April 27, 2001
Start your day with a cup of DoS
Author: JT Smith
LogError writes: "Denial of Service, or a DoS, is an action undertaken by someone, usually with a single goal, to render your host or system useless for other users, by making its services unreachable. DoS attacks can be pulled both on hardware or software. What basically happens is that your host, or some particular service it offers, becomes overloaded with requests for initializing a TCP/IP three-way handshake. Your system then tries to comply, but it gets so many requests or, it cannot identify a sender so it simply chokes itself by sending so many responses to nobody, expecting an answer for intialization of a connection. An answer he's likely never to get... That's the shortest way to explain a DoS. Of course, that is only a simplified example. The entire article is at netsecurity.org."