Medium
ELB
Regional
Classic Load Balancer should span multiple Availability Zones
NIST
Description
This check ensures that Classic Load Balancers are configured to span multiple Availability Zones. This configuration increases the fault tolerance of the application.
Remediation
To configure a Classic Load Balancer to span multiple Availability Zones, follow these steps:
Steps
- Open the Amazon EC2 console at https://console.aws.amazon.com/ec2/.
- On the navigation pane, under LOAD BALANCING, choose Load Balancers.
- Select the Classic Load Balancer.
- Choose the Description tab, and find the Availability Zones section.
- Add additional Availability Zones if only one is selected.
Compliance
NIST