Useful Links

Cloudtrail Services and Integrations

API Calls - https://docs.aws.amazon.com/awscloudtrail/latest/userguide/cloudtrail-aws-service-specific-topics.html (e.g. EC2 API Reference - VPC)

Networking

NACLs and Ephemeral Ports - https://docs.aws.amazon.com/vpc/latest/userguide/vpc-network-acls.html#nacl-ephemeral-ports