Book Image

Python for Security and Networking - Third Edition

By : José Ortega
4 (3)
Book Image

Python for Security and Networking - Third Edition

4 (3)
By: José Ortega

Overview of this book

Python’s latest updates add numerous libraries that can be used to perform critical security-related missions, including detecting vulnerabilities in web applications, taking care of attacks, and helping to build secure and robust networks that are resilient to them. This fully updated third edition will show you how to make the most of them and improve your security posture. The first part of this book will walk you through Python scripts and libraries that you’ll use throughout the book. Next, you’ll dive deep into the core networking tasks where you will learn how to check a network’s vulnerability using Python security scripting and understand how to check for vulnerabilities in your network – including tasks related to packet sniffing. You’ll also learn how to achieve endpoint protection by leveraging Python packages along with writing forensics scripts. The next part of the book will show you a variety of modern techniques, libraries, and frameworks from the Python ecosystem that will help you extract data from servers and analyze the security in web applications. You’ll take your first steps in extracting data from a domain using OSINT tools and using Python tools to perform forensics tasks. By the end of this book, you will be able to make the most of Python to test the security of your network and applications.
Table of Contents (23 chapters)
Section 1: Python Environment and System Programming Tools
Section 2: Network Scripting and Packet Sniffing with Python
Section 3: Server Scripting and Port Scanning with Python
Section 4: Server Vulnerabilities and Security in Web Applications
Section 5: Python Forensics
Assessments – Answers to the End-of-Chapter Questions
Other Books You May Enjoy

Tools for brute-force attacks in Python

In this section, we will review the main tools we can find in the Python ecosystem to obtain information using brute-force attacks.

Obtaining subdomains by brute force

Aiodnsbrute ( is a Python 3.5+ tool that uses asyncio module to brute-force domain names asynchronously. asyncio ( is a library for writing concurrent code using the async/await syntax and is used to do asynchronous calls with Python.

There are two ways to install it; the first one consists of using a command that allows you to install it on the system:

$ pip install aiodnsbrute

The second one is downloading the source code from the GitHub repository and running the file:

$ git clone
$ cd aiodnsbrute
$ python install .

Once installed, we can see the various helper options with the following command: