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最新推荐文章于 2025-12-04 16:52:46 发布

原创最新推荐文章于 2025-12-04 16:52:46 发布 · 129 阅读

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#服务器 #linux #ssh

当尝试SSH连接远程主机时，如果服务器重装系统导致Hostkey改变，会出现连接失败的错误。解决这个问题可以使用ssh-keygen-R命令删除旧的主机键，然后建立新的连接。这样能允许你用更新后的Hostkey正常SSH登录远程服务器。

服务器重装系统后，再次连接报错：

报错：

```powershell
Host key  has changed and you have requested strict checking. 
Host key verification failed.

This error typically occurs when you try to SSH into a remote host, and the host key on the remote server has changed since the last time you connected to it. You can resolve this issue by using the following command:

解决方法：

ssh-keygen -R <hostname or IP address>

This command removes the old host key associated with the remote server and allows you to establish a new connection with the updated host key. You can then SSH into the remote server as usual.