Question

我正在尝试连接到 AIX 框并使用 SSH.NET 库执行一些命令。以下是代码snipplet

KeyboardInteractiveAuthenticationMethod kauth = new KeyboardInteractiveAuthenticationMethod(username);
PasswordAuthenticationMethod pauth = new PasswordAuthenticationMethod(username, password);

ConnectionInfo connectionInfo = new(ConnectionInfo(servername, 22, username, pauth,kauth);
SshClient sshClient = new SshClient(connectionInfo);
sshClient.Connect();
SshCommand sshCommand = sshClient.RunCommand("mpstat");
Console.WriteLine(sshCommand.Result);
Console.ReadKey();

当我尝试在sshClient.Connect()行

连接时，我收到以下异常消息

{＆＃34;值不能为空。\ r \ n参数名称：数据＆＃34;}

堆栈跟踪

   at Renci.SshNet.KeyboardInteractiveAuthenticationMethod.Authenticate(Session session)
   at Renci.SshNet.ConnectionInfo.Authenticate(Session session)
   at Renci.SshNet.Session.Connect()
   at Renci.SshNet.BaseClient.Connect()

我确信我传递的凭据有效，因为我能够使用具有相同凭据的 PuTTY 客户端登录。有什么想法吗？

Answer 1

经过一些研究，我找到了解决方案。希望它能帮助别人。

应使用键盘互动身份验证，并使用以下功能覆盖 AuthenticationPrompt 事件

void HandleKeyEvent(Object sender, AuthenticationPromptEventArgs e)
{
    foreach (AuthenticationPrompt prompt in e.Prompts)
    {
        if (prompt.Request.IndexOf("Password:", StringComparison.InvariantCultureIgnoreCase) != -1)
        {
            prompt.Response = password;
        }
    }
}

函数调用代码：

KeyboardInteractiveAuthenticationMethod kauth = new KeyboardInteractiveAuthenticationMethod(username);
PasswordAuthenticationMethod pauth = new PasswordAuthenticationMethod(username, password);

kauth.AuthenticationPrompt += new EventHandler<AuthenticationPromptEventArgs>(HandleKeyEvent);

ConnectionInfo connectionInfo = new ConnectionInfo(serverName, port, username, pauth, kauth);

sshClient = new SshClient(connectionInfo);
sshClient.Connect();

Answer 2

我已将所有内容封装起来，以便更易于使用。警告：尚未实现try / catch！这里有DLL：https://sshnet.codeplex.com/releases/view/120504 使用SLES（11.1 64），Debian（6），AIX（5.3,6.1,7）

进行测试

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 Renci.SshNet;
using Renci.SshNet.Common;

namespace SSH2
{
    public partial class Form1 : Form
    {
        public Form1()
        {
            InitializeComponent();

            SSH client = new SSH("servername", "username", "password");

            MessageBox.Show(client.command("ls -la /"));
        }

    }

    public class SSH
    {
        string servername;
        int port;
        string username;
        string password;

        SshClient Server = null;


        public SSH(string servername, int port, string username, string password)
        {
            this.servername = servername;
            this.port = port;
            this.username = username;
            this.password = password;

            this.init();
        }

        public SSH(string servername, string username, string password)
        {
            this.servername = servername;
            this.port = 22;
            this.username = username;
            this.password = password;

            this.init();
        }


        private void init()
        {
            KeyboardInteractiveAuthenticationMethod kauth = new KeyboardInteractiveAuthenticationMethod(this.username);
            PasswordAuthenticationMethod pauth = new PasswordAuthenticationMethod(this.username, this.password);

            kauth.AuthenticationPrompt += new EventHandler<AuthenticationPromptEventArgs>(HandleKeyEvent);

            this.Server = new SshClient(new ConnectionInfo(this.servername, this.port, this.username, pauth, kauth));
        }


        void HandleKeyEvent(Object sender, AuthenticationPromptEventArgs e)
        {
            foreach (AuthenticationPrompt prompt in e.Prompts)
            {
                if (prompt.Request.IndexOf("Password:", StringComparison.InvariantCultureIgnoreCase) != -1)
                {
                    prompt.Response = this.password;
                }
            }
        }

        public string command(string cmd)
        {
            this.Server.Connect();

            var output = this.Server.RunCommand(cmd);

            this.Server.Disconnect();

            return output.Result;
        }
    }
}

无法使用SSH.NET库连接到AIX（Unix）框 - 错误：值不能为空

2 个答案: