A company is using AWS Organizations to develop a multi-account secure networking strategy. The company plans to use separate centrally managed accounts for shared services, auditing, and security inspection. The company plans to provide dozens of additional accounts to application owners for production and development environments. Company security policy requires that all internet traffic be routed through a centrally managed security inspection layer in the security inspection account. A security engineer must recommend a solution that minimizes administrative overhead and complexity.
Which solution meets these requirements?

Question

A company is using AWS Organizations to develop a multi-account secure networking strategy. The company plans to use separate centrally managed accounts for shared services, auditing, and security inspection. The company plans to provide dozens of additional accounts to application owners for production and development environments. Company security policy requires that all internet traffic be routed through a centrally managed security inspection layer in the security inspection account. A security engineer must recommend a solution that minimizes administrative overhead and complexity.

Which solution meets these requirements?

Fahrurrazi . · Accepted Answer

Use AWS Control Tower. Modify the default Account Factory networking template to automatically associate new accounts with a centrally managed transit gateway and to create a default route to the transit gateway in the default route table. Create an SCP that denies the AttachlnternetGateway action. Attach the SCP to all accounts except the security inspection account.

Fahrurrazi . · Answer

Use AWS Control Tower. Modify the default Account Factory networking template to automatically associate new accounts with a centrally managed VPC through a VPC peering connection and to create a default route to the VPC peer in the default route table. Create an SCP that denies the CreatelnternetGateway action. Attach the SCP to all accounts except the security inspection account.

Fahrurrazi . · Answer

Create a centrally managed VPC in the security inspection account. Establish VPC peering connections between the security inspection account and other accounts. Instruct account owners to create default routes in their account route tables that point to the VPC peer. Create an SCP that denies the Attach InternetGateway action. Attach the SCP to all accounts except the security inspection account.

Fahrurrazi . · Answer

Enable AWS Resource Access Manager (AWS RAM) for AWS Organizations. Create a shared transit gateway, and make it available by using an AWS RAM resource share. Create an SCP that denies the CreatelnternetGateway action. Attach the SCP to all accounts except the security inspection account.Create routes in the route tables of all accounts that point to the shared transit gateway.

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