Create Security Group

Here, you'll create a security group you will later use to authorize access to your Redshift cluster.

A security group will act as firewall rules for your Redshift cluster to control inbound and outbound traffic.

Navigate to the EC2 service

Under Network and Security in the left navigation pane, select Security Groups. Click the Create Security Group button to launch a wizard.

In the Create security group wizard, enter the basic details.

Section	Field	Value
Basic details	Security group name	`redshift_security_group`
	Description	`Authorise redshift cluster access`
	VPC	Choose the default VPC It is a VPC in a default region, and has a public subnet in each Availability Zone. If a default VPC doesn't show up, create a default VPC

Create a default VPC, if not available already

In the Inbound rules section, click on Add Rule and enter the following values:

Section	Field	Value
Inbound rules	Type	Custom TCP Rule
	Protocol	TCP
	Port range	5439 The default port for Amazon Redshift is 5439, but your port might be different.
	Source type	Custom
	Source	`0.0.0.0/0` (Anywhere in the world)

Important: Using 0.0.0.0/0 is not recommended for anything other than demonstration purposes because it allows access from any computer on the internet. In a real environment, you would create inbound rules based on your own network settings.

Outbound rules allow traffic to anywhere by default.

Click on the Create security group button at the bottom. You will see a success message.