Computer Science And Technology - Research Publications

Permanent URI for this collectionhttps://kr.cup.edu.in/handle/32116/82

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Subject: search.filters.subject.Cloud Computing

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    Impact of Denial of Service Attack on the Virtualization in Cloud Computing
    (2014) Kanika; Sidhu, Navjot
    Cloud computing is the fastest growing technology in the IT world. The technology offers reduced IT costs and provides on the demand services to the individual users as well as organizations over the Internet. Cloud computing offers infrastructure as a service (IaaS). IaaS provides infrastructure including software, hardware, storage space, network bandwidth to the users on demand over the internet. Cloud computing makes use of virtualization to provide infrastructure as a service. Virtualization is based on the concept that multiple tenants can use the same physical machine with multiple operating systems. Virtualization comprises the vulnerability of Denial of Service (DOS) attack that can affect the performance of cloud computing. A malicious VM attacker can compromise the other guest VM or the host OS. The paper explores the TCP SYN flood attack over the other guest VM by a malicious VM attacker coexisting in the virtualized cloud infrastructure. Different Parameters are analyzed over the victim VM to detect the TCP SYN flood attack
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    SLA Aware Approach for Virtual Machine Placement in Cloud Datacenter
    (Publishing India, 2014) Khurana, Surinder Singh; Kaur, Nirmaljeet
    The massive adoption of cloud computing by IT industry has caused a dramatic increase in energy consumption and its impact on the environment in terms of carbon footprints. The high cost of energy and link between energy consumption and carbon emission have raised an issue of energy management. Recently, a number of approaches have been proposed to address this issue. Most of these approaches are based upon the proper utilization of the resources. On the other side, to avoid Service Level Agreement (SLA) violations, the servers deployed in data centres can be utilized up to a maximum threshold value. To avoid SLA violation, some virtual machines (VMs) will be migrated from over utilized hosts. Although there are many techniques to select such VMs that can be migrated, but no technique considers Service Level Agreement parameters while selecting such machines. In this paper, SLA based approach to select VMs to migrate from overloaded host has been purposed. The purposed approach will work on the basis of VM categories that are negotiated in service level agreement. The simulation results demonstrate that the proposed approach demands slightly more energy than the other efficient technique (Minimization of Migration). However, it reduces the cost paid in lieu of SLA violation as it reduces SLA violations belonging to VM categories for which SLA violation penalties are higher.