在两个IP地址之间进行C＃ping

Question

How can i check if two servers are connected from a third server in c#? I am in server A and i want to know if Server B and Server C are connected. I only have the code to check if I am connected to server B or C. What I have:

public bool AreConnected(string ip)
{
    bool connected= false;
    Ping p = new Ping();
    try
    {                
        PingReply reply = p.Send(ip);
        connected = reply.Status == IPStatus.Success;
    }
    catch (PingException)
    {
        // Discard PingExceptions and return false;
    }
    return connected;
}

Answer 1

This might not be the best approach, and it requires admin privileges on machine B, but it works.

Use PsExec . This tool allows you to run a command on a remote machine.

Create a command line program that take the ip address as a command line parameter, pings the ip address and outputs the result.

Then run PsExec (from C# code) to execute such program on machine B and collect the result (from code also).

You will need to use Process.Start to be able to execute the PsExec command from C# code.

Answer 2

I used PsExec and works fine, below my code maybe could help someone else,

public bool IsPingable(string servA, string servB)
    {
        string path = Path.GetDirectoryName(Path.GetDirectoryName(System.IO.Directory.GetCurrentDirectory())) + "\\Resources\\PsExec.exe";
        Process p = new Process();
        p.StartInfo.UseShellExecute = false;
        p.StartInfo.CreateNoWindow = true;
        p.StartInfo.FileName = path;
        p.StartInfo.Arguments = @"\\" + servA + " ping " + servB + " -n 1";
        p.StartInfo.RedirectStandardOutput = true;
        p.Start();
        string output = p.StandardOutput.ReadToEnd();
        if (!output.Contains("100% loss"))
        {
            return true;
        }
        else
        {
            return false;
        }
    }