Network Ingress Filtering
- A simple, effective, and straightforward method for network administrators to prohibit DoS attacks which use forged IP addresses.
- http://tools.ietf.org/html/rfc2267

Smurf Attack Information
- White paper describing and providing practical information on how to minimize the effects of smurf attacks.
- http://www.pentics.net/denial-of-service/white-papers/smurf.cgi

Netabusechat
- Discussion about internet abuses and vulnerabilities, email spams, spyware and Trojan horses alert, and virus alert.
- http://www.netabusechat.com

Defeating DDoS
- An illustrated white paper describing Distributed Denial of Service (DDoS) attack methodology and prevention.
- http://www10.org/cdrom/papers/409/

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.
- http://www.bindview.com/Support/RAZOR/Utilities/Windows/ZombieZapper_form.cfm

Understanding Denial-of-Service Attacks
- A brief overview on identifying DoS attacks from the US-CERT (United States Computer Emergency Response Team).
- http://www.us-cert.gov/cas/tips/ST04-015.html

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.
- http://www.hostlibrary.com/DistributedDenialofService-ProtectingCriticalSystems-ddos.html

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.
- http://www.allot.com/html/solutions_enterprise_dos_attacks.shtm

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.
- http://www.bitpipe.com/rlist/term/Denial-of-Service-Attacks.html

Denial-of-service attack
- Description of DDoS and prevention resources from Wikipedia Encyclopedia.
- http://en.wikipedia.org/wiki/Denial_of_service

Webscreen Technology
- Offers filtering appliances with DDoS mitigation features.
- http://www.webscreen-technology.com/

Denial of Service (DoS) on the Internet
- Academic paper and slides on Denial of Service attacks.
- http://vayner.net/dos/

Magnification Attacks: smurf and fraggle
- Security white paper describing some common magnification (smurf) attacks, what they are, and how to avoid them.
- http://pintday.org/whitepapers/dos-smurf.shtml

GRC.com: Denial of Service Investigation and Exploration Pages
- Analysis and investigation of the denial of service threat posed by Windows XP, and reports and logs from when GRC.com was the victim of a DDoS attack.
- http://grc.com/dos/intro.htm

CERT Incident Note: DoS Attacks Using Nameservers
- Description of how intruders use name servers to execute packet flooding denial of service attacks.
- http://www.cert.org/incident_notes/IN-2000-04.html

Denial of Service Database
- Details of many attacks: categorized by platform affected and using OSAT notation. No longer updated.
- http://www.attrition.org/security/denial/

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.
- http://www.gcn.com/vol20_no17/news/4573-1.html

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.
- http://www.acm.org/ubiquity/views/m_kabay_1.html

DDoS World
- Knowledge base: including news articles, white papers, and advisories.
- http://www.ddosworld.com/

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.
- http://whatis.techtarget.com/definition/0,289893,sid9_gci213591,00.html

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.
- http://staff.washington.edu/dittrich/misc/stacheldraht.analysis

Trinoo Analysis
- An analysis of the DoS Project's trin00 master/slave programs, which implement a distributed network denial of service tool.
- http://staff.washington.edu/dittrich/misc/trinoo.analysis

CERT Advisory CA-2000-01 Denial-of-Service Developments
- Denial of Service developments including description, impact, and solutions.
- http://www.cert.org/advisories/CA-2000-01.html

Distributed Denial of Service (DDoS) Attacks/tools
- Link resources for understanding, diagnosing and preventing DDoS attacks.
- http://staff.washington.edu/dittrich/misc/ddos/

Cisco
- Strategies to protect against distributed denial of service (DDoS) attacks. This article applies primarily to sites using Cisco equipment.
- http://www.cisco.com/warp/public/707/newsflash.html

Microsoft Windows Update
- Latest bug fixes for Microsoft Windows, including fixes for some possible DoS attacks.
- http://windowsupdate.microsoft.com/

Denial of Service Help Page
- Advice for victims of Denial Of Service Attacks, geared towards users of IRC (Internet Relay Chat)
- http://www.irchelp.org/irchelp/nuke/

DoShelp.com
- Tools and patches to protect a person's computer from hackers, Denial of Service, and other intrusions.
- http://www.doshelp.com/

Denial of Service (DoS) Resource Page
- Collection of articles and links about Denial of Service attacks
- http://www.denialinfo.com/

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.
- http://www.powertech.no/smurf/

SecurityFocus
- Site maintains an extensive database of vulnerabilities and solutions including Denial Of Service attacks.
- http://www.securityfocus.org/