By Zhenwei Yu

This crucial ebook introduces the idea that of intrusion detection, discusses numerous techniques for intrusion detection structures (Ids), and offers the structure and implementation of Ids. It emphasizes at the prediction and studying algorithms for intrusion detection and highlights options for intrusion detection of stressed out laptop networks and instant sensor networks. The functionality comparability of varied Ids through simulation may also be incorporated.

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Additional resources for Intrusion Detection: A Machine Learning Approach

Example text

1. Background Security concerns are becoming increasingly important in modern computer systems. With the development of networking and interoperation on public networks, security threats grow quickly. Fig. 1 shows the statistics of reported vulnerabilities [1] by Computer Emergency Response Team (CERT) at Carnegie Mellon University. In 2006, the number of reported vulnerability was 8,064 and in average, vulnerability was reported almost every hour. Security threats come from different parts, mainly from the flaw or bug in hardware or software, and incorrect configurations or operations of the system.

It permits management to specify what users can do, which resources they can access, and what operations they can perform. This technique is also known as “authorization”. It is quite essential in software system security, as it grounds for higher-level security objectives such as confidentiality and integrity. Appropriate access control may prevent a software system from certain attacks, such as unauthorized access attacks. Since access control is the process of determining whether an identity (plus a set of attributes associated with that identity) is permitted to perform some action like accessing a resource; access control usually requires authentication as a prerequisite.

Intrusion tolerant system is such a system, which tries to provide continued core services to critical users while under attack with a goal of some degradation of productivity. Detect intrusion on a complex computer system is a hard problem. It is more difficult to discover what has been done exactly by an intruder on the computer system. Reinstall a fresh operation system is a good choice to get the security confidence of the computer system. However, it is a time consuming procedure to reinstall an operation system and recover all data.

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