Hi i like your post. it's awesome. But i need one more help, with the help of your classes and code, i am able to setup multiple clients connection to my server, and i am saving all clients IP address and PORT in which communication is happening, now i want to send some message to specific client using there IP and PORT, so is there any way to do that, so that i can directly select any client IP and PORT which i have saved in db, and can send some required message to client form server side.