Pattern Recognition for Intrusion Detection in Computer Networks

Description

Nowadays an increasing number of commercial and public services are offered through the Internet, so that security is becoming a key issue. The so-called ?attacks? on Internet service providers are carried out by exploiting both unknown weaknesses or bugs that are always contained in system and application software, and complex unforeseen interactions between software components and/or network protocols [1], [2]. The objective of computer attacks is to obtain unauthorized access to the information stored in computer systems and/or to cause a temporary unavailability of its services. The so-called ?first line? of defence against attacks is made up of a number of access restriction policies that act as a coarse grain filter. Intrusion detection systems (IDSs) are the fine grain filter placed inside the protected network, that look for known or potential threats in network traffic and/or in audit data recorded by hosts [2].

Additional details