Book Image

AWS Administration - The Definitive Guide

By : Yohan Wadia, Naveen Kumar Vijayakumar
Book Image

AWS Administration - The Definitive Guide

By: Yohan Wadia, Naveen Kumar Vijayakumar

Overview of this book

AWS is at the forefront of Cloud Computing today. Many businesses are moving away from traditional datacenters and toward AWS because of its reliability, vast service offerings, lower costs, and high rate of innovation. Because of its versatility and flexible design, AWS can be used to accomplish a variety of simple and complicated tasks such as hosting multitier websites, running large scale parallel processing, content delivery, petabyte storage and archival, and lots more. Whether you are a seasoned sysadmin or a rookie, this book will provide you with all the necessary skills to design, deploy, and manage your applications on the AWS cloud platform. The book guides you through the core AWS services such as IAM, EC2, VPC, RDS, and S3 using a simple real world application hosting example that you can relate to. Each chapter is designed to provide you with the most information possible about a particular AWS service coupled with easy to follow hands-on steps, best practices, tips, and recommendations. By the end of the book, you will be able to create a highly secure, fault tolerant, and scalable environment for your applications to run on.
Table of Contents (17 chapters)
AWS Administration – The Definitive Guide
About the Author
About the Reviewer

Understanding EC2 networking

Before we understand how EC2 networking actually works, it is essential to understand the difference between networks provided by your traditional data centres and public clouds such as AWS. A traditional data centre network generally comprises a number of physical switches and routers that are connected to physical hardware and are responsible for transmitting and forwarding data or packets from one place to another.

The same also applies in the case of cloud computing; however, in place of the hardware, you now have virtual devices such as virtual servers, virtual network cards, virtual switches, and routers. However, the main differentiator between traditional and cloud based networks is that a cloud-based network is heavily filtered. Most public cloud providers, including AWS itself, allow only unicast datagrams over their networks, restricting all broadcast datagrams. Why, you ask? Well, mostly for security purposes and to avoid DDoS attacks, besides other...