Book Image

Python Network Programming

By : Abhishek Ratan, Eric Chou, Pradeeban Kathiravelu, Dr. M. O. Faruque Sarker
Book Image

Python Network Programming

By: Abhishek Ratan, Eric Chou, Pradeeban Kathiravelu, Dr. M. O. Faruque Sarker

Overview of this book

This Learning Path highlights major aspects of Python network programming such as writing simple networking clients, creating and deploying SDN and NFV systems, and extending your network with Mininet. You’ll also learn how to automate legacy and the latest network devices. As you progress through the chapters, you’ll use Python for DevOps and open source tools to test, secure, and analyze your network. Toward the end, you'll develop client-side applications, such as web API clients, email clients, SSH, and FTP, using socket programming. By the end of this Learning Path, you will have learned how to analyze a network's security vulnerabilities using advanced network packet capture and analysis techniques. This Learning Path includes content from the following Packt products: • Practical Network Automation by Abhishek Ratan • Mastering Python Networking by Eric Chou • Python Network Programming Cookbook, Second Edition by Pradeeban Kathiravelu, Dr. M. O. Faruque Sarker
Table of Contents (30 chapters)
Title Page
Copyright
About Packt
Contributors
Preface
Index

Example and use case


Here, we will see a detailed example that is common to most network engineers, and how to automate it using Python. Also, we will create it as a web based tool, enabling it to run from any environment or machine, using only a browser.

Create a web-based pre and post check tool for validations

In the following example, we will see how we can perform a pre and post check on any network maintenance that we do. This is generally required by every network engineer while performing activities on production devices to ensure that once the maintenance activity is complete, an engineer has not missed out anything that could cause an issue later on. It is also required to validate if our changes and maintenance have been completed successfully, or if we need to perform additional fixes and rollbacks in case of validations that have failed.

The following are the steps to create and execute the tool:

Step 1 – Create the main HTML file

We will design a web-based form to select certain...