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AWS for System Administrators

You're reading from   AWS for System Administrators Build, automate, and manage your infrastructure on the most popular cloud platform – AWS

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Product type Paperback
Published in Feb 2021
Publisher Packt
ISBN-13 9781800201538
Length 388 pages
Edition 1st Edition
Tools
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Author (1):
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Prashant Lakhera Prashant Lakhera
Author Profile Icon Prashant Lakhera
Prashant Lakhera
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Toc

Table of Contents (18) Chapters Close

Preface 1. Section 1: AWS Services and Tools
2. Chapter 1: Setting Up the AWS Environment FREE CHAPTER 3. Chapter 2: Protecting Your AWS Account Using IAM 4. Section 2: Building the Infrastructure
5. Chapter 3: Creating a Data Center in the Cloud Using VPC 6. Chapter 4: Scalable Compute Capacity in the Cloud via EC2 7. Section 3: Adding Scalability and Elasticity to the Infrastructure
8. Chapter 5: Increasing an Application's Fault Tolerance with Elastic Load Balancing 9. Chapter 6: Increasing Application Performance Using AWS Auto Scaling 10. Chapter 7: Creating a Relational Database in the Cloud using AWS Relational Database Service (RDS) 11. Section 4: The Monitoring, Metrics, and Backup Layers
12. Chapter 8: Monitoring AWS Services Using CloudWatch and SNS 13. Chapter 9: Centralizing Logs for Analysis 14. Chapter 10: Centralizing Cloud Backup Solution 15. Chapter 11: AWS Disaster Recovery Solutions 16. Chapter 12: AWS Tips and Tricks 17. Other Books You May Enjoy

Dedicated instance versus dedicated host – which should you choose?

This is always a confusing topic, but let's first learn about dedicated instances with reference to an on-demand context, which most of us know about. On-demand is the preferred choice for most of us as it's cost-effective. When you spin up your EC2 instance, if you don't choose any option, by default it picks on-demand, which means your instance can be launched in any hypervisor running in AWS.

This might be an issue for some customers who want a hypervisor (a hypervisor is a piece of software that creates and runs virtual machines (VMs)) dedicated to their AWS account. There can be many reasons for that, but one common concern is security. You want the hypervisor you are using to only run the AWS instances of your company. This is where a dedicated instance comes into the picture. When you pick the dedicated instance option, hardware will be dedicated to your account. AWS now provides you...

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