Getting Started with Penetration Testing using Python and Linux: A Beginner's Guide

2 min read · July 25, 2026

📑 Table of Contents

Introduction to Penetration Testing
Why Use Python and Linux for Penetration Testing?
Building a Vulnerability Scanner using Python and Linux
Key Takeaways
Comparison of Vulnerability Scanners
Practical Examples
Conclusion
Frequently Asked Questions

Getting Started with Penetration Testing using Python and Linux: A Beginner's Guide

Introduction to Penetration Testing

Penetration testing, also known as pen testing or ethical hacking, is the process of testing a computer system, network, or web application to find vulnerabilities that an attacker could exploit. In this guide, we will focus on getting started with penetration testing using Python and Linux to build a vulnerability scanner from scratch.

Why Use Python and Linux for Penetration Testing?

Python and Linux are popular choices for penetration testing due to their flexibility, customizability, and extensive libraries. Python's simplicity and ease of use make it an ideal language for beginners, while Linux provides a stable and secure platform for testing.

Building a Vulnerability Scanner using Python and Linux

To build a vulnerability scanner, we will use Python's scapy library to perform network scans and identify potential vulnerabilities. We will also use Linux's nmap tool to perform port scans and identify open ports.


         import scapy.all as scapy
         import nmap
         # Perform a network scan using scapy
         packet = scapy.IP(dst='192.168.1.1')/scapy.TCP(dport=80, flags='S')
         response = scapy.sr1(packet, timeout=1, verbose=0)
         if response:
            print('Port 80 is open')

Key Takeaways

Use Python's scapy library to perform network scans
Use Linux's nmap tool to perform port scans
Identify potential vulnerabilities using vulnerability scanners

Comparison of Vulnerability Scanners

Scanner	Features	Pricing
Nessus	Comprehensive vulnerability scanning, configuration auditing	Free trial, $2,000/year
OpenVAS	Open-source vulnerability scanning, vulnerability management	Free

For more information on vulnerability scanners, visit Nessus or OpenVAS.

Practical Examples


         import nmap
         nm = nmap.PortScanner()
         nm.scan('192.168.1.1', '1-1024')
         for host in nm.all_hosts():
            print('Host: %s' % host)
            for proto in nm[host].all_protocols():
               print('Protocol: %s' % proto)
               lport = nm[host][proto].keys()
               sorted(lport)
               for port in lport:
                  print('Port: %s State: %s' % (port, nm[host][proto][port]['state']))

Visit Python Nmap for more examples on using nmap with Python.

Conclusion

In this guide, we have covered the basics of penetration testing using Python and Linux and built a vulnerability scanner from scratch. We have also explored key takeaways, compared vulnerability scanners, and provided practical examples.

Frequently Asked Questions

Q: What is penetration testing? A: Penetration testing is the process of testing a computer system, network, or web application to find vulnerabilities that an attacker could exploit.
Q: Why use Python and Linux for penetration testing? A: Python and Linux are popular choices for penetration testing due to their flexibility, customizability, and extensive libraries.
Q: What is a vulnerability scanner? A: A vulnerability scanner is a tool used to identify potential vulnerabilities in a computer system, network, or web application.

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Published: 2026-07-25

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