Use TcpListener to create a Tcp server : TcpListener : Network C# Examples

    
using  System;
using  System.IO;
using  System.Net;
using  System.Net.Sockets;

class  MainClass
{
        public  static  void  Main()  
        {
                TcpListener  listener  =  new  TcpListener(IPAddress.Parse("127.0.0.1"),  8000);
                Console.WriteLine("About  to  initialize  port.");
                listener.Start();
                Console.WriteLine("Listening  for  a  connection...");
                        
                try  
                {
                        using  (TcpClient  client  =  listener.AcceptTcpClient())
                        {
                                Console.WriteLine("Connection  accepted.");

                                NetworkStream  stream  =  client.GetStream();

                                using  (BinaryWriter  w  =  new  BinaryWriter(stream))
                                {
                                }
                                using  (BinaryReader  r  =  new  BinaryReader(stream))
                                {
                                }
                        }
                }  
                catch  (Exception  ex)  
                {
                        Console.WriteLine(ex.ToString());
                }
                finally
                {
                        listener.Stop();
                        Console.WriteLine("Listener  stopped.");
                }
      }
}