Distributed denial of service (DDoS) attacks vary from regular denial of service (DoS) attacks due mainly to the extra “D,” which stands for “distributed.” Typically, a DDoS attack is launched from many machines which are generally PC’s that have been infected with a virus or trojan allowing them to be controlled by a “bot herder,” who gathers the infected machines into a single collective. An attacker can then issue commands to the collective, transparently ordering the machines to attack a specific target.
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