[dfdsafdsf@h3 ~]$ ssh h2
The authenticity of host 'h2 (192.168.217.12)' can't be established.
RSA key fingerprint is 04:84:9d:ba:e4:22:85:2b:7c:92:c9:21:6c:5d:d6:77.
Are you sure you want to continue connecting (yes/no)? yes -- 为什么还会有提示输入yes/no呢?如果这次输入后,第二次就不用输入,但可能重新登录虚拟机之后还会提示的,请问这是为什么呢?
Warning: Permanently added 'h2,192.168.217.12' (RSA) to the list of known hosts.
Last login: Mon Jun 29 07:36:45 2015 from h1