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Signature from server's host key is invalid

hqy hqy 发表于2021-09-14 19:48:40 浏览2267 评论0

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When trying to connect to a 5720 switch using putty , i've got this error "Signature from server's host key is invalid".

I've used RSA algorithm in SSH option int the configuration pannel of the switch, but I always have the same error.


You need to put RSA in "Algorithm Selection Policy" at the top.

Like in the below example:

sol

方法1:更换为0.70版本的putty软件。


方法2:修改SSH中的主机密钥算法选择优先级,下面以0.74版本为例进行说明:

点击该提示的确定按钮后,再点击软件窗口左上角的菜单图标,在弹出的下拉选项中选择Change Settings…

然后在下图位置进行修改:选中RSA算法并点击Up按钮将其移动到最上方,并把Prefer algorithms for which a host key is known前面的勾取消,点击Apply按钮。

最后再点击软件窗口左上角的菜单图标,在弹出的下拉选项中选择Restart Session重新登录即可。


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