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Labs

Create a Port Scanner using Bash

In this lab, you’ll practice building a port scanner using bash. When you’re finished, you’ll have the knowledge and skills necessary to build your own..

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Lab platform
Lab Info
Rating
(59)
Level
Beginner
Last updated
Jul 30, 2025
Duration
1h 5m

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Table of Contents
  1. Challenge

    Getting Started in the Lab Environment

    Here are the initial instructions and explanation of the lab environment. Read this while your environment is busy creating itself from nothing. Yes, this violates physics; we know. How fun!

  2. Challenge

    Build a Simple Port Scanner with Bash

    During this challenge, you will be instructed on how to build a basic port scanner using the bash shell scripting language. You’ll learn the basics of building the scanner and how to do so, then execute it and analyze the results.

  3. Challenge

    Build a Robust Port Scanner with Bash

    During this challenge, you will build on top of the previous challenge. You’ll learn how to add more variables and options for building a scanner using bash, including how to scan multiple IP addresses and multiple ports with a terminal output.

  4. Challenge

    The Last Challenge

    Welcome to the final challenge! This is your last chance to experiment in the environment. Clicking Finish Lab will end this little world that flittered into existence just for you.

About the author

Joe is a Network Consulting Engineer and has worked in the IT industry since 2010. He has experience in teaching and mentoring IT professionals in both DoD environments and in the civilian sector, in both the networking and IT security fields.

Real skill practice before real-world application

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.

Learn by doing

Engage hands-on with the tools and technologies you’re learning. You pick the skill, we provide the credentials and environment.

Follow your guide

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On average, you retain 75% more of your learning if you take time to practice. Hands-on labs set you up for success to make those skills stick.

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