An Implementation: Enhancing Security of Network System Using IP Filter and Cryptography (original) (raw)

Network firewalls are a software appliance running on general purpose hardware or hardware-based firewall computer appliances that filter traffic between two or more networks .In computing, a firewall is a network security system that monitors and controls the incoming and outgoing network traffic based on predetermined security rules [1]. Routers that pass data between networks contain firewall components and can often perform basic routing functions as well. In this research here is three layer securities we provide to our network during message transmission. This work done at host-based firewall .We use the concept of socket programming (IP address+ Port no.) with client server model in which Client which is connected with server using socket programming only able to communicate with server, also we enhance the cryptographic mechanism using the RSA algorithm. We have enhanced security of network at host-based firewall using One time password generation.