Server:

#include "ServerSocket.h"
#include "SocketException.h"
#include <string>
#include <iostream>

int main ( int argc, int argv[] )
{
  std::cout << "running....\n";
  int child[10];
  int i;
  i = 0;


  try
    {
      // Create the socket
      ServerSocket server ( 30000 );

      while ( true )
        {

          ServerSocket new_sock;
          server.accept ( new_sock );
          child[i] = fork();
if( child[i] == 0 )
{

          try
            {
              while ( true )
                {
                  new_sock  << "te Verbindung";
                  sleep(5);
                }
            }
          catch ( SocketException& ) {}
}
else if(child[i] == -1)
 {
//std::cout << "Fehler in Verbindung" << i << "\n";
 }
else
{
std::cout << i <<"te Verbindung aufgebaut\n";
i=i+1;
}


        }
    }
  catch ( SocketException& e )
    {
      std::cout << "Exception was caught:" << e.description() << "\nExiting.\n";
    }

  return 0;
}
-------------------------

Client:

#include "ClientSocket.h"
#include "SocketException.h"
#include <iostream>
#include <string>

int main ( int argc, int argv[] )
{
  try
    {

      ClientSocket client_socket ( "localhost", 30000 );

      std::string reply;
     while(1)
        {
          try
          {
            client_socket >> reply;
          }
      catch ( SocketException& ) {}

      std::cout << reply << "\n";;
        }
    }
  catch ( SocketException& e )
    {
      std::cout << "Exception was caught:" << e.description() << "\n";
    }

  return 0;
}