Could not connect to ‘192.168.3.10‘ (port 22): Connection failed.

Could not connect to ‘192.168.3.10‘ (port 22): Connection failed.

xshell 突然连接不上虚拟机了，估计是异常退出虚拟机导致的

Connecting to 192.168.3.10:22...
Could not connect to '192.168.3.10' (port 22): Connection failed.

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

查看sshd服务状态：systemctl status sshd

systemctl enable命令=激活开机启动

启动sshd服务：systemctl status sshd
依然失败
启动sshd调试模式：/usr/sbin/sshd -d
报错：

/var/empty/sshd must be ...

执行赋权 *** 作：

chmod 744 /var/empty/sshd

再次启动调试模式不再报错，重启sshd 服务：

systemctl restart sshd

结果