Denial of Service Attacks (DoS)

In this article we will discuss Denial of Service Attacks (DoS), will make brief discussion on DoS, In last article we discuss about Reconnaissance Attacks.

Denial of Service (DoS) attacks are the most publicized form of attack and also among the most difficult to eliminate. Even within the attacker community, DoS attacks are regarded as trivial and considered bad form because they require so little effort to execute.

In computing, a denial-of-service attack is a cyber-attack in which the perpetrator seeks to make a machine or network resource unavailable to its intended users by temporarily or indefinitely disrupting services of a host connected to the Internet. But because of their ease of implementation and potentially significant damage, DoS attacks deserve special attention from security administrators.

DoS attacks take many forms. Ultimately, they prevent authorized people from using a service by consuming system resources. A distributed denial-of-service (DDoSattack occurs when multiple systems flood the bandwidth or resources of a targeted system, usually one or more web servers. Such an attack is often the result of multiple compromised systems (for example, a botnet) flooding the targeted system with traffic.

To help prevent DoS attacks it is important to stay up to date with the latest security updates for operating systems and applications. For example, the ping of death is no longer a threat because updates to operating systems have fixed the vulnerability that it exploited.

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