Introduction to Denial of Service

[toggle_content title="Transcript"] Hi Leo Dregier here I want to talk about denial of service. So far within these penetration testing modules we have really focused our time on information being disclosed to us and then a little bit about changing the integrity of our systems but in the IEC triad we have to balance our confidentiality integrity and availability. This is one those special modules where we focus specifically on availability. A lot of people take this for granted but ask any big company. Amazon, eBay or anybody who has gone through history denial of service attacks and the effects which it can have. Now there is two major types here - regular denial of service and distributed denial of service. Both of them focus on availability but the biggest differentiating factor is in a distributed denial of service attack you are basically using multiple computers to your advantage. We setup these robotic networks and the more that we have out there the better off we are in terms of the eyes of the attacker. Now also in this module I want to point out you really don't want to go out on the internet and just start denial servicing everybody. We have to act legally we have to act ethically we need to make sure we are doing the right thing. There is plenty of tools out there in which we can use distributed denial service but again we have to act responsibly and legally. We will follow up and finish up with counter measures. What kind of companies do to protect themselves. Not only from simple availability but also how do you deal with distributed denial service style attacks because the last thing you want is for your website to go down. More importantly you don't want your internal network to go down either. So let us go ahead and get into the details of distributed denial of service. [/toggle_content] This next module in the Penetration Testing and Ethical Hacker series introduces you to Denial of Service (DoS).  These lessons cleanly explore what Denial of Service is, what happens as a result, and why that information is critical to you as an ethical hacker. The Denial of Service module delivers an in-depth analysis on the availability of info in terms of Penetration Testing and specifically to Denial of Service attacks.  It clearly articulates the relationships of the network and to business, and discusses the two types of attacks you’ll face: regular Denial of Service (DoS) and Distributed Denial of Service (DDoS).  You’ll also learn the differences between the two and unique ways of how to address each event. And finally, you’ll learn countermeasure techniques for DOS attacks.  You'll see when to utilize a specific countermeasure, and how to determine what your most effective penetration testing strategies will be. The topics explored in this Denial of Service module include:
  • Whiteboard, which shows the interrelationship of all the basic components utilized in this module
  • And the following Denial of Service labs:
    • Flood hping3
    • LOIC Lab
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