Security Groups are another layer of protection for the instances. They are pretty much similar to NACL. They also allow and deny the traffic. Unlike NACL, they are stateful. This means that the return traffic is allowed regardless of the inbound rule. As mentioned, NACL sits outside the subnet and evaluates the traffic before sending it in and out of the subnet, whereas Security Groups protect the traffic to flow into the instances. A Security Group sits inside the subnet, but it is not specifically assigned to one subnet. This is also a second level of firewall. Security Groups support only the allow rule, and all the rules are evaluated before allowing the traffic to flow. You get one Security Group in each region by default when you set up your AWS account, and it is associated with the default VPC. Afterwards, every time you create a new VPC, a new Security...
AWS Tools for PowerShell 6
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AWS Tools for PowerShell 6
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Overview of this book
AWS Tools for PowerShell 6 shows you exactly how to automate all the aspects of AWS. You can take advantage of the amazing power of the cloud, yet add powerful scripts and mechanisms to perform common tasks faster than ever before.
This book expands on the Amazon documentation with real-world, useful examples and production-ready scripts to automate all the aspects of your new cloud platform. It will cover topics such as managing Windows with PowerShell, setting up security services, administering database services, and deploying and managing networking. You will also explore advanced topics such as PowerShell authoring techniques, and configuring and managing storage and content delivery.
By the end of this book, you will be able to use Amazon Web Services to automate and manage Windows servers. You will also have gained a good understanding of automating the AWS infrastructure using simple coding.
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Current Title:
AWS Tools for PowerShell 6
Table of Contents (17 chapters)
Preface
Free Chapter
PowerShell Essentials
The AWS Overview
Installing PowerShell Core and AWS Tools
AWS Identity and Access Management
AWS Virtual Private Cloud
AWS Elastic Compute Cloud
AWS Simple Storage Service
Elastic Load Balancer
Auto Scaling
Laying Foundation for RDS Databases
DB Instance Administration and Management
Working with RDS Read Replicas
AWS Elastic Beanstalk
AWS CloudFormation
AWS CloudWatch
Customer Reviews