Book Image

AWS Certified Advanced Networking - Specialty Exam Guide

By : Marko Sluga
3 (1)
Book Image

AWS Certified Advanced Networking - Specialty Exam Guide

3 (1)
By: Marko Sluga

Overview of this book

Amazon has recently come up a with specialty certifications which validates a particular user's expertise that he/she would want to build a career in. Since the Cloud market now demands of AWS networking skills this becomes the most wanted certification to upheld ones industry portfolio. This book would be your ideal companion to getting skilled with complex and creative networking solutions. Cloud practitioners or associate-level certified individuals interested in validating advanced skills in networking can opt for this practical guide. This book will include topics that will help you design and implement AWS and hybrid IT network architectures along with some network automation tasks. You will also delve deep into topics that will help you design and maintain network architecture for all AWS services. Like most of our certification guides this book will also follow a unique approach of testing your learning with chapter-level practice exercises and certification-based mock tests. The exam mock tests will help you gauge whether you are ready to take the certification exam or not. This book will also be an advanced guide for networking professionals to enhance their networking skills and get certified. By the end of this book, you will be all equipped with AWS networking concepts and techniques and will have mastered core architectural best practices.
Table of Contents (21 chapters)
Free Chapter
Section 1: Introduction
Section 2: Managing Networks in AWS
Section 3: Managing and Securing Network-Attached Platform Services in AWS
Section 4: Monitoring and Operating the AWS Networks
Section 5: Network automation in AWS
Section 6: The Exam

Securing EC2 instance operating systems

Once we have secured the instance with the AWS services, we shouldn't forget the operating system firewall. For example, instances in the same security group are unable to communicate with each other, which means a lot of times, administrators will not think to even start up an operating system firewall. However, not using an instance operating system firewall is bad practice.

For example, multiple teams or individuals might have the ability to manage the AWS environment. One of the teams or individuals could create a rule to allow communication between all the instances in a security group. The change might even be required as there are many cases where an application might require the ability to maintain contact with its peers over the network. If the operating system firewall is not enabled, all of the ports on the machine are exposed...