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Displaying  Source Code(s)  
 

 
Server Client project to get PC health of remote sever (Mini Project)

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Description : I have created a socket4444 on a PC which I treat as a server. Now using my PC I am firing all system and DOS commands on the server and getting response of same on my PC.

// To be run at server side and will act as a server
// MainServer.java

import java.net.*;
import java.io.*;

public class MainServer {
public static void main(String[] args) throws IOException {

ServerSocket serverSocket = null;
try {
serverSocket = new ServerSocket(4445);
} catch (IOException e) {
System.err.println("Could not listen on port: 4445.");
System.exit(1);
}

Socket clientSocket = null;
try {
clientSocket = serverSocket.accept();
} catch (IOException e) {
System.err.println("Accept failed.");
System.exit(1);
}

PrintWriter out = new PrintWriter(clientSocket.getOutputStream(),true);
BufferedReader in = new BufferedReader(
new InputStreamReader(
clientSocket.getInputStream()));
String inputLine, outputLine;
MainProtocol kkp = new MainProtocol();

// outputLine = kkp.processInput(null);
// out.println(outputLine);

while ((inputLine = in.readLine()) != null) {
if (inputLine.equals("bye"))
break;
outputLine = kkp.processInput(inputLine);
out.println(outputLine);
outputLine = null;

}
out.close();
in.close();
clientSocket.close();
serverSocket.close();
}
}


// Server side component used to execute commands and returning result
// MainProtocol.java


import java.lang.*;
import java.io.*;
public class MainProtocol {
String sa,sb;
// String sb,sa;

public String processInput(String args) {
try {
sb = new String();
sa = new String();
Runtime rt=Runtime.getRuntime();
Process p=rt.exec("cmd /c "+ args);
InputStream is = p.getInputStream();
BufferedReader br = new BufferedReader(new InputStreamReader(is));
while ((sb = br.readLine()) != null)
{
sa += sb ;
// sa +="<BR>;
}

p.waitFor();
System.out.println("process "+p.exitValue());
} catch(Exception e) {
System.out.println(e.getMessage()+ "sumit");
}

return sa ;
}
}




// Client side component. Commands are to fired from here only
// MainClient.java

import java.io.*;
import java.net.*;

public class MainClient {

public static void main(String[] args) throws IOException {

Socket kkSocket = null;
PrintWriter out = null;
BufferedReader in = null;
try {
kkSocket = new Socket("10.37.32.74", 4445);
out = new PrintWriter(kkSocket.getOutputStream(), true);
in = new BufferedReader(new
InputStreamReader(kkSocket.getInputStream()));
} catch (UnknownHostException e) {
System.err.println("Exception " + e);
System.exit(1);
} catch (IOException e) {
System.err.println("Couldn't get I/O for the connection.");
System.exit(1);
}

BufferedReader stdIn = new BufferedReader(new
InputStreamReader(System.in));
String fromServer;
String fromUser;

while ((fromUser = stdIn.readLine()) != "hi") {
// System.out.println("Server: " + fromServer);
// if (fromServer.equals("Bye."))
// break;

// fromUser = stdIn.readLine();

if (fromUser != null) {
// System.out.println("Client: " + fromUser);
out.println(fromUser);
fromServer = in.readLine();
System.out.println("Server Response: "+ fromServer);
fromServer = null;
if (fromUser.equals("bye"))
break;
}
}

out.close();
in.close();
stdIn.close();
kkSocket.close();
}
}

 

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