AWS Control Tower Interaction with IAM Identity Center

Overview

AWS control tower is a way to set up the multi-account and govern them, which follows best practices. It organizes several AWS services like AWS organization, AWS IAM identity center, and AWS service catalog to build a landing zone, in less than an hour, and all the resources are managed on the user’s behalf.
AWS Control Tower provides control to the high-level rule with ongoing governance for the AWS environment. There are two kinds of control: preventive and detective. And there are types of guidance that apply to these two kinds of control: mandatory, strongly recommended, or elective. This control can be used to check the security logs and access permissions that are necessary for the cross-account that is created and not alerted.
Any operation performed on the landing zone such as creating or provisioning accounts in the AWS control tower console require either Identity access management, or AWS IAM Identity center (AWS Single Sign On) to authenticate that you’re an authorized user. You can authenticate using an AWS username and password if you’re using the AWS control tower console.

AWS Control Tower Interaction with IAM Identity Center

You can inherit the AWS control tower with other AWS services like AWS identity center or AWS organization which helps to migrate the workload. It is one of the most reliable services including AWS IAM Identity which is a successor to AWS Single Sign-On.

Single Sign-On is a service that enables user and session authentication. The user can access multiple applications with one login credential. Such systems are called identity federations, with the Open Authorization framework enabling the user’s data to be used by third-party services without exposing the user’s password.

Step-by-Step Guide to Enable AWS Single Sign-On

Step 1: Log in to AWS Console Management and Search for “IAM Identity Center”

Step 2: Enable IAM Identity Center

Step 3: Choose Create AWS Organization.

You will be able to see IAM identity center Dashboard

Step 4: Creating a user.

Go to Users and Click on Add user

Provide the primary Information and Click Next

Step 5: Creating a Group

Click on Create Group

Enter the Group Name, and description and click on Create Group.

Select the created Group and click Next, then Review and Add user

Once the user is created, you need to verify the email address to use certain features

Step 6: Create a permission set

Go to Multi-Account permissions -> Choose permission set -> and Click Create Permission Set

Now Select the permission set type as Predefined permission set, choose AdministratorAccess and Click Next

Review and Click Create

Step 7: Setting AWS Account access for the admin user.

Go to Multi-account permissions -> Choose AWS Account -> Click Assign users or group

Assign the user and group and Click Next

Assign the permission set to the user which was created in previous steps and Click Next

Step 8:

• Before reviewing and submitting, verify the email address.
• Log in to the registered email, you will see the Invitation to AWS Organization,
• Click on “Accept Invitation”

Now you will be able to set your New Password

Step 9: Review and submit assignments to the user and click Submit

Step 10: Once you logged in to your AWS Account using Single Sign-On, you see the organization added, by clicking on Management Console you will see the AWS console page.

Conclusion

The main purpose of Single sign-on is to provide the ability for the user to log in with single credentials without memorizing multiple application login access. This increases productivity by skipping all the extra time spent on login. Since users have one password for multiple applications, the password will be complex and solid. Therefore, reduces the risk of theft.

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