Kumo - DDoS mitigation

Kumo is a project started in order to provide a free, open-sourced and reliable solution in DDoS mitigation.

While creating Kumo I was thinking about it as a better alternative to fail2ban software. fail2ban is great in blocking abusing users at a small scale but when there are thousands of requests per seconds it starts to struggle quite a lot with CPU spiking to 90%-98% and basically killing the server. Kumo in the same scenario can keep the CPU usage around 1%-5% and it has some nice bonus features like enabling Under Attack Mode in Cloudflare.

🚗 Requirements

• .NET Core 2.1
• Cloudflare
• Linux server
• Nginx

🎡 Features

• Lightweight & fast
• Supports both IPv4 and IPv6
• Mitigates both Layer7 (HTTP) DoS and DDoS attacks
• Enables Cloudflare Under Attack Mode when massive DDoS is detected (optional)

👨‍💻 How does it work

A basic infographic to better visualise what's going on under the hood.
Please keep in mind that this is a very simplified example.

🏁 Installation

Check out this amazing wiki article!
It explains pretty much everything you need to know.

📬 Contact

• Email: [email protected]

📃 License

• Zaczero/Kumo
• JamesNK/Newtonsoft.Json

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