New approach in the applications and forensics of the networks of the internet of things based on the fog infrastructure using SDN

Ubiquitous computing with smart mobile devices, internet of things, virtualisation, cloud, and fog is changing yesteryears' static networks to dynamic networks of mobile smart devices. Fog computing is a pattern which expands cloud computing and the provision of related services to the network edge. Therefore, fog computing was recently introduced to provide storage and network services between end users and traditional cloud computing data centres. The present study aimed to consider the structure, architecture and applications of fog computing and analyse its differences and similarities with cloud computing, examine forensics in these networks and finally, present a new approach in this regard. This paper describes how the emerging technology - software defined networking (SDN) can be deployed a single infrastructure and leveraged to provide scalable flexible forensic solutions in this diverse and service providers/IT in a deal with the dynamic nature of today's networks attacks.