Book Image

AWS Certified DevOps Engineer - Professional Certification and Beyond

By : Adam Book
Book Image

AWS Certified DevOps Engineer - Professional Certification and Beyond

By: Adam Book

Overview of this book

The AWS Certified DevOps Engineer certification is one of the highest AWS credentials, vastly recognized in cloud computing or software development industries. This book is an extensive guide to helping you strengthen your DevOps skills as you work with your AWS workloads on a day-to-day basis. You'll begin by learning how to create and deploy a workload using the AWS code suite of tools, and then move on to adding monitoring and fault tolerance to your workload. You'll explore enterprise scenarios that'll help you to understand various AWS tools and services. This book is packed with detailed explanations of essential concepts to help you get to grips with the domains needed to pass the DevOps professional exam. As you advance, you'll delve into AWS with the help of hands-on examples and practice questions to gain a holistic understanding of the services covered in the AWS DevOps professional exam. Throughout the book, you'll find real-world scenarios that you can easily incorporate in your daily activities when working with AWS, making you a valuable asset for any organization. By the end of this AWS certification book, you'll have gained the knowledge needed to pass the AWS Certified DevOps Engineer exam, and be able to implement different techniques for delivering each service in real-world scenarios.
Table of Contents (31 chapters)
1
Section 1: Establishing the Fundamentals
7
Section 2: Developing, Deploying, and Using Infrastructure as Code
16
Section 3: Monitoring and Logging Your Environment and Workloads
21
Section 4: Enabling Highly Available Workloads, Fault Tolerance, and Implementing Standards and Policies
27
Section 5: Exam Tips and Tricks

Protecting data in transit with AWS Certificate Manager

When your external site presents a Transport Layer Security (TLS) certificate and uses the secure HTTP protocol (HTTPS/443), customers know that you are protecting data they are sending to and from your systems in an encrypted manner:

Figure 19.7 – How SSL/TLS works from browser to client

When you or your customers request a website that is presenting as HTTPS secured by an SSL/TLS certificate, the following steps take place:

  1. The server attempts to connect to the website over the secure 443 port. That web server then identifies itself.
  2. The server then sends a copy of its SSL certificate.
  3. The client will then check the certificate to see whether it's been issued from a trusted authority. If it trusts the certificate, it then sends a message of acknowledgment back to the server.
  4. The server then issues a digitally signed acknowledgment that will start the SSL session.
  5. ...