apply the changes by clicking Apply & Restart.

At this point everything is ready, so we can proceed in the Kali Linux CLI. Execute the following commands:

curl -fsSL | sudo apt-key add –

echo 'deb [arch=amd64] buster stable' | sudo tee /etc/apt/sources.list.d/docker.list

After this, update the OS:

sudo apt-get update

And install the Docker:

sudo apt-get install docker-ce

What should you keep in mind that the command for starting the Docker differs on the WSL. You must use this command:

sudo /etc/init.d/docker start 

As a result, you should be able to use the Docker. The following containers were started from the host machine. Now I can see them from Kali Linux:

Now the Docker works on Kali Linux

Not only that, now it is possible to create new containers from the Kali. This will make your work much easier.

That’s it. Congrats, you just installed Docker on Kali Linux WSL2!

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