Software Engineering Institute

This video demonstrates how TopGen and GreyBox, two software tools developed by the SEI, work together to create a realistic Internet experience in training environments that must be isolated from production networks for security reasons. TopGen provides multiple co-hosted virtual application layer services, such as HTTP, DNS, and email. TopGen is designed to work with GreyBox, which acts as a realistic Internet backbone. Together, these tools deliver the complete package of a realistic Internet for disconnected networks.