Book Image

Mastering Python for Networking and Security

By : José Ortega
Book Image

Mastering Python for Networking and Security

By: José Ortega

Overview of this book

It’s becoming more and more apparent that security is a critical aspect of IT infrastructure. A data breach is a major security incident, usually carried out by just hacking a simple network line. Increasing your network’s security helps step up your defenses against cyber attacks. Meanwhile, Python is being used for increasingly advanced tasks, with the latest update introducing many new packages. This book focuses on leveraging these updated packages to build a secure network with the help of Python scripting. This book covers topics from building a network to the different procedures you need to follow to secure it. You’ll first be introduced to different packages and libraries, before moving on to different ways to build a network with the help of Python scripting. Later, you will learn how to check a network’s vulnerability using Python security scripting, and understand how to check vulnerabilities in your network. As you progress through the chapters, you will also learn how to achieve endpoint protection by leveraging Python packages along with writing forensic scripts. By the end of this book, you will be able to get the most out of the Python language to build secure and robust networks that are resilient to attacks.
Table of Contents (16 chapters)

Connecting with FTP servers

In this section, we will review the ftplib module of the Python standard library, which provides us with the necessary methods to create FTP clients quickly and easily.

The File Transfer Protocol (FTP)

FTP is a protocol that’s used to transfer data from one system to another and uses Transmission Control Protocol (TCP) port 21, which allows clients and servers connected in the same network to exchange files. The protocol design is defined in such a way that it is not necessary for the client and server to run on the same platform; any client and any FTP server can use a different operating system and use the primitives and commands defined in the protocol to transfer files.

The protocol is...