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What is DoS (Denial-of-Service attack)?

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Question added by Giddaluru Satheesh Kumar , Network Engineer , Pegasus International Computer Co.W.L.L
Date Posted: 2016/07/19
Faseeh Mohd koya
by Faseeh Mohd koya , IT SUPPORT ENGINEER [L2] , Ministry of Sports and Youth

A method that hackers use to prevent or deny legitimate users access to a computer. DoS attacks are typically executed using the DoS tools that send many request packets to a targeted Internet server (usually Web, FTP, or Mail server). The attack floods the server's resources and makes the system unusable. Any system that is connected to the Internet and is equipped with TCP-based network services is subject to attack.

Milind Sawant
by Milind Sawant , L2 desktop Engineer , Nityo infotech [ Dell India PVT ]

DOS attack is L2 level attack whic is block network segment.

Home Front
by Home Front , فني تكنولوجيا المعلومات , multimedia Center Systems

السلام عليكم و رحمة الله وبركاتة

Denial of service (DoS) is a form of attack that prevents users from accessing normal services, such as e-mail and a web server, because the system is busy responding to abnormally large amounts of requests. DoS works by sending enough requests for a system resource that the requested service is overloaded and ceases to operate.

ARSHAD GAFOOR
by ARSHAD GAFOOR , Network Implementation Engineer , Wipro

An easy association of an operationally significnt IP Address to a false MAC address.

In denial-of-service(DoS) attack, a hacker attempts to prevent legitimate users from accessing information of service.

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