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Let us start with a news section, denial of service, also called Hazardous.

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In this lecture, we will have an overview to what is denial of service or denial of service attack

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also to the doctor, that is a cyber attack in which the hacker seeks to make a machine on network resource

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unavailable to its intended users by temporarily or indefinitely disrupting services of who's connected

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to the Internet.

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Denial service is typically accomplished by flooding the targeting machine or resource with a superfluous

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request.

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Or you can see actually bogus or unwanted requests in an attempt to overload systems and prevent some

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or all legitimate requests from being fulfilled.

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Now, in a distributed denial of service, that is, the details attack.

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The incoming traffic from the victim originates from many different sources.

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This effectively makes it impossible to stop the attacks simply by blocking a single source.

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But does other details.

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Attack is analogous to a group of people crowding the entry door of a shop, making it harder for legitimate

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customers to enter, therefore disrupting the trade.

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Criminals often often targets sites or services posted on high profile Web servers such as banks or

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credit card payment gateways.

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Revenge blackmail activism can motivate these types of attacks.

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A denial of service attack is any type of attack that prevents individuals from accessing a particular

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resource or service.

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Essentially, the attack affects the availability of Internet or network based services, which hurts

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under the golden and information security that the CIA tried, which stands for confidentiality, integrity

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and availability.

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This is why information security professionals care about this DOS attack and constantly determine methods

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mediated.

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Well, on your screen you can see that there is a hacker who has compromised the command and control

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server on that server.

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There are various bottlenecks and also Hacker has compromised all those computer systems, also called

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as botnet.

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And now these partners are floating a particular victims server or also you can call a particular victim's

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computer system.

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Therefore, the system will crash and the hacker is successful in getting autodidacts or attack.

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In the next lecture, we will see categories of DOS attack.