Network Virtualization via Cloud Computing and its Security Issues

Cloud is a concept of updating of resources without affecting the infrastructure to reduce the need of backup system and encourage the continuous execution of application. Cloud provides potential “Reliability” and “Scalability” for the applications either deployed or running on cloud. Cloud computing is offering utility oriented IT services to users worldwide. It will speed up the development of intelligent, proactive “nextgen” documents that will improve the productivity of knowledge workers around the world, but several challenges lie in the way before the cloud becomes a widely accepted paradigm for computing. There are concerns about security and there is considerable confusion about the relative merits of public, private and hybrid clouds. It enables hosting of applications from consumer, scientific and business domains. In this paper, we discuses a Cloud Computing approach for context-aware navigation by exploiting the computational power of resources made available by Cloud Computing.