Verify Kali Linux Version

Introduction

In this challenge, you will verify the Kali Linux version running within a Docker container. This involves accessing the container's terminal, extracting the VERSION_ID from the /etc/os-release file, and saving it to a file named version.txt in the ~/project directory on the host machine.

The setup script pulls the kalilinux/kali-rolling image if it's not present and starts a container named kali-container. You'll need to use docker exec to access the container, cat /etc/os-release to find the version, and then create the version.txt file with the extracted VERSION_ID. The verification script checks if the container is running and if the version.txt file contains the correct version.

This is a Challenge, which differs from a Guided Lab in that you need to try to complete the challenge task independently, rather than following the steps of a lab to learn. Challenges are usually a bit difficult. If you find it difficult, you can discuss with Labby or check the solution. Historical data shows that this is a beginner level challenge with a 84% pass rate. It has received a 97% positive review rate from learners.

Verify Kali Linux Version

A critical security audit requires you to quickly identify the Kali Linux version running in a Docker container. Your team needs this information to ensure compatibility with the latest security tools and maintain system integrity.

Tasks

Access the Kali Linux container's terminal.
Use the cat /etc/os-release command to find the VERSION_ID.
Create a file named version.txt in the ~/project directory and write the VERSION_ID into it.

Requirements

You must access the Kali Linux container using the command docker exec -it kali-container /bin/bash.
You must use the command cat /etc/os-release inside the container to find the VERSION_ID.
You must create a file named version.txt in the ~/project directory.
The version.txt file must contain only the VERSION_ID value.

Examples

If the VERSION_ID in /etc/os-release is 2023.3, then the version.txt file should contain:

2023.3

Hints

First, use docker exec -it kali-container /bin/bash to enter the container.
Then, use cat /etc/os-release to find the VERSION_ID.
Finally, use echo and redirection > to create the version.txt file in the ~/project directory on the host machine. You may need to use docker cp to copy the file from the container to the host. Alternatively, you can write the version to a file inside the container, then use docker cp to copy it to the host.

✨ Check Solution and Practice

Summary

In this challenge, the task involves verifying the Kali Linux version running within a Docker container. This requires first ensuring the Kali Linux image is pulled and the container is running. Then, accessing the container's terminal using docker exec -it kali-container /bin/bash and extracting the VERSION_ID from the /etc/os-release file using cat /etc/os-release.

Finally, the extracted VERSION_ID is written to a file named version.txt located in the ~/project directory on the host machine. This can be achieved by echoing the version and redirecting the output to the file, potentially using docker cp to transfer the file from the container to the host if necessary.