Security for Networks Virtual Access of Cloud Computing

The security level of networks virtual access is one of the key indexes to evaluate the IaaS capability in cloud computing. Due to the introduction of virtualization technology, the boundaries of physical security domain have been broken and thus the traditional network access security and management strategies are not applicable any longer. Therefore, the security management of convergence between virtualization server and network has attracted more and more attention. In this paper, the challenges of networks virtual access are analyzed, and then referring to the study of standardization organizations, an overview of the existing technical solutions is presented from three aspects: the virtual security domains, traffic protection and traffic management. In addition, several related products and solutions of IT enterprises are introduced. At last, this paper argues there is still much improvement space for existing technology and product solutions.