Hello. I have simple question about tcp protocol. I have server that is recieving data from multiple clients. I'm using C#. Each client is a seperate thread. How can I accept data from mulpiple clients, and keep them alive for recieving more data. Is this the general idea or not? : while(true) { NetworkStream ns = client.GetStream(); ... ns.Read ... ns.Write ... ns.Close ... }

You generally shouldn't keep a thread open for each TCP connection. That can get pretty nasty. Additionally, putting a tight While loop in there will surely increase process overhead.

Check out this article

The base for the code is clean, and uses Asynch Callbacks when data is received.