ganymed组件ssh连接openssh高版本报错

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已于 2023-03-09 11:23:30 修改 · 1.7k 阅读

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#ssh

于 2023-03-07 18:05:24 首次发布

文章讲述了在Java使用SSH2库连接到OpenSSH服务器时遇到的IOException，由于OpenSSH版本较高，默认禁用了不安全的Diffie-Hellman算法。为了解决这个问题，建议在服务器的sshd_config中添加支持旧算法的配置项，并重启sshd服务，作为临时解决方案。

java.io.IOException: There was a problem while connecting to ip:端口2
        at ch.ethz.ssh2.Connection.connect(Connection.java:699)
        at ch.ethz.ssh2.Connection.connect(Connection.java:490)
        at java.util.concurrent.FutureTask.run(FutureTask.java:266)
        at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142)
        at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617)
        at java.lang.Thread.run(Thread.java:745)
Caused by: java.io.IOException: Key exchange was not finished, connection is closed.
        at ch.ethz.ssh2.transport.KexManager.getOrWaitForConnectionInfo(KexManager.java:91)
        at ch.ethz.ssh2.transport.TransportManager.getConnectionInfo(TransportManager.java:229)
        at ch.ethz.ssh2.Connection.connect(Connection.java:655)
        ... 13 more
Caused by: java.io.IOException: Cannot negotiate, propo