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The threat of cyber-attacks grows up, as one can see by several negative security-news from companies and private persons. [7] Especially small-and-medium-sized enterprises (SME) are in focus of external attackers because they have not implemented sufficient security strategies and components for their networks yet. Additionally, tablets, smartphones, and netbooks changed the requirements of IT security...
Three approaches exist for a company to migrate its services in the cloud. The first is select the most appropriate commercial cloud provider, such as Microsoft, Amazon, Google or SalesForce, and to rent their resources and deploy its services. These cloud service providers The second approach is to build a private cloud with some of the open source cloud frameworks like Eucalyptus, OpenStack, OpenNebula...
In this paper we analyze most common open source cloud architectures. We installed OpenStack, Eucalyptus, Open-Nebula, and CloudStack and evaluated the security aspects of their architecture and their compliance with security requirements defined by the ISO 27001:2005 standard which specifies the requirements for establishing, implementing, operating, monitoring, reviewing, maintaining and improving...
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