ssh登录提示The authenticity of host ‘192.168.68.xx (192.168.68.xx)’ can’t be established.
xshell命令行输入ssh 192.168.68.xx，提示：
The authenticity of host ‘192.168.68.xx (192.168.68.xx)’ can’t be established.
ECDSA key fingerprint is c8:16:22:4f:b1:72:4f:39:01:d8:47:82:40:10:ec:b2.
意思是：192.168.68.xx主机的可信度不能确定
Are you sure you want to continue connecting (yes/no)?
输入yes，提示;
Warning: Permanently added ‘192.168.68.13’ (ECDSA) to the list of known hosts.
接下来提示输入password：
输入密码既可登录。