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A Hybrid Port Knocking System,
The network security has become a primary concern on the Internet in order to provide protected communication between hosts/nodes in a hostile environment. In order to protect network resources, each service provider pose a number of nontrivial challenges to security design and set its own policies for accessing resources on the network. These challenges make a case for building security solutions that achieve both broad protection and desirable network performance in terms of minimum data overhead and delay. It is so crucial to have computationally cheap and simple defense mechanisms that allow early protection against all types of attacks. In particular, it becomes very common and useful to have multiple progressively stronger layers of security, rather than attempting to have a single perfect security layer.
Port-Knocking History:
In computer networking, Port Knocking is a method of externally opening ports on a firew
