DoS - attacks (Denial of Service Attack) or "denial of service" - the most basic category of attacks in the area of computer security. The term can be applied to any situation in which an attacker tries to prevent any use of a resource. This can be achieved in many ways, both physical and virtual. The purpose of DoS-attacks is to create conditions of the site, in which the user can not access it. Most often, hackers do this by throwing a huge poster of "garbage" queries, and users can no longer get through to the site: the legitimate requests are drowning in "noise".
