You're reading from Python for Security and Networking Leverage Python modules and tools in securing your network and applications

Product type Paperback

Published in Jun 2023

Publisher Packt

ISBN-13 9781837637553

Length 586 pages

Edition 3rd Edition

Languages

Python

Concepts

Information Security

Author (1):

José Manuel Ortega

View More author details

Table of Contents (23) Chapters

Preface

1. Section 1: Python Environment and System Programming Tools

2. Working with Python Scripting FREE CHAPTER

3. System Programming Packages

4. Section 2: Network Scripting and Packet Sniffing with Python

5. Socket Programming

6. HTTP Programming and Web Authentication

7. Analyzing Network Traffic and Packet Sniffing

8. Section 3: Server Scripting and Port Scanning with Python

9. Gathering Information from Servers with OSINT Tools

10. Interacting with FTP, SFTP, and SSH Servers

11. Working with Nmap Scanner

12. Section 4: Server Vulnerabilities and Security in Web Applications

13. Interacting with Vulnerability Scanners

14. Interacting with Server Vulnerabilities in Web Applications

15. Obtain Information from Vulnerabilities Databases

16. Section 5: Python Forensics

17. Extracting Geolocation and Metadata from Documents, Images, and Browsers

18. Python Tools for Brute-Force Attacks

19. Cryptography and Code Obfuscation

20. Assessments – Answers to the End-of-Chapter Questions

21. Other Books You May Enjoy

22. Index

Building an HTTP client with urllib.request

The urllib.request package is the recommended Python standard library package for HTTP tasks. The urllib package has a simple interface and it has the capacity to manage all tasks related to HTTP requests.

Introducing the HTTP protocol

HTTP is an application layer protocol that defines the rules that clients, proxies, and servers need to follow for information exchange. It consists of two elements:

A request made by the client to a specific resource on a remote server, specified by a URL
A response sent by the server that supplies the resource the client requested

The HTTP protocol is a stateless protocol that does not store the exchanged information between client and server. Being a stateless protocol for storing information during an HTTP transaction, it is necessary to resort to other techniques for storing data. The most common approaches are cookies (values stored on the client side) or sessions (temporary...