using System.Net;
using System.Net.Socket;
using System.IO;

Int32 port = 23;

try
{
	TCPListener server = new TCPListener(IPAddress.Any, port); 
	server.Start();

	Socket socket = server.AcceptSocket();

	while(true)
	{
		Byte[] stream = new Byte[1024];
		socket.Receive(stream);
		string msg = System.Text.Encoding.ASCII.GetString(stream);
		Console.WriteLine(msg);
	}
}
catch(Exception exception)
{
	Console.WriteLine(exception.Message);
}