C# send a simple SSH command

Question

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.

screenshot of ui

screenshot of code

I'm coding with Microsoft Vistual Studio.

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

It would also be amazing for us if you share what you have actually tried for that.... — Akash KC
– Akash KC, Commented Jun 23, 2012 at 12:18
Hi, thx for your fast answers JacobSeleznev Thanks for this website. But I just can't afford this product. @LolCoder For sure :D I've created a GUI Click Me Here a picture of the code (well^^) Click Me — lucbas
– lucbas, Commented Jun 23, 2012 at 12:42
@justinb138 Thanks for your solution. I've downloaded the library from the download page. Now a little question: How can I implement this library in my program? — lucbas
– lucbas, Commented Jun 23, 2012 at 13:11
@justinb138 I'm pretty sure he's not writing an ASP.NET web site based on the screenshot. — Dan Bechard
– Dan Bechard, Commented Dec 4, 2014 at 15:41

Karl-Johan Sjögren · Accepted Answer · 2016-12-13 11:14:14Z

123

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();
}

edited Dec 13, 2016 at 11:14

answered Oct 15, 2012 at 19:26

Karl-Johan Sjögren

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14 Comments

Frank Schwieterman Over a year ago

where did you find SSH.NET samples? Thanks

Karl-Johan Sjögren Over a year ago

It's available under Downnloads on their codeplex page as "SshNet Help": sshnet.codeplex.com/releases/view/120565. Not the most common way to supply documentation but it's there at least.

MethodMan Over a year ago

@Karl-JohanSjögren, I have downloaded the SSH.NET and if I want to call this particular Unix file anly_load_int.sh from .net.. what would the RunCommand look like..?

Karl-Johan Sjögren Over a year ago

Well depending on where on the target machine the file is located it should be something like sh /path/to/anly_load_int.sh.

Kent Kruckeberg Over a year ago

@Karl-JohanSjögren, thanks. For others, if you don't see content when viewing the .chm file, remember to rt click on it in your file manager and in properties tick the "unblock" checkbox.

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Adi Inbar · Accepted Answer · 2014-11-18 21:19:25Z

10

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

edited Nov 18, 2014 at 21:19

Adi Inbar

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answered Nov 18, 2014 at 20:54

Mario Palacios

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2 Comments

Dan Hastings Over a year ago

this worked for me as i needed to use a port that wasnt the default.

PRMan Over a year ago

You should actually put a using at the beginning of line 1. This keeps you from having to remember to Dispose on line 5 and will dispose even in the event of an error which prevents memory leaks.

NickD · Accepted Answer · 2012-06-23 13:03:48Z

3

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

answered Jun 23, 2012 at 13:03

NickD

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2 Comments

e-info128 Over a year ago

Dont support multiple connections :(

Max Over a year ago

Tamir SSH is deprecated. It uses old easy-hacking protocols. SSH.net is a newer and more secure solution.

Salah Akbari · Accepted Answer · 2021-06-17 08:13:52Z

2

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();
}

answered Jun 17, 2021 at 8:13

Salah Akbari

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Comments

Michael Santos · Accepted Answer · 2020-10-22 21:00:13Z

1

For .Net core i had many problems using SSH.net and also its deprecated. I tried a few other libraries, even for other programming languages. But i found a very good alternative. https://stackoverflow.com/a/64443701/8529170

answered Oct 22, 2020 at 21:00

Michael Santos

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