Book Image

Mastering Python for Networking and Security - Second Edition

By : José Ortega
Book Image

Mastering Python for Networking and Security - Second Edition

By: José Ortega

Overview of this book

It’s now more apparent than ever that security is a critical aspect of IT infrastructure, and that devastating data breaches can occur from simple network line hacks. As shown in this book, combining the latest version of Python with an increased focus on network security can help you to level up your defenses against cyber attacks and cyber threats. Python is being used for increasingly advanced tasks, with the latest update introducing new libraries and packages featured in the Python 3.7.4 recommended version. Moreover, most scripts are compatible with the latest versions of Python and can also be executed in a virtual environment. This book will guide you through using these updated packages to build a secure network with the help of Python scripting. You’ll cover a range of topics, from building a network to the procedures you need to follow to secure it. Starting by exploring different packages and libraries, you’ll learn about various ways to build a network and connect with the Tor network through Python scripting. You will also learn how to assess a network's vulnerabilities using Python security scripting. Later, you’ll learn how to achieve endpoint protection by leveraging Python packages, along with writing forensic scripts. By the end of this Python book, you’ll be able to use Python to build secure apps using cryptography and steganography techniques.
Table of Contents (22 chapters)
1
Section 1: The Python Environment and System Programming Tools
4
Section 2: Network Scripting and Extracting Information from the Tor Network with Python
8
Section 3: Server Scripting and Port Scanning with Python
12
Section 4: Server Vulnerabilities and Security in Python Modules
16
Section 5: Python Forensics

Working with socket.io

WebSockets is a technology that provides real-time communication between a client and a server via a TCP connection, eliminating the need for customers to continuously check whether API endpoints have updates or new content. Clients create a single connection to a WebSocket server, and wait to listen to new server events or messages.

The main advantage of WebSockets is that they are more efficient because they reduce the network load and send information in the form of messages to a large number of clients.

Among the main features of WebSockets, we can highlight the following:

  • They provide bidirectional (full duplex) communication over a single TCP connection.
  • They provide real-time communication between a server and its connecting clients. This enables the emergence of new applications oriented toward managing events asynchronously.
  • They provide concurrency and improve performance, optimizing response times and resulting in more reliable...