This attack targets a computer, server, or network and is either an intentional or accidental byproduct of instruction code that is either launched from a separate network or Internet-connected system, or directly from the host. A DoS attack is designed to disable or shut down the target, and disrupt the system's ability to respond to legitimate connexion requests. A denial-of-service attack overwhelms its target with false connexion requests, so the target ignores legitimate requests.