| dc.description.abstract | In the present cyber world, Denial of Service (DoS) attack is a major threat for server
computers. When the bandwidth of servers gets low, the damage that can be made
by DoS attacks is very high. Even though there are enormous solutions to prevent
DoS attacks, since the cost is high, most organisations cannot afford them and other
cheapest solutions have a high computational cost, which affects the performance of
the servers. This paper introduces an algorithm to prevent DoS attacks on server
computers (which use a low bandwidth) in a local area network (LAN) without
affecting the overall performance of the server and its legal clients. The algorithm is
implemented to take counts of the requests and identify the MAC address of those
request sources. Afterwards, the algorithm checks whether the same request arrives
from the same MAC address repeatedly. If the result of that is true, then the
algorithm attempts to block the request from that MAC address. The developed
algorithm was tested in a server which uses a cent OS 7 server operating system and
proved the algorithm can prevent one DoS attack at a time. It is cost effective to use
and does not affect server performance and its clients unlike other methods because
it does not use any kind of high-cost data storing mechanisms. This paper describes
the algorithm development in detail and proves its effectiveness using an
experiment. | en_US |
