Design And Implementation Of The Remote Computer Monitoring System

Remote computer monitoring system is remotely monitored by remote computer when it is known and allowed.It is widely used in office,education and other fields,has a very good practical significance,at the same time it needs the comprehensive use of information transmission technology,network science,graphics and other technical means,has a good theoretical significance.This paper discusses and analyzes the background of remote computer monitoring system and its advantages in enterprise application,on the basis of the research on the related technology of remote computer monitoring system,based on the C/S model,uses the TCP/IP communication protocol,and uses the sock et network programming,the remote monitoring system is designed and implemented.The System is composed of controlled side and controlling side.The controlled side captures monitoring information,filters them according to the preset rules,and then uploads them to controlling side;The controlling side collects and displays invalid records,manages filtering rules.The monitor range is: screen,audio,URL access,file access,process startup and clipboard contents.The two-layer protocol structure is designed in the transmission layer,the DES algorithm guarantees data security,and the MD5 algorithm guarantees data integrity.The system uses three-layer architecture: the user interface layer is responsible for the display of information and user interaction,the business logic layer expresses domain concepts and business rules,and the data access layer provides the persistence mechanism.The remote screen real time monitoring module uses the controlled-end to capture the bitmap continuously,through the contrast algorithm only after the increment change partial compression transmits to the main control side to carry on the double buffering refreshes the way realizes,reduces the network load while enhances the transmission efficiency.The remote voice listening module is controlled by DirectSound technology to transmit the sound data to the main control side,it uses circular buffer to reduce system costs.It also implements web site browsing monitoring based on Hook technology,file access monitoring base d on ETW technology,program running monitoring based on WMI technology,and clipboard content monitoring.