Research And Application Of Wi-Fi Network Text Packet Monitoring

With the rapid development of computer networks,mobile phones,laptops and other wireless Internet devices have become an indispensable tool in daily life.People use wireless networks to transmit data,read web pages,access information and so on.Therefore,wireless network security problem increasingly brought to the attention of the people,the people in the process of daily Internet browsing the web,text flows through the wi-fi network packet will contain many sensitive words,personal or corporate privacy,etc.,the network packet capture,parsing,reduction and text monitoring technology is the most fundamental method of network security maintenance,but it also led to the illegal personnel will use the same method to steal the privacy.Therefore,it is imperative to study the legitimacy of text data packets,and at the same time,it can prevent the network from being violated by illegal personnel,which is also the significance of this study.In order to achieve the research objectives,a series of studies and experiments are carried out in this paper,and the research steps are as follows:packet capture,packet analysis,packet storage,packet restoration,packet monitoring,etc.The main work includes:1)to capture the web text packets flowing through the wireless network,the main method is to cross-compile in the router,using the linux-based Libpcap toolkit for development.2)it mainly monitors the webpage text data packets flowing through the wireless network.In this work,we analyze and monitor the security of these packets by analyzing the packets captured in the router.It mainly carries out sensitive vocabulary detection and illegal website monitoring for text data packets flowing through the webpage,and carries out functional tests.For network security,the page packet monitoring function is good for sensitive to flow through the network or illegal information for effective real-time monitoring,and can take corresponding measures to blocking of illegal information,so as to guarantee the security of the users to browse the web,this study to provide research guidance to protect the safety of users daily surfing the Internet.