PyNetSim targets the generation of background traffic and anomaly generation for testing anomaly detection algorithms. It is written basically without simulation in terms of computer science, but it uses parts of simulation theory. Therefore, it is a generator of such traffic types. It deploys its full power when running on many virtual machines.
StopHack is a simple to use and easy to install intrusion prevention system. It is fully adaptable and easily customized to your environment. It is built on top of proven bandwidth arbitration technology so the traffic passing through it won't be slowed down. Every packet is analyzed with regular expression-based behavior anomaly detection, and hackers are blocked immediately. It prevents reflected cross-site scripting, SQL injection, directory traversal, reflected URL redirects, login brute forcing, remote shell execution, and more.