Design And Implementation Of Computer Monitoring System For LAN

Computer monitoring system for LAN is a management system for more efficiently managing all computers in local net. It is used to monitoring computers in local net by examining those computers' information with remote control technology. This system can help administrators of networks to know computers' status in local net in any time. It provides a reliable practical effective management pattern for computer managing system in local net. Using Client/Server Pattern, Computer monitoring system for LAN is composed of two parts: client monitoring software and server software. Client monitoring software is divided into five modules. Each module is designed to realize one function. The five functions are: recording net information, file modification information, process running information, Email information and CPU usage. Server software collects the five types of information from the clients which can be convenient to know and manage client computers in LAN for administrators. Network packets probe module and Sending/Receiving Email probe module of client monitoring software are based on TCP/IP and get the information through analyzing IP packet's head and TCP packet's head. File modification/creation probe module and Process execution probe module of client monitoring software are implemented with Windows hook technique. Server software is implemented to connect the clients and accept information with multi-threads technique. Server software UI is designed to show the information of client computers to administrators with diagram and list style. The system adopts comprehensively many technologies, such as net communication, object-oriented design and multi-threads design. It implements a computer monitoring system based on TCP/IP. The result of application shows that this system is steady reliable and realize anticipative object.