Book Image

Mastering Python Networking - Third Edition

By : Eric Chou
Book Image

Mastering Python Networking - Third Edition

By: Eric Chou

Overview of this book

Networks in your infrastructure set the foundation for how your application can be deployed, maintained, and serviced. Python is the ideal language for network engineers to explore tools that were previously available to systems engineers and application developers. In Mastering Python Networking, Third edition, you’ll embark on a Python-based journey to transition from traditional network engineers to network developers ready for the next-generation of networks. This new edition is completely revised and updated to work with Python 3. In addition to new chapters on network data analysis with ELK stack (Elasticsearch, Logstash, Kibana, and Beats) and Azure Cloud Networking, it includes updates on using newer libraries such as pyATS and Nornir, as well as Ansible 2.8. Each chapter is updated with the latest libraries with working examples to ensure compatibility and understanding of the concepts. Starting with a basic overview of Python, the book teaches you how it can interact with both legacy and API-enabled network devices. You will learn to leverage high-level Python packages and frameworks to perform network automation tasks, monitoring, management, and enhanced network security followed by Azure and AWS Cloud networking. Finally, you will use Jenkins for continuous integration as well as testing tools to verify your network.
Table of Contents (18 chapters)
16
Other Books You May Enjoy
17
Index

Network scaling services

In this section, we will take a look at some of the network services AWS offers. Many of these services do not have direct network implications, such as DNS and content distribution networks. They are relevant in our discussion due to their close relationship with the network and application's performance.

Elastic Load Balancing

Elastic Load Balancing (ELB) allows incoming traffic from the internet to be automatically distributed across multiple EC2 instances. Just like load balancers in the physical world, this allows us to have better redundancy and fault tolerance while reducing the per-server load. ELB comes in two flavors: application and network Load Balancing.

The Application Load Balancer handles web traffic via HTTP and HTTPS; the Network Load Balancer operates on a TCP level. If your application runs on HTTP or HTTPS, it is generally a good idea to go with the application load balancer. Otherwise, using the network load balancer is a...