By Zaigham Mahmood
This publication stories the not easy concerns that current obstacles to bigger implementation of the cloud computing paradigm, including the most recent examine into constructing power recommendations. themes and lines: offers a spotlight at the most crucial concerns and obstacles of cloud computing, overlaying cloud defense and structure, QoS and SLAs; discusses a technique for cloud defense administration, and proposes a framework for safe info garage and identification administration within the cloud; introduces a simulation device for energy-aware cloud environments, and a good congestion keep watch over process for facts heart networks; examines the problems of energy-aware VM consolidation within the IaaS provision, and software-defined networking for cloud comparable functions; experiences present developments and indicates destiny advancements in virtualization, cloud safeguard, QoS info warehouses, cloud federation ways, and DBaaS provision; predicts how the subsequent iteration of software computing infrastructures might be designed.
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Extra info for Cloud Computing: Challenges, Limitations and R&D Solutions
They suggest that the approach enables a closed box execution environment preventing a user with full privileges on the host VM to gain access to the guest VMs. Another type of attack targets vulnerabilities in a hypervisor scheduler. Zou et al.  show that an attacker can exploit a VM so that it uses more processor time than its fair share and escapes the periodic sampling performed by the hypervisor. In this attack, the adversary makes the processor idle just before the scheduler tick occurs and resumes the run after the tick finishes.
IEEE Computer Society, Los Alamitos, pp 717–722 20 S. Shafieian et al. 7. Ma X (2012) Security concerns in cloud computing. Proceedings of the 2012 fourth international conference on computational and information sciences (ICCIS 2012), Chongqing, 17–19 Aug 2012, pp 1069–1072 8. Subashini S Kavitha V (2011) A survey on security issues in service delivery models of cloud computing. J Netw Comput Appl 34(1):1–11. (Elsevier, January 2011) 9. You P, Peng Y, Liu W, Xue S (2012) Security issues and solutions in cloud computing.
Side-channel attacks can also occur in Cloud as well as non-Cloud environments. However, even in a non-Cloud environment which uses virtualization technology such as Virtual Private Server (VPS) hosting, the attacker has no way of placing their malicious VM on a target server. Therefore, the placement step which is the first required step in performing a successful side-channel attack cannot be performed, leaving little chance of success for the attacker. Nonetheless, in a public Cloud scenario, an adversary may be able to place their malicious VMs coresident with the victim’s VMs by exploiting the multi-tenancy attribute, and launching a successful side-channel attack as described earlier.
Cloud Computing: Challenges, Limitations and R&D Solutions by Zaigham Mahmood