private static void ReceiveCallback(IAsyncResult AR)
        {
            Socket socket = (Socket)AR.AsyncState;
            try
            {
                int received = socket.EndReceive(AR);

                byte[] dataBuf = new byte[received];
                Array.Copy(_buffer, dataBuf, received);

                string text = Encoding.ASCII.GetString(dataBuf);
                Console.Write("Gauta: " + text);

                string response = string.Empty;

                if (text.ToLower() != "time")
                {
                    response = "Neteisinga uzklausa";
                }
                else
                {
                    response = DateTime.Now.ToLongTimeString();

                }

                byte[] data = Encoding.ASCII.GetBytes(response);
                socket.BeginSend(data, 0, data.Length, SocketFlags.None, new AsyncCallback(SendCallback), socket);
            }
            catch (Exception)
            {
                //string _clientIP = socket.RemoteEndPoint.ToString();
                //Console.WriteLine("Client Disconnected [" + _clientIP + " ]");
            }
        }