C# send a simple SSH command

I'm a young a student and received my homework for this week. It's pretty difficult for me because I have to create a program, that is able to connect to an SSH server and send the command "etc/init.d/networking restart".

I should program this application in C# and I'm pretty new to it (Just have learned from some school lessons). I also should create a GUI.

I understand the basics of C# (loop, if etc...).

I've already created GUI, menus, buttons and a log listbox. GUI = 3 textboxes (ip, username, password) and a button to connect.

I'm coding with Microsoft Vistual Studio.

My question is: How can I establish an SSH connection to my server?

I used SSH.Net in a project a while ago and was very happy with it. It also comes with a good documentation with lots of samples on how to use it.

The original package website can be still found here, including the documentation (which currently isn't available on GitHub).

For your case the code would be something like this.

using (var client = new SshClient("hostnameOrIp", "username", "password"))
{
    client.Connect();
    client.RunCommand("etc/init.d/networking restart");
    client.Disconnect();
}

SshClient cSSH = new SshClient("192.168.10.144", 22, "root", "pacaritambo");
cSSH.Connect();
SshCommand x = cSSH.RunCommand("exec \"/var/lib/asterisk/bin/retrieve_conf\"");
cSSH.Disconnect();
cSSH.Dispose();

//using SSH.Net

SharpSSH should do the job. http://www.codeproject.com/Articles/11966/sharpSsh-A-Secure-Shell-SSH-library-for-NET

Late answer, but for me none of the solution worked unfortunately. Actually, If you need to execute multiple commands, and also the commands depend on each other (first command modified the environment, e.g. variables, that are used by the latter commands), you have to execute them within one channel. Use a shell syntax for that, like && or ;:

using (var client = new SshClient("hostnameOrIp", "username", "password"))
{
    client.Connect();

    using (var command = client.CreateCommand("command1 && command2"))
    {
        Console.Write(command.Execute()); //Don't forget to Execute the command
    }

    client.Disconnect();
}