New (2025) Book Release:
DDoS: Understanding Real-Life Attacks and Mitigation Strategies
Understand and defend against:
- SYN floods
- AI Crawlers
- UDP Amplification
- UDP Double Reflection
- TCP Reflection
- Low-And-Slow attacks
- ...and many more!
Interested?
This book will help readers better understand the technical details of DDoS attacks and provide step-by-step guidance on how to defend against them.

Author
Stefan Behte is Vice President at Babiel GmbH (part of CONET Group) and has been working in managed hosting for over 20 years.
He is a battle-tested veteran and has successfully defended his employer’s websites such as www.bundestag.de, www.henkel.com or www.auswaertiges-amt.de against attacks from Anonymous, booter services, angry movie star fans and most recently, Russia-affiliated groups such as Killnet and NoName057(16).
Watch his talks on DDoS:

What's in the book?
Introduction to DDoS and Network basics
Learn and understand the basics of network technology and DDoS attacks.
Datacenter Technology
Get to know datacenter technologies and components like firewalls, load balancers, web servers and their relevance for DDoS attacks.
Attack Origins
Get familiar with different attack origins like VPN providers, open proxies, anonymity networks, botnets, bulletproof hosters and more!
Attack Types
Look into details of different attack types: layer 3, layer 4 and layer 7 attacks will be explained in deep detail.
DDoS Countermeasures & Mitigation Design
Understand collateral damage and countermeasures for each layer of the network.
Active Self-Defense
This chapter contains a fun tought-experiement on active self-defense against DDoS attacks.
Economics of DDoS Attacks
Attacks do not only cost money for defenders, but also for attackers! Find out which economic decisions both sides need to make.