Résumé:
Cloud Computing emerge as new IT paradigm, which aims to
provide applications delivered as services over the Internet and
the hardware and systems software in the data centers that
provide those services, by sharing resources to achieve
coherence and economies of scale . However, one of the most
important occupations of cloud computing today is to ensure the
security of the infrastructure. This paper brings an introduction
to the virtualization in a cloud environment. In the first place we
will describe the principle of operation of a virtual network in
the platform Xen, then we will discuss some possible attacks on
these networks. In the end, we will introduce an analysis of some
models of IDS applied to the cloud computing.