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How can I take direct data form Ardruino server and upload to PC another ( installed SQL )

I wrote 2 winforms as follows
Check the connection of the Ardruino to PC 1 and write the received information to log.txt file
Read selected information in log files and send them to PC 2 (SQL installed)
Note: PC 1 has 2 network cards (network card 1 receives the signals of the Arduino over the range: 192.168.1.2; Network card 2 connects to PC 2 via the range: 110.110.1.2)
How do I get the information I need from PC 1 and transfer them to PC 2 (with SQL installed) with only 1 program
My code Winform received form Arduino:
using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
using System.Windows.Forms;
using System.IO;
using System.Threading;
using System.Net;
using System.Net.Sockets;
using System.Data.SqlClient;
namespace TCPIPSeverMutilClient
{
public partial class Form1 : Form
{
const int MAX_CONNECTION = 30;
const int PORT_NUMBER =1989;
int currentconnect = 0;
delegate void SetTextCallback(string text);
static TcpListener listener;
public Form1()
{
InitializeComponent();
}
private void button1_Click(object sender, EventArgs e)
{
IPAddress address = IPAddress.Parse(IPText.Text);
listener = new TcpListener(address, PORT_NUMBER);
AddMsg("Creat Sever with IP :"+ IPText.Text);
AddMsg("Waiting for connection...");
button1.Hide();
listener.Start();
for (int i = 0; i < MAX_CONNECTION; i++)
{
// new Thread(DoWork).Start();
Thread aThread = new Thread(DoWork);
aThread.IsBackground = true; //<-- Set the thread to work in background
aThread.Start();
}
}
private void DoWork()
{
while (true)
{
Socket soc = listener.AcceptSocket();
currentconnect = currentconnect + 1;
SetText("Numbers Connection " + currentconnect.ToString());
Console.WriteLine("Connection received from: {0}", soc.RemoteEndPoint);
try
{
var stream = new NetworkStream(soc);
var reader = new StreamReader(stream);
var writer = new StreamWriter(stream);
writer.AutoFlush = true;
//writer.WriteLine("Welcome to Student TCP Server");
// writer.WriteLine("Please enter the student id");
while (true)
{
string id = reader.ReadLine();
SetText(id);
// writer.WriteLine("END");
if (String.IsNullOrEmpty(id))
break; // disconnect
//if (_data.ContainsKey(id))
// writer.WriteLine("Student's name: '{0}'", _data[id]);
else
{
writer.WriteLine("END");
// writer.WriteLine("Can't find name for student id '{0}'", id);
}
}
stream.Close();
}
catch (Exception ex)
{
SetText("Error: " + ex);
}
// Console.WriteLine("Client disconnected: {0}",soc.RemoteEndPoint);
soc.Close();
currentconnect = currentconnect - 1;
SetText("Numbers Connection " + currentconnect.ToString());
}
}
private void SetText(string text)
{
if (this.rtbText.InvokeRequired)
{
SetTextCallback d = new SetTextCallback(SetText); // khởi tạo 1 delegate mới gọi đến SetText
this.Invoke(d, new object[] { text });
}
else
{
this.AddMsg(text);
}
}
private void SaveText(string text)
{
const string textFileName = "Log.txt";
const int insertAtLineNumber = 0;
List<string> fileContent = File.ReadAllLines(textFileName).ToList();
// AddMsg(fileContent.Count.ToString());
//fileContent.InsertRange(insertAtLineNumber, text);
fileContent.Insert(insertAtLineNumber, text);
File.WriteAllLines(textFileName, fileContent);
}
private void AddMsg(string msg)
{
rtbText.Items.Add(DateTime.Now + " : " + msg);
SaveText(DateTime.Now + " : " + msg);
if (rtbText.Items.Count >= 150)
{ rtbText.Items.RemoveAt(0); }
}
}
}

As the Arduino card attached to PC 1 cannot be accessed from the PC 2.
You need to pass the Arduino data to the MSSQL Database. Then Retrieve the data in PC 2 by accessing it from PC 1. You can use this Reference for How to access Database over network

Up to now, when I returned this case I had a solution.
In PC1, there are 2 network cards, you just need to use the Network class to find the IP with the IP with IP in PC2
Instead of reading from the log file I was inspired directly from Arduino returned and transmitted to PC2
string hostname = Dns.GetHostName();
System.Net.IPHostEntry ip = new IPHostEntry();
ip = Dns.GetHostByName(hostname);
foreach (IPAddress listip in ip.AddressList)
{
if (listip.ToString().StartsWith("110."))
{
ipMay = listip.ToString();
macPairIp = GetMacByIP(ipMay);
try
{
//Do work here
}
catch (...)
{}
}
}

Display complete SSH shell output including login message and prompt in C#

I'm trying to create a simple SSH client in C#. This is my code now:
using Renci.SshNet;
public static void Main(string[] args)
{
AuthenticationMethod method = new PasswordAuthenticationMethod("pi", "raspberry");
ConnectionInfo connection = new ConnectionInfo("192.168.91.134", "pi", method);
SshClient client = new SshClient(connection);
if (!client.IsConnected)
{
Console.WriteLine("Not Connected...");
client.Connect();
}
while (true)
{
string command = Console.ReadLine();
SshCommand response = client.RunCommand(command);
Console.WriteLine(response.Result);
}
}
Problem:
like this, it shows just the response of the command sent. I would like the entire output, also with the user and the current directory (like a classic SSH shell).
if I want to launch the sudo su command giving the password it doesn't work...
(in the future I want to add the output to a listbox and take the input from a texbox in a winForms app)
Thank you in advance for your help

This is my implementation:
using System;
using System.Threading;
using Renci.SshNet;
public class Program
{
public static void Main(string[] args)
{
SshClient sshClient = new SshClient("192.168.91.134", 22, "pi", "raspberry");
sshClient.ConnectionInfo.Timeout = TimeSpan.FromSeconds(120);
sshClient.Connect();
ShellStream shellStreamSSH = sshClient.CreateShellStream("vt-100", 80, 60, 800, 600, 65536);
Thread thread = new Thread(() => recvSSHData(shellStreamSSH));
thread.Start();
while (true)
{
string command = Console.ReadLine();
shellStreamSSH.Write(command + "\n");
shellStreamSSH.Flush();
}
}
public static void recvSSHData(ShellStream shellStreamSSH)
{
while (true)
{
try
{
if (shellStreamSSH != null && shellStreamSSH.DataAvailable)
{
string strData = shellStreamSSH.Read();
Console.WriteLine(strData);
}
}
catch
{
}
System.Threading.Thread.Sleep(200);
}
}
}

In you want to implement an SSH terminal client (like PuTTY), you need to use SSH "shell" channel.
In SSH.NET, use SshClient.CreateShell or SshClient.CreateShellStream, not SshClient.RunCommand.

Displaying Output from SSH.NET

I am fairly new with C# and I am trying to write an SSH console application using the SSH.NET framework. So far I was able to connect to my server successfully, but now I am trying to run commands and have it display the result. Yet, my console comes out blank when I run my application. My end goal was to execute a set of commands and see the results at the end of it.
Program.cs
using Renci.SshNet;
class Program
{
//Login Parameter
const String Hostname = "somePort";
const int PortNumber = 22;
const String Username = "username";
const String Password = "root";
static void Main(string[] args)
{
//Bypass Keyboard authentication
KeyboardInteractiveAuthenticationMethod kauth = new KeyboardInteractiveAuthenticationMethod(Username);
PasswordAuthenticationMethod pauth = new PasswordAuthenticationMethod(Username, Password);
kauth.AuthenticationPrompt += new EventHandler<Renci.SshNet.Common.AuthenticationPromptEventArgs>(HandleKeyEvent);
//Grab info for connections
ConnectionInfo connectionInfo = new ConnectionInfo(Hostname, PortNumber, Username, pauth, kauth);
//Connect
using (SshClient client = new SshClient(connectionInfo))
{
try
{
//Connect to server
client.Connect();
Console.WriteLine("Connection successful");
var command = client.CreateCommand("ls");
var result = command.Execute();
command.Execute();
Console.WriteLine(result);
//Disconnect from server
client.Disconnect();
}
//Show exp message
catch (Exception exp)
{
throw exp;
}
}
}
//Handle two step auth
static void HandleKeyEvent(Object sender, Renci.SshNet.Common.AuthenticationPromptEventArgs e)
{
foreach (Renci.SshNet.Common.AuthenticationPrompt prompt in e.Prompts)
{
if (prompt.Request.IndexOf("Password:", StringComparison.InvariantCultureIgnoreCase) != -1)
{
prompt.Response = Password;
}
}
}
}

I don't know if you have resolved this issue yet, but the solution is simple in this case.
The function:
command.Execute()
doesn't return your result.
You have to execute like you did, but then grab the result via
command.Result
It would look something like this:
var command = client.CreateCommand("ls");
command.Execute();
var result = command.Result;
Hope i could help you.

Disconnect clients on server exit

Here's the server code I am using:
using System;
using Microsoft.AspNet.SignalR;
using Microsoft.AspNet.SignalR.Hubs;
using Microsoft.Owin.Hosting;
using Owin;
using Microsoft.Owin.Cors;
using System.Collections.Generic;
namespace flar3server
{
class Program
{
static void Main(string[] args)
{
string url = "http://localhost:8080/";
using (WebApp.Start(url))
{
Console.WriteLine("Server running on {0}", url);
Console.ReadLine();
}
}
[HubName("flar3hub")]
public class flare3hub : Hub
{
static Dictionary<string, ChatConnection> connections = new Dictionary<string, ChatConnection>();
Dictionary<string, string> registeredUsers = new Dictionary<string, string>()
{
{ "test1", "pass1" },
{ "test2", "pass2" },
};
/*
public string Send(string message)
{
return message;
}
*/
public void Authenticate(string login, string password)
{
Console.WriteLine("Login [" + Context.ConnectionId + "] " + login + ":" + password);
foreach (ChatConnection connection in connections.Values)
{
if (connection.getLogin() == login)
{
Clients.Caller.Action("ERROR: User already logged in.");
return;
}
}
if (!registeredUsers.ContainsKey(login) || registeredUsers[login] != password)
{
Clients.Caller.Action("ERROR: Login attempt failed.");
return;
}
connections[Context.ConnectionId] = new ChatConnection(login);
Clients.Caller.Action("Logged in successfully");
Clients.All.Action(login + " joined the channel.");
}
public void Broadcast(string message)
{
try
{
Clients.All.sendMessage(connections[Context.ConnectionId].getLogin(), message);
}
catch (KeyNotFoundException)
{
Console.WriteLine("Unpaired [" + Context.ConnectionId + "] " + message);
}
}
}
}
}
And here's the client code:
using System;
using Microsoft.AspNet.SignalR;
using Microsoft.AspNet.SignalR.Hubs;
using Microsoft.AspNet.SignalR.Client;
namespace flar3client_cli
{
internal class flar3client_cli
{
private static void onDisconnected()
{
Console.WriteLine("Remote server closed the connection. Press enter to close the application.");
Console.ReadLine();
System.Environment.Exit(1);
}
private static void Main(string[] args)
{
//Set connection
var connection = new HubConnection("http://localhost:8080/");
//Make proxy to hub based on hub name on server
var myHub = connection.CreateHubProxy("flar3hub");
//Start connection
connection.Start().ContinueWith(task =>
{
if (task.IsFaulted)
{
Console.WriteLine("There was an error opening the connection:{0}",
task.Exception.GetBaseException());
Console.WriteLine("Press enter to continue...");
Console.ReadLine();
connection.Stop();
System.Environment.Exit(1);
}
else
{
Console.WriteLine("Connected");
}
}).Wait();
connection.Closed += onDisconnected;
myHub.On<string>("Action", param =>
{
Console.WriteLine(param);
});
myHub.On<string>("SendMessage", param =>
{
Console.WriteLine(param);
});
myHub.Invoke<string>("Authenticate", "test1", "pass1").Wait();
while (true)
{
myHub.Invoke<string>("Broadcast", Console.ReadLine()).Wait();
}
How can I make the server disconnect all clients when its application window is closed so that the clients can find that out?

How can I make the server disconnect all clients when its application window is closed so that the clients can find that out?
With your code, clients will find out server is gone but only after disconnect timeout which is the time client is trying to reestablish connection until give up.
You can change timeout value if needed but it is probably better to send "hey, server is going down" message to all clients instead...

First of all, I disabled the x button of the winform. Then I added a start button on the winform to start the signalr server. I also added a stop button, when this stop button is click, I called clients.all.somefunction to tell all the clients that the Server is going to be closed, well this process may takes a few seconds, and I start a timer in the server, say 10 seconds, after 10 seconds, I close the winform! that's how I did it.
but Actually I don't know how to do it with a console server.

Reverse SSH Port Forwarding in C#

I came across this article when trying to put together a reverse SSH solution in visual studio C#:
.NET SSH Port Forwarding
Using his code works up until the point where I actually start the port (port.Start()), then it throws an exception. Doing a reverse tunnel with PuTTY works just fine, so I believe the server is set up correctly. Am I doing something wrong in regards to implementing this SSH.NET library?
using Renci.SshNet;
using Renci.SshNet.Messages;
using Renci.SshNet.Common;
using System;
using System.Net;
using System.Threading;
namespace rSSHTunnelerSSHNET
{
public class Program
{
public static void Main(String[] arg)
{
String Host = "testserver.remote";
String Username = "testuser";
String Password = "password";
using (var client = new SshClient(Host, Username, Password))
{
client.Connect();
if (client.IsConnected)
{
Console.WriteLine("connected");
var port = new ForwardedPortRemote("targetserver.local", 80, "testserver.remote", 8080);
client.AddForwardedPort(port);
port.Exception += delegate(object sender, ExceptionEventArgs e)
{
Console.WriteLine(e.Exception.ToString());
};
port.Start();
}
else
{
Console.WriteLine("failed to connect.");
Console.ReadLine();
}
}
}
}
}