SOA-C02 VCE Exam Download

To meet the requirements of storing and rotating database credentials monthly and handling write-intensive traffic with variable client connections, you can use AWS Secrets Manager and Amazon RDS Proxy.

AWS Secrets Manager for Credential Rotation:

Open the AWS Secrets Manager console at AWS Secrets Manager Console.

Store the database credentials as a new secret and configure automatic rotation for every 30 days.

AWS Secrets Manager will handle the rotation process and update the secret with new credentials.

Amazon RDS Proxy for Connection Management:

Open the Amazon RDS console at Amazon RDS Console.

Create an RDS Proxy for the PostgreSQL DB instance.

Configure the proxy to handle the connection pooling and manage the connections efficiently.

The proxy will help manage the database connections, reduce the overhead on the database, and improve performance during peak loads.

This solution ensures that database credentials are securely stored and rotated automatically while handling increased database connections effectively.

AWS Secrets Manager

Using AWS Secrets Manager to Rotate Amazon RDS Database Credentials

Amazon RDS Proxy

Using AWS CloudFormation stack sets allows you to manage CloudWatch alarms across multiple accounts efficiently:

Create Stack Set: Use a CloudFormation template that defines the required CloudWatch alarms and configures them to publish alerts to an SNS topic.

Specify SNS Topic: Ensure the SNS topic is located in the logging account and has the necessary permissions set to receive publications from all accounts in the organization.

Deploy Across Organization: Implement the stack set across all accounts, ensuring centralized management and standardized deployment.

AWS Documentation Reference:

Learn more about deploying resources with CloudFormation StackSets: Working with AWS CloudFormation StackSets.

If users are unable to connect to a specific Ubuntu EC2 instance using AWS Systems Manager Session Manager while other instances are accessible, the issue is likely due to IAM permissions:

Instance Profile Permissions: Ensure that the EC2 instance has the necessary IAM permissions to interact with Systems Manager. The AmazonSSMManagedInstanceCore managed policy includes permissions required for the SSM Agent on the instance to communicate with the AWS Systems Manager service.

Attach Managed Policy: Attach the AmazonSSMManagedInstanceCore policy to the IAM role that is associated with the Ubuntu instance's instance profile. This step is crucial as it authorizes the instance to use Systems Manager services, including Session Manager.

Verify Configuration and Connectivity: After updating the instance profile, verify that users can connect via Session Manager. This solution does not require any changes to network security settings like security groups.

By ensuring that the instance has the appropriate IAM permissions, you resolve issues related to access control and Systems Manager functionality, allowing authorized personnel to connect securely without using SSH or RDP.