eSAT Publishing House
Network Intrusion Detection Systems (NIDS), whose base is signature, works on the signature of attacks. They must be updated quickly in order to prevent the system from new attacks. The attacker finds out new evasion techniques so that they should remain undetected. As the new evasion techniques are being developed it becomes difficult for NIDS to give accurate results and NIDS may fail. The key aspect of the authors' paper is to develop a network intrusion detection system using C4.5 algorithm where Adaboost algorithm is used to classify the packet as normal packet or attack packet and also to further classify different types of attack.