Book Image

Python Network Programming Cookbook - Second Edition

By : Pradeeban Kathiravelu, Gary Berger, Dr. M. O. Faruque Sarker
Book Image

Python Network Programming Cookbook - Second Edition

By: Pradeeban Kathiravelu, Gary Berger, Dr. M. O. Faruque Sarker

Overview of this book

Python Network Programming Cookbook - Second Edition highlights the major aspects of network programming in Python, starting from writing simple networking clients to developing and deploying complex Software-Defined Networking (SDN) and Network Functions Virtualization (NFV) systems. It creates the building blocks for many practical web and networking applications that rely on various networking protocols. It presents the power and beauty of Python to solve numerous real-world tasks in the area of network programming, network and system administration, network monitoring, and web-application development. In this edition, you will also be introduced to network modelling to build your own cloud network. You will learn about the concepts and fundamentals of SDN and then extend your network with Mininet. Next, you’ll find recipes on Authentication, Authorization, and Accounting (AAA) and open and proprietary SDN approaches and frameworks. You will also learn to configure the Linux Foundation networking ecosystem and deploy and automate your networks with Python in the cloud and the Internet scale. By the end of this book, you will be able to analyze your network security vulnerabilities using advanced network packet capture and analysis techniques.
Table of Contents (15 chapters)

Checking a website status

A website may be down as its connectivity to the rest of the internet is broken in some way. We start this chapter by checking the status of a website. Though this is a very simple exercise done with just Python, this can be extended as a health monitor application for more complex scenarios on the internet.

Getting ready

This function tests the connectivity of a website by a given address or a fully qualified domain name (FQDN) and port (default 80 assumed). When a domain name is passed as an address, the socket.connect() method resolves it.

How to do it...

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