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AWS Certified Cloud Practitioner Exam Guide

You're reading from   AWS Certified Cloud Practitioner Exam Guide Build your cloud computing knowledge and build your skills as an AWS Certified Cloud Practitioner (CLF-C01)

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Product type Paperback
Published in Jan 2022
Publisher Packt
ISBN-13 9781801075930
Length 630 pages
Edition 1st Edition
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Author (1):
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Rajesh Daswani Rajesh Daswani
Author Profile Icon Rajesh Daswani
Rajesh Daswani
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Table of Contents (23) Chapters Close

Preface 1. Section 1: Cloud Concepts
2. Chapter 1: What Is Cloud Computing? FREE CHAPTER 3. Chapter 2: Introduction to AWS and the Global Infrastructure 4. Chapter 3: Exploring AWS Accounts, Multi-Account Strategy, and AWS Organizations 5. Section 2: AWS Technologies
6. Chapter 4: Identity and Access Management 7. Chapter 5: Amazon Simple Storage Service (S3) 8. Chapter 6: AWS Networking Services – VPCs, Route53, and CloudFront 9. Chapter 7: AWS Compute Services 10. Chapter 8: AWS Database Services 11. Chapter 9: High Availability and Elasticity on AWS 12. Chapter 10: Application Integration Services 13. Chapter 11: Analytics on AWS 14. Chapter 12: Automation and Deployment on AWS 15. Chapter 13: Management and Governance on AWS 16. Section 3: AWS Security
17. Chapter 14: Implementing Security in AWS 18. Section 4: Billing and Pricing
19. Chapter 15: Billing and Pricing 20. Chapter 16: Mock Tests 21. Answers 22. Other Books You May Enjoy

Securing your VPC with bastion hosts

The use of bastion hosts (or jump boxes) is used to provide secure access to EC2 instances located in the private and public subnets of your virtual private cloud (VPC). These bastion hosts (you can have one or multiple hosts deployed for redundancy) can be used as management servers and are designed to allow you to remotely connect to them via SSH or RDP protocols. Once you have established connectivity to your bastion hosts, you can then log onto backend EC2 instances acting as web or application servers.

Bastion hosts are EC2 instances that do not host any unnecessary applications, other than those required to allow connections to backend EC2 instances. These servers are hardened and secured to reduce attack surfaces and thus minimize the chances of penetration. However, you still need to manage these instances as you would any other application or web server. The onus is on you to ensure that the EC2 instances are highly secured, patched...

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