What is a distributed denial of service attack?


As its name suggests, disabling an attack is an attacker attack that denies users access to a system, service, website, application, or another network-connected resource. An attack usually causes the system to respond slowly or may shut down completely.


A single-source attack is called a simple denial of service (DoS). However, nowadays there are the most common denial of service (DDoS) attacks, which are launched against multiple sources but are organized from a hub. Shared attacks are larger, potentially more destructive, and more difficult for the victim to detect and stop.


Whether it is DoS or DDoS, the result is the same: legitimate users cannot connect to the resources they should have access to. DDoS attacks are one of the most effective ways in which malicious people exist, and the third is the so-called three principles of security: confidentiality, integrity and existence. CIA triad.


How does a DDoS attack work?

Most DDoS attacks are designed to consume all network bandwidth or resources available on the target network, system, or website. An attacker would use one of the many available methods and tools to flood a target with malicious or annoying requests, or by using a protocol or natural vulnerability to stop the system from responding to the request. The effects of a DDoS attack are like an entrance to a concert hall that would suddenly be filled with a bunch of fake-flagged buses. Legitimate ticket holders standing on a clean line will not have access to the interior.

What are the most common types of DDoS attacks?

Different distributed denial of service attack vectors targets different components of a network connection. To understand how different DDoS attacks work, it is important to know how to establish a network connection. A network connection to The Internet consists of many different components or "layers". Just like building a house, every step of the model has a different purpose. The OSI model illustrated below is a conceptual framework used to describe network connectivity on 7 separate layers.

Who is the target of DDoS attacks?
In large-scale or independent industries, almost every public domain organization is exposed to DDoS attacks. Publicly managed websites, by their very nature, are designed to invite online visitors, a natural potential for potential users. Unprotected and unprotected networks are especially vulnerable to this because they do not have security mechanisms, which will alert them to possible security checks, abnormal behavior or volume fluctuations.


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