What is a Slowloris Attack?

This attack stands out from the crowd because it requires very low bandwidth and can be fulfilled using just one computer. It works by initiating multiple concurrent connections to a web server and keeping them open for a long period of time. The attacker sends partial requests and complements them with HTTP headers once a while to make sure they don’t reach a completion stage. As a result, the server’s capability to maintain simultaneous connections is drained and it can no longer process connections from legitimate clients.

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