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  • A Cloud Guru
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Labs

Examine Log Files and Remove Traces of Your Presence

The goal of this lab is to find traces of your presence in the system logs and remove them.

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Labs

Path Info

Level
Clock icon Intermediate
Duration
Clock icon 30m
Published
Clock icon Sep 25, 2018

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By filling out this form and clicking submit, you acknowledge our privacy policy.

Table of Contents

  1. Challenge

    Find your public IP address.

  2. Challenge

    Become `root`.

    Run the following command: sudo -i

  3. Challenge

    Open the `/var/log/secure` log file.

    Run the following command: vim /var/log/secure

  4. Challenge

    Find all entries containing your IP address.

    Run the following command: /<IP ADDRESS>

  5. Challenge

    Remove all traces of your presence.

    1. Press i to edit the log file.
    2. Delete all entries containing your IP address.

  6. Challenge

    Save the changes and close the log file.

    Run :wq in vim.

  7. Challenge

    Log out.

    Run the following command: exit

A Cloud Guru - Labs - Examine Log Files and Remove Traces of Your Presence
Author
A Cloud Guru

The Cloud Content team comprises subject matter experts hyper focused on services offered by the leading cloud vendors (AWS, GCP, and Azure), as well as cloud-related technologies such as Linux and DevOps. The team is thrilled to share their knowledge to help you build modern tech solutions from the ground up, secure and optimize your environments, and so much more!

What's a lab?

Hands-on Labs are real environments created by industry experts to help you learn. These environments help you gain knowledge and experience, practice without compromising your system, test without risk, destroy without fear, and let you learn from your mistakes. Hands-on Labs: practice your skills before delivering in the real world.

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