ssh连接不上、Xshell意外关闭Socket error Event: 32 Error: 10053.

Xshell意外关闭可能会出现这种问题，如遇如下错误可解决：

Connecting to 47.106.80.28:22…

Connection established.

To escape to local shell, press ‘Ctrl+Alt+]’.

Socket error Event: 32 Error: 10053.

Connection closing…Socket close.

Connection closed by foreign host.

Disconnected from remote host(47.106.80.28) at 21:34:21.

Type `help’ to learn how to use Xshell prompt.

由于意外关闭，linux 中秘钥的权限会跟着更改，至于原因暂时未知，解决办法如下：

可通过网页控制台进入系统，服务器供应商都会提供对应的网页控制端，可登陆系统，网页登录不受影响。

执行如下代码：

//进入到ssh秘钥目录

cd /etc/ssh

//更改秘钥权限

chmod 400 ./*

重启sshd

sudo systemctl restart sshd

xshell再次连接，成功