Book Image

AWS Security Cookbook

By : Heartin Kanikathottu
Book Image

AWS Security Cookbook

By: Heartin Kanikathottu

Overview of this book

As a security consultant, securing your infrastructure by implementing policies and following best practices is critical. This cookbook discusses practical solutions to the most common problems related to safeguarding infrastructure, covering services and features within AWS that can help you implement security models such as the CIA triad (confidentiality, integrity, and availability), and the AAA triad (authentication, authorization, and availability), along with non-repudiation. The book begins with IAM and S3 policies and later gets you up to speed with data security, application security, monitoring, and compliance. This includes everything from using firewalls and load balancers to secure endpoints, to leveraging Cognito for managing users and authentication. Over the course of this book, you'll learn to use AWS security services such as Config for monitoring, as well as maintain compliance with GuardDuty, Macie, and Inspector. Finally, the book covers cloud security best practices and demonstrates how you can integrate additional security services such as Glacier Vault Lock and Security Hub to further strengthen your infrastructure. By the end of this book, you'll be well versed in the techniques required for securing AWS deployments, along with having the knowledge to prepare for the AWS Certified Security – Specialty certification.
Table of Contents (12 chapters)

Using a VPC gateway endpoint to connect to S3

In this recipe, we will create a VPC gateway endpoint for S3 and connect to S3 from our private subnet without any internet access.

Getting ready

To complete the steps within this recipe, we need to do the following:

  1. Create a VPC by following the Creating a VPC in AWS recipe. Create some subnets by following the Creating subnets in a VPC recipe.
  2. Subnets should be associated with the default NACL. Otherwise, we should define proper inbound and outbound rules so that we can log in to the private EC2 instance through the public EC2 instance.
  3. We should have no internet access for the private subnet. Verify this by running aws s3 ls --region us-east-1 from our private subnet. Our...