Research and Implementation of Multi-Thread Port Scanning Technology

The port scanning is one of the important network security scanning technologies and the foundation of network security detection. Detecting the port scan and finding potential aggressive behavior can help effectively intrusion detection system complete the task of early warning, interception and obtaining evidence, etc. With the enhanced processing capacity of operating system and computer, multi-thread technology has been more and more applied to application programming. After introducing briefly scanning technology and multi-thread technology, this paper gives the implementation of TCP port scanning by using Microsoft Visual C++ MFC library. The program enhances scanning efficiency through multi-thread and ping technology. The results of the program are satisfactory.