Web Server Diagnostics

The tests on this webpage indicate which dependencies are functioning correctly within the webserver code.

Your task is to find out why some are failing and to fix them, without changing code on the webserver.

This test performs an HTTP (port 80) GET request to 1.1.1.1.

This test calls SSM with the API call GetParameter to obtain configuration. It requires the appropriate network routing and IAM permissions.

This test calls DynamoDB using the GetItem API to retrieve data from a table. It requires the appropriate network routing and IAM permissions for the table, the VPC Endpoint and the Instance role.

This test attempts to retrieve an object from S3: s3://networking-base-vpc-infrastr-networkingassetbucket-u6ank1r77wvs/artifacts/three-tier-webstack/s3_get_green_checkmark.png. This test requires the appropriate network configuration (security group rules, network ACLs, routing) as well as the correct IAM permissions for the bucket, the VPC Endpoint and the instance role.

This test calls the EC2 Instance Metadata service to obtain a number of details: availability zone, instance ID, instance type, private hostname and private IP address. See the documentation page for more details.

This test attempts to use the within-VPC Amazon Route 53 Resolver server to resolve the DNS record "aws.amazon.com". This test requires no connectivity outside of the VPC. See the documentation page for more details.