com.jcraft.jsch.JSchException：UnknownHostKey [英] com.jcraft.jsch.JSchException: UnknownHostKey

问题描述

我正在尝试使用 Jsch 在Java中建立SSH连接。我的代码产生以下异常：

I'm trying to use Jsch to establish an SSH connection in Java. My code produces the following exception:

com.jcraft.jsch.JSchException: UnknownHostKey: mywebsite.com. 
RSA key fingerprint is 22:fb:ee:fe:18:cd:aa:9a:9c:78:89:9f:b4:78:75:b4

我找不到如何在Jsch文档中验证主机密钥。我在下面提供了我的代码。

I cannot find how to verify the host key in the Jsch documentation. I have included my code below.

import com.jcraft.jsch.JSch;
import com.jcraft.jsch.Session;

public class ssh {
    public static void main(String[] arg) {

        try {
            JSch jsch = new JSch();

            //create SSH connection
            String host = "mywebsite.com";
            String user = "username";
            String password = "123456";

            Session session = jsch.getSession(user, host, 22);
            session.setPassword(password);
            session.connect();

        } catch(Exception e) {
            System.out.println(e);
        } 
    }
}

推荐答案

我要么：

1. 从命令行尝试 ssh 并接受公钥（主机将被添加到〜/ .ssh / known_hosts ，然后一切都可以从Jsch正常工作） -OR -



2. 使用以下代码将JSch配置为不使用StrictHostKeyChecking（这会引入不安全因素并且仅用于测试目的）：

1. Try to ssh from the command line and accept the public key (the host will be added to ~/.ssh/known_hosts and everything should then work fine from Jsch) -OR-

2. Configure JSch to not use "StrictHostKeyChecking" (this introduces insecurities and should only be used for testing purposes), using the following code:

java.util.Properties config = new java.util.Properties(); 
config.put("StrictHostKeyChecking", "no");
session.setConfig(config);

选项＃1（将主机添加到〜/ .ssh / known_hosts file）有我的偏好。

Option #1 (adding the host to the ~/.ssh/known_hosts file) has my preference.

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