Book Image

AWS Certified SysOps Administrator ??? Associate Guide

By : Marko Sluga
Book Image

AWS Certified SysOps Administrator ??? Associate Guide

By: Marko Sluga

Overview of this book

AWS certifications are becoming one of the must have certifications for any IT professional working on an AWS Cloud platform. This book will act as your one stop preparation guide to validate your technical expertise in deployment, management, and operations on the AWS platform. Along with exam specific content this book will also deep dive into real world scenarios and hands-on instructions. This book will revolve around concepts like teaching you to deploy, manage, and operate scalable, highly available, and fault tolerant systems on AWS. You will also learn to migrate an existing on-premises application to AWS. You get hands-on experience in selecting the appropriate AWS service based on compute, data, or security requirements. This book will also get you well versed with estimating AWS usage costs and identifying operational cost control mechanisms. By the end of this book, you will be all prepared to implement and manage resources efficiently on the AWS cloud along with confidently passing the AWS Certified SysOps Administrator – Associate exam.
Table of Contents (26 chapters)

Route 53 supported DNS resource record types

Amazon Route 53 is designed to support the most common DNS record types. While a huge subset of record types exists, the AWS team has designed the service to be as inclusive as possible and to provide the record types that are most commonly used with internet-based applications and websites. The following resource types are supported on Route 53 at the time of writing:

  • A and AAAA records are designed to resolve IPv4 (A) and IPv6 (AAAA) server names to IP addresses and allow browsers and applications to access our content via FQDN names
  • CAA records are designed to allow us to specify which Certificate Authority (CA) servers are allowed to issue certificates for our domain and thus increase the security of our websites
  • CNAME or Common Name records allow us to resolve complex DNS names to simpler or more general DNS names; for instance...