IP Blocking For Prevention of Denial-of-Service Attacks Using Dynamic Puzzle

Moreover, after the server receive a contact-initiation memo, it will not dispatch its answer (so that the client starts its eras in-sync alongside S) till the next operative

With this comparison along with the packet rate monitoring threshold, our SDM Scheme is able to rapidly identify and stop a single host denial of service attack by detecting

Unlike previ- ous proposals for bandwidth attack detection schemes which are based on monitoring the traffic volume, our scheme is very effective for highly distributed denial

If the host initiates a TCP connection with the server by transmitting a TCP[SYN] packet across the network via a switch, assuming the switch does not have a flow-entry to forward

The contributions of this paper can be summarized as follows: (i) Presented the architecture, design, and implementation details of a novel client-puzzle protocol embedded within

In practice, when the flooding rate increases, the server may increase its puzzle difficulty to lower the request rate. This is the scenario we depict in profile 2f in which it