What is DoS?
| Denial Of Service |
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What is a denial of service attack? When a denial of service (DoS) attack occurs, a computer or a network user is unable to access resources like e-mail and the Internet. An attack can be directed at an operating system or at the network. Denial of service attacks can happen by attempting to flood the network with too much traffic. The network is unable to distinguish between legitimate traffic and malicious or false traffic during the attack. Other kinds of denial of service attacks include using up all the victim’s bandwidth (instead of targeting a particular service—for more see bandwidth, left) or by using all of a system’s resources on a server like memory. For example, attackers could also try to shut down a system by flooding the network with e-mail. Routing and domain name system (DNS) attacks are when the routing table is manipulated—the routing table is what computes where to send the data traveling over the network. |
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