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Diagram of a DDoS attack. Note how multiple computers are attacking a single computer. In computing, a denial-of-service attack (DoS attack) is a cyberattack in which the perpetrator seeks to make a machine or network resource unavailable to its intended users by temporarily or indefinitely disrupting services of a host connected to a network.
According to Cambiaso et al, [1] slow DoS attacks exploit one or more parameters characteristics of TCP-based connections.Such parameters are exploited to keep connections alive longer than expected by preserving the attack bandwidth, hence seizing the server resources for long times, by at the same time reducing attack resources.
One technique of DDoS attacks is to use misconfigured third-party networks, allowing the amplification [8] of spoofed UDP packets. Proper configuration of network equipment, enabling ingress filtering and egress filtering , as documented in BCP 38 [ 9 ] and RFC 6959, [ 10 ] prevents amplification and spoofing, thus reducing the number of relay ...
On October 21, 2002 an attack lasting for approximately one hour was targeted at all 13 DNS root name servers. [1] The attackers sent many ICMP ping packets using a botnet to each of the servers. However, because the servers were protected by packet filters which were configured to block all incoming ICMP ping packets, they did not sustain much ...
Data center security is the set of policies, precautions and practices adopted at a data center to avoid unauthorized access and manipulation of its resources. [1] The data center houses the enterprise applications and data, hence why providing a proper security system is critical.
Unlike attacks carried out in person, determining the entity behind a cyberattack is difficult. [100] A further challenge in attribution of cyberattacks is the possibility of a false flag attack , where the actual perpetrator makes it appear that someone else caused the attack. [ 99 ]