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Method and system for preventing blind DDoS attacks on SDN controllers

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TLDR
In this article, the authors proposed a method and system for preventing blind DDoS attacks on SDN controllers, which comprises an SDN controller resource pool monitor, a controller list dynamic switching module deployed on an SDNs switch and an attack detection application module, and the controllers carry out data interaction through data interfaces.
Abstract
The invention relates to a method and system for preventing blind DDoS attacks on SDN controllers. The system comprises an SDN controller resource pool monitor, a controller list dynamic switching module deployed on an SDN switch and an attack detection application module, and the attack detection application module and the controllers carry out data interaction through data interfaces. The SDN controller resource pool monitor is used for maintaining the establishment of a plurality of physical machine and/or virtual machine controllers, data synchronism, IP address distribution and state lists to be issued to the switch. The attack detection application module detects the communication data streams of the controllers and the switch in an SDN network, and when blind DDoS attack streams on the controllers are detected, the SDN controller resource pool monitor dynamically adjusts the number of the controllers according to attack flow generated when the blind DDoS attacks occur. The method can dynamically adjust the number of the controllers, the blind DDoS attacks on the controllers can be effectively prevented, and the usability of the SDN network is guaranteed.

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Citations
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References
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Patent

System and method for distributed denial of service identification and prevention

TL;DR: In this article, an information layer agent consults a knowledge base comprising information associated with known attack patterns, including state-action mappings, to determine if events indicate attacks, perform clustering analysis to determine whether they represent known or unknown attack patterns and initiate appropriate responses to prevent and/or mitigate the attack.
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Detecting method of DDOS (distributed denial of service) attacks

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TL;DR: In this article, a method of detecting DDOS (distributed denial of service) attacks, belonging to the field of computer network safety and comprising the steps that, (1) a data packet interception module is used for analyzing accessed network data packet information; (2) data packet feature statistic module was used for counting the analyzed network data packets information; and (3) a statistical data processing module, used for computing the proportional distribution of all kinds of data packets relative to the total number of the data packets at unit time.
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Liu Zhenxiao, +1 more
TL;DR: In this paper, a pre-judging table is used for judging whether a reverse flow has a match item or not in a global reverse network address translation (NAT) flow table according to feature information of the reverse flow.
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