Security Group (SG) works as a virtual firewall that controls incoming traffic to protect resources hosted in AWS, such as EC2 and RDS, from unwanted access. The same SGs should be associated with services/resources having the same functionality and security requirements such as a cluster of web servers. SGs can span across different subnets in a VPC. SGs are stateful firewalls where you can define rules for a valid source, protocol, and port for incoming and outgoing traffic. Stateful meaning--if the connection from source to destination is allowed, the return path is also allowed. At least one SG needs to be attached to the resource at the time of resource creation. More than one SG can also be attached to a resource. The rules of an SG can be modified at any time and they will take effect immediately. An SG can be detached from the resource at any...
AWS Networking Cookbook
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AWS Networking Cookbook
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Overview of this book
This book starts with practical recipes on the fundamentals of cloud networking and gradually moves on to configuring networks and implementing infrastructure automation. This book then supplies in-depth recipes on networking components like Network Interface, Internet Gateways, DNS, Elastic IP addresses, and VPN CloudHub. Later, this book also delves into designing, implementing, and optimizing static and dynamic routing architectures, multi-region solutions, and highly available connectivity for your enterprise.
Finally, this book will teach you to troubleshoot your VPC's network, increasing your VPC's efficiency. By the end of this book, you will have advanced knowledge of AWS networking concepts and technologies and will have mastered implementing infrastructure automation and optimizing your VPC.
Table of Contents (10 chapters)
Preface
Free Chapter
Getting Started with AWS Networking Components
Building Your Own Custom VPC
VPC Advanced Components
Configuring Global Scale Infrastructure
Working with Infrastructure Automation
Working with Route 53
Cloud Security and Network Compliance
Troubleshooting and VPC Limits
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