Control: 2.6 Ensure detailed monitoring is enable for production EC2 Instances

Description

Ensure that detailed monitoring is enabled for your Amazon EC2 instances.

Monitoring is an important part of maintaining the reliability, availability, and performance of your Amazon EC2 instances.

Remediation

From Console:

1. Login to EC2 using https://console.aws.amazon.com/ec2/.
2. On the left Click INSTANCES, click Instances.
3. Select the EC2 instance you want to review.
4. Select the Monitoring tab.
5. Click on 'Enable Detailed Monitoring`.
6. Click on Yes, Enable.
7. Repeat steps no. 3 – 6 for any other instances that require detailed monitoring to be enabled.

From the CLI:

1. Run the monitor-instances command using the list of instances collected in the audit.

aws ec2 monitor-instances --instance-ids <i-instancename>

2. The output will show 'state: pending'.
3. Wait a few minutes and run the same command again for that instance and it will show enabled.