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In this paper, a system for PPPoE protocol analysis is designed and implemented. The system includes three modules: network capture module, traffic analysis module and information log module. The network packets are captured by Winpcap which can enhance high correctness and efficiency of the network capture. The mechanism of PPPoE data communication and the packet capture method of using Winpcap are...
The DoS attack is the most popular attack in the network security with the development of network and internet. In this paper, the DoS attack principle is discussed and some DoS attack methods are deeply analyzed. The DoS attack detection technologies which include network traffic detection and packet content detection are presented. The DDoS based on DoS is introduced and some DDoS tools are described...
This paper discusses the network security scanning and some scanning methods which contain port scanning, vulnerability scanning and remote operating system detection are studied. In order to reduce the complexity and get high performance, the architecture of a common network security scanning system based on Libnet and Libpcap is provided and the every module of system is designed and implemented...
In this paper, the remote operating system detection is discussed and some detection methods which contain active detection and passive detection are studied and compared. The implement of remote operating system detection based on Libnet is provided and the architecture of total system is presented. The principle of Libnet is studied and it can improve detection performance and scalability. The detection...
The architecture of network intrusion detection system based on network protocol analysis on Linux is provided. The design methods and realization technology of every module are discussed and implemented. The network intrusion detection theory and the IRDL (intrusion rules description language) based on the network protocol analysis is studied in detail.
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