Book Image

Practical AWS Networking

By : Mitesh Soni
Book Image

Practical AWS Networking

By: Mitesh Soni

Overview of this book

Amazon Web Services (AWS) dominates the public cloud market by a huge margin and continues to be the first choice for many organizations. Networking has been an area of focus for all the leading cloud service providers. AWS has a suite of network-related products which help in performing network related task on AWS. This book initially covers the basics of networking in AWS. Then we use AWS VPC to create an isolated virtual cloud for performing network-related tasks. We then provide an overview of AWS Direct Connect after taking a deep dive into scalability and load balancing using the auto scaling feature, Elastic Load Balancing, and Amazon Route S3. Toward the end of the book, we cover troubleshooting tips and security best practices for your network. By the end of this book, you will have hands-on experience of working with network tasks on AWS.
Table of Contents (15 chapters)
Title Page

Security groups

Security groups work like a firewall and manage inbound and outbound traffic based on configured rules at the instance level.

We can assign different security groups to different instances based on our needs. A default security group, that is, the default VPC security group that is available in both EC2 dashboard and VPC dashboard. Let's click on Create Security Group:

  1. Provide a Security group name and select VPC. Then, click on Create:
  1. Add an Inbound or Outbound rule based on your requirements and click on Create:
  1. Verify the security group in the dashboard:
A security group is applicable at an instance level. Up to five security groups can be assigned to an instance. You can create 500 security groups per VPC (per region), 50 inbound or outbound rules per security group, and 5 security groups per network interface.