Create a Port Scanner using Bash

Libraries: If you want this lab, consider one of these libraries.
Security

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..

Get started Contact sales

Lab Info

Rating

(59)

Level

Beginner

Last updated

Jul 30, 2025

Duration

1h 5m

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!
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.
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.
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 Abraham

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

All labs have detailed instructions and objectives, guiding you through the learning process and ensuring you understand every step.

Turn time into mastery

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.