Linux服务器套接字到Windows客户端套接字

Question

Hi im writing a code that will connect a windows client to a linux server socket. I can already established a connection but it seems like the linux server are always cutting my connection after a few seconds without sending me back the response i needed. Also i already tried using telnet but again after a few seconds the linux server cut my connection.

Is there a problem connecting to a linux server socket using windows socket?

            IPEndPoint remoteEP = new IPEndPoint(IPAddress.Parse("IPADDRESS"), 6004);
            // Create a TCP/IP  socket.
            Socket sender = new Socket(AddressFamily.InterNetwork, SocketType.Stream, ProtocolType.Tcp);

            // Connect the socket to the remote endpoint. Catch any errors.
            try
            {
                if (!sender.Connected)
                    sender.Connect(remoteEP);

                string data = new Client().Test();

                DE_ISO8583 de = new ISO8583().Parse(data);

                data = data.Length.ToString().PadLeft(4, '0') + data;
                byte[] msg = Encoding.ASCII.GetBytes(data);

                int bytesSent = sender.Send(msg);

                //// Receive the response from the remote device.
                int bytesRec = sender.Receive(bytes);
                Console.WriteLine("Received = {0}",
                    Encoding.ASCII.GetString(bytes, 0, bytesRec));

                //sender.Disconnect(true);

                //sender.Shutdown(SocketShutdown.Both);
                //sender.Close();
            }
            catch (ArgumentNullException ane)
            {
                Console.WriteLine("ArgumentNullException : {0}", ane.ToString());
            }
            catch (SocketException se)
            {
                Console.WriteLine("SocketException : {0}", se.ToString());
            }
            catch (Exception e)
            {
                Console.WriteLine("Unexpected exception : {0}", e.ToString());
            }

Answer 1

The server may be closing the connection due to no activity. Enabling the keepalive option will send an empty datagram to the server periodically to keep the connection alive. See code below

  TcpClient client = new TcpClient(); client.Client.SetSocketOption(SocketOptionLevel.Tcp, SocketOptionName.KeepAlive, true);​