Security Monitoring System Of Accessing Wireless Network

In recent years, with the development of Internet and rapid increase of information transmission, big data as the main characteristics of network structure is becoming more and more highlighted. At the same time, the network is a double-edged sword, it is convenient in our daily work, enriches our life and also facilitates the hackers. Hackers can not only use sniffing attacks to steal account information of others, but also can obtain sensitive information about others through the erection of a Wifi hot spot for fishing. Therefore, how to quickly judge and excavated abnormal flow of the wireless network is particularly important.In order to protect the user’s security of the wireless network environment, this paper presents a Wifi network security monitoring system environment. First of all, we can guarantee access security of users through the VPN cluster. Then, by adding a security gateway between the user and Wifi, we can ensure the safety of users through the traffic detection. Combine with the method of worm feature matching and the global kmeans algorithm based on PSO, we can detect the most of attacks from the Wifi environment effiectively.