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English - English
Definition of denial of service attack in English English dictionary
A hacker attack designed to prevent your computer or network from operating or communicating
Conduct directed towards a website or email recipient which has the objective of making it impossible for legitimate users of the website or email address to use the facility This might take the form of using software to generate a very large number of requests for pages off the website, or sending a very large number of emails - mailbombing
An assault on a network that floods it with so many additional requests that regular traffic is either slowed or completely interrupted Unlike a virus or worm, which can cause severe damage to databases, a denial of service attack interrupts network service for some period A distributed denial of service (DDOS) attack uses multiple computers throughout the network that it has previously infected The computers act as "zombies" and work together to send out bogus messages, thereby increasing the amount of phony traffic
This is a form of attack on company information systems that involves flooding the companys Internet servers with huge amounts of traffic Such attacks effectively halt all of the companys Internet activities until the problem is dealt with
Internet or IP services disrupted by a flood of phony traffic that clogs the provider's network SYN Flood, Ping o' Death and Ping Flooding are some examples of Denial of Service attacks
Often used in a security context, in which no information is compromised, but no one can get any work done, either For example, a denial of service attack on a telephone system might involve large-scale destruction of cables or switching gear
An attack that consumes the resources on your computer for things it was not intended to be doing, thus preventing normal use of your network resources for legitimate purposes
Unwanted or malicious messages that render network resources non-functional Some examples are Ping of Death, SYN flood, IP spoofing and Smurf attacks Top
An attack that is specifically designed to prevent the normal functioning of a system, and thereby to prevent lawful access to that system and its data by its authorized users DoS can be caused by the destruction or modification of data, by bringing down the system, or by overloading the system's servers to the extent that service to authorized users is delayed or prevented Denial of Service attacks normally stem from external sources using telecommunications (such as via the Internet); or from disaffected or disgruntled employees who bear a grudge towards the company
Preventing legitimate users access to systems and networks A common Internet trick is to force thousands of zombie computers to flood a server with millions of meaningless messages-preventing anyone else from using the system
On the Internet, a denial of service (DoS) attack is an incident in which a user or organization is deprived of the services of a resource they would normally expect to have Typically, the loss of service is the inability of a particular network service, such as e-mail, to be available or the temporary loss of all network connectivity and services In the worst cases, for example, a Web site accessed by millions of people can occasionally be forced to temporarily cease operation A denial of service attack can also destroy programming and files in a computer system Although usually intentional and malicious, a denial of service attack can sometimes happen accidentally A denial of service attack is a type of security breach to a computer system that does not usually result in the theft of information or other security loss However, these attacks can cost the target person or company a great deal of time and money
An attack on a system or portion of a system that results in at least the temporary inability of others to use the system for its intended purpose Such attacks do not directly destroy or steal data
A Denial of Service is a specific arrangement of data sent to a target with the specific intent of interrupting that target's Internet service Examples of denial of services are: Winnuke, Teardrop, Land, Nestea, Smurf and Fraggle There are new denial of service attacks created on a daily basis and the best way to protect yourself is to install all of the appropriate patches
Action(s) that prevent any part of an information system from functioning in accordance with its intended purpose Usually flooding a system to prevent it from servicing normal and legitimate requests
A denial of service occurs when a piece of hardware or a website is inundated with requests From a client perspective, a denial of service appears as a "page cannot be displayed" error
1) A form of attack that reduces the availability of a resource 2) Result of any action or series of actions that prevent any part of an IS from providing data or other services to authorized users
A prevention of the use of information resources either intentionally or unintentionally, which affects the availability of the information resources Examples of such attacks are SYN flood, Ping O death and Ping flooding
When a network is flooded with traffic, the systems cannot respond normally, so service is curtailed or denied This is a favorite technique of network saboteurs