Book Image

AWS Certified Security – Specialty Exam Guide

By : Stuart Scott
Book Image

AWS Certified Security – Specialty Exam Guide

By: Stuart Scott

Overview of this book

AWS Certified Security – Specialty is a certification exam to validate your expertise in advanced cloud security. With an ever-increasing demand for AWS security skills in the cloud market, this certification can help you advance in your career. This book helps you prepare for the exam and gain certification by guiding you through building complex security solutions. From understanding the AWS shared responsibility model and identity and access management to implementing access management best practices, you'll gradually build on your skills. The book will also delve into securing instances and the principles of securing VPC infrastructure. Covering security threats, vulnerabilities, and attacks such as the DDoS attack, you'll discover how to mitigate these at different layers. You'll then cover compliance and learn how to use AWS to audit and govern infrastructure, as well as to focus on monitoring your environment by implementing logging mechanisms and tracking data. Later, you'll explore how to implement data encryption as you get hands-on with securing a live environment. Finally, you'll discover security best practices that will assist you in making critical decisions relating to cost, security,and deployment complexity. By the end of this AWS security book, you'll have the skills to pass the exam and design secure AWS solutions.
Table of Contents (27 chapters)
1
Section 1: The Exam and Preparation
3
Section 2: Security Responsibility and Access Management
8
Section 3: Security - a Layered Approach
15
Section 4: Monitoring, Logging, and Auditing
18
Section 5: Best Practices and Automation
21
Section 6: Encryption and Data Security

The Route Table and Network ACL tabs

The Route Table and Network ACL tabs allow you to view the associated route table and NACL with the subnet and make changes as necessary.

The following screenshot shows a default route (local) with another route pointing to an IGW. Routing will be covered in more detail in the Route tables section of this chapter:

In the following NACL, we can see two rules, including a default rule denying ALL traffic to the subnet that doesn't meet any other rules in the access control list. NACLs are covered in more detail in a later section of this chapter titled Network access control lists:

It's worth pointing out at this stage that a subnet can only be associated with a single NACL and a single route table, but multiple subnets can share the same NACL and route table. I will cover more on both of these components in the upcoming sections in this chapter.