Denial of Service

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CERT Advisory CA-2000-01 Denial-of-Service Developments :

- Denial of Service developments including description, impact, and solutions.
Cisco :

- Strategies to protect against distributed denial of service (DDoS) attacks. This article applies primarily to sites using Cisco equipment.
DDoS World :

- Knowledge base: including news articles, white papers, and advisories.
Defeating DDoS :

- An illustrated white paper describing Distributed Denial of Service (DDoS) attack methodology and prevention.
Denial of Service Attacks White Papers, Webcasts and Product Information from Top IT Vendors :

- Research the latest Denial of Service Attacks technologies, tools and techniques. Read white papers, case studies, webcasts and product information from multiple vendors.
Denial of Service Database :

- Details of many attacks: categorized by platform affected and using OSAT notation. No longer updated.
Denial of Service (DoS) on the Internet :

- Academic paper and slides on Denial of Service attacks.
Denial of Service (DoS) Resource Page :

- Collection of articles and links about Denial of Service attacks
Denial of Service Help Page :

- Advice for victims of Denial Of Service Attacks, geared towards users of IRC (Internet Relay Chat)
Denial-of-service attack :

- Description of DDoS and prevention resources from Wikipedia Encyclopedia.
Distributed Denial of Service - Protecting Critical Systems :

- White paper describing and giving detailed information on distributed denial of service (DDoS) attacks and prevention and intervention methods. Illustrated.
Distributed Denial of Service (DDoS) Attacks/tools :

- Link resources for understanding, diagnosing and preventing DDoS attacks.
DoShelp.com :

- Tools and patches to protect a person's computer from hackers, Denial of Service, and other intrusions.
Magnification Attacks: smurf and fraggle :

- Security white paper describing some common magnification (smurf) attacks, what they are, and how to avoid them.
Microsoft Windows Update :

- Latest bug fixes for Microsoft Windows, including fixes for some possible DoS attacks.
Network Ingress Filtering :

- A simple, effective, and straightforward method for network administrators to prohibit DoS attacks which use forged IP addresses.
Protecting Networks from DoS Attacks :

- Solution paper on the use of bandwidth management to protect networks from distributed denial of service attacks and malicious traffic.
SecurityFocus :

- Site maintains an database of vulnerabilities and solutions including Denial Of Service attacks.
Smurf Amplifier Registry :

- The Smurf Amplifier Registry (SAR) lets you probe Internet connected IP networks to see whether or not they are configured in a way that will allow perpetrators to use them for smurf amplification.
Smurf Attack Information :

- White paper describing and providing practical information on how to minimize the effects of smurf attacks.
Trinoo Analysis :

- An analysis of the DoS Project's trin00 master/slave programs, which implement a distributed network denial of service tool.
Understanding Denial-of-Service Attacks :

- A brief overview on identifying DoS attacks from the US-CERT (United States Computer Emergency Response Team).
Webscreen Technology :

- Offers filtering appliances with DDoS mitigation features.
Whatis Definition of Denial of Service :

- Definition plus discussion of various types of DoS attacks and how they work, including Buffer Overflow, SYN, Teardrop and Smurf.
Zombie Zapper :

- Free, open source tool that can tell a zombie system to stop flooding. Zombie Zapper works against Trinoo, TFN, Stacheldraht, Troj_Trinoo (the trinoo daemon ported to Windows), and Shaft.
GCN.com: How to Stop a Service Denial Attack Before It Stops You :

- Shawn P. McCarthy provides a quick overview of various kinds of Distributed Denial of Service (DDoS) attacks. He also explains why defending against this type of attack requires upstream infrastructure providers to cooperate with the victim. (July 2, 2001)
CERT Incident Note: DoS Attacks Using Nameservers :

- Description of how intruders use name servers to execute packet flooding denial of service attacks. (January 15, 2001)
ACM: Ubiquity - Distributed Denial-of-Service Attacks :

- Article by M. E. Kabay about the effect of DDoS attacks on major e-commerce sites, and the legal ramifications thereof. (February 20, 2000)
Stacheldraht Analysis :

- An analysis of "stacheldraht", a distributed denial of service attack tool, based on source code from the "Tribe Flood Network" distributed denial of service attack tool. (December 31, 1999)