A collaborative framework for intrusion detection (C-NIDS) in Cloud computing
In recent years, Cloud computing has emerged as a new paradigm for delivering highly scalable and on-demand shared pool IT resources such as networks, servers, storage, applications and services through internet. It enables IT managers to provision services to users faster and in a cost-effective way. As a result, this technology is used by an increasing number of end users. On the other hand, existing security deficiencies and vulnerabilities of underlying technologies can leave an open door for intruders. Indeed, one of the major security issues in Cloud is to protect against distributed attacks and other malicious activities on the network that can affect confidentiality, availability and integrity of Cloud resources. In order to solve these problems, we propose a Collaborative Network Intrusion Detection System (C-NIDS) to detect network attacks in Cloud by monitoring network traffic, while offering high accuracy by addressing newer challenges, namely, intrusion detection in virtual network, monitoring high traffic, scalability and resistance capability. In our NIDS framework, we use Snort as a signature based detection to detect known attacks, while for detecting network anomaly, we use Support Vector Machine (SVM). Moreover, in this framework, the NIDS sensors deployed in Cloud operate in collaborative way to oppose the coordinated attacks against cloud infrastructure and knowledge base remains up-to-date.
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Institute of Computing, International Journal of Communication Networks and Information Security (IJCNIS) ISSN: 2073-607X (Online)