Ping of DeathВ Attacks involve the deliberate sending of IP packets larger than those allowed by the IP protocol.UDP FloodВ A type of attack in which random ports on the target are overwhelmed by IP packets containing UDP datagrams.HTTP FloodВ A type of attack in which HTTP GET or POST requests are used to attack the web server.

This attack exploits weaknesses of the TCP connection sequence known as a 3-way handshake. SYN FloodВ A succession of SYN requests is directed to the targetвЂ™s system in an attempt to overwhelm it.UDP Flood, TCP Flood, NTP Amplification DNS AmplificationHere are some examples. Volumetric attacks are easy to generate by employing simple amplification techniques, so these are the most common forms of attack. Volumetric AttacksВ send high volumes of traffic in an effort to saturate a victimвЂ™s bandwidth. Syn FloodВ and Ping of DeathВ are some examples. Such attacks use all the processing power of the victim or other crucial resources (a firewall, for instance) and cause service disruptions.

Protocol Based AttacksВ focus on exploiting a weakness in Layers 3 or 4 of the protocol stack. An example of this is the HTTP Flood attack. These attacks are difficult to detect and mitigate. They establish a connection with the target and then exhaust server resources by monopolizing transactions and processes. These attacks exploit a weakness within the Layer 7 protocol stack. DoS or DDoS attacks are designed to cause enough network or server resources to be unresponsive to legitimate requests.ДЄpplication Layer AttacksВ go after web applications, and often use the most sophistication.

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