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)

Connecting instances to the network

Once we have decided on the compute capacities of the instance, we need to select the network to connect the instance to. Instances are connected to the network by selecting the VPC and an appropriate subnet. We have taken a look at how to create a VPC in Chapter 4, Networking with Virtual Private Cloud. The selection of the VPC and subnet will determine the following:

  • The private IP addressing of the instance
  • The internet availability and public IP address of the instance
  • The availability zone in which the instance will be started

An instance network connection details will be determined upon creation of the instance. A MAC address will be assigned to the primary network interface of the instance and the DHCP service within the VPC subnet will assign an IP address to the instance from its pool of IP addresses.

If we require more control...