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ABSTRACT
Remote Computer allows us to monitor computer activity from anywhere if we have Internet access. There are times, as a Windows network administrator, you would like to control certain aspects of machines sitting remotely. This enables you to view, practically in real-time, the activities that are happening on the client computer. You will see reports on such things as: What web pages they visit, who they talk to, what they say, and more. Various control such as access resources, file transfer, shut down the m/c, end certain processes and other are also possible.
The main objective of this project is to design two application softwares that work simultaneously on the Server and Client machines. The Server application runs in the hide mode on one machine that captures the screen of its own desktop and then sends the captured screen to the Client machine. The Client machine then control various events of Serve machine by using the screen displayed in its own window. Its network based application that supports TCP protocol of the network layers.
Network Programming between the two machines is achieved bye using the SOCKET class of the Visual C++ language using either MFC (Microsoft Foundation Classes) or using WINAPI (Windows applications) called Socket Programming. The same class in MFC is used as a CSocket class derived from CAsyncSocket class which in turn is derived from CDC class. VC++ provides great GUI as its window based application software.
Features of the software Application:
 Select a m/c over the LAN by providing IP Address and Administrator password
 Capture and control the screen of the client m/c
 Allows to access the resources of the client m/c
 Execute an application on client m/c
 End an application on client m/c
 Shut down or reboot the client m/c
 Allows file transfer
 Programmable Refresh Rate
 Save the captured screen
 Allows multiple client to be connected
If the machine is right now executing the Server Application the Client machine can connect it using its IP ADDRESS and Authorization process.
1.1 Introduction to the Remote Monitoring and Control
This project is divided into various activities that create small modules amongst Client and Server Application.
1.1.1 Server Functions:
(1) Create a Socket using WinSock 2 protocols, bind it to the port and IP address of the Server Machine and run the socket in the listening mode waiting for some other sockets to connect on that socket. (Socket Programming)
(2) Capture the screen at regular intervals according to the refresh ret in terms of the seconds and on request from client machines send the screen from server machine to the client machine. (Screen Capturing and Transfer)
(3) Handle various messages from client like keyboard, mouse and region related and execute various routines to handle that messages that will change the server machine processes remotely. (Events handling)
1.1.2 Client Functions:
(1) Authenticate the user who is going to handle the server machine remotely through the pair of User Name and Password (Authentication)
(2) Create a Client Socket using Winsock 2 protocols, establish appropriate server structure that includes sever port no, IP address etc and connect on that socket. (Socket Programming)
(3) Create a Timer that counts for the time when it’s required to have a screen from the server machine. (Screen Capturing Constraint)
(4) Compose various messages according to the screen request and various events that have been generated in the client window on the screen of the server window. (Event detection and Transfer messages to the server)
Hence from the above overview of the functions it’s clear that most essential part of the application is the socket programming that enables communication between the server and client machines and allows transfer of the information between them. The application provides great flexibilities in terms of the GUI part of the project so that it’s very easy to handle server machine from the client machine that creates the environment such that it seems that you are handling your own desktop.