使用ssh登录远程机器出现key问题
出现 Host key not found from database
错误提示详细信息：
sh-3.1$ ssh 10.101.101.101
Host key not found from database.
Key fingerprint:
...
warning: tcsetattr failed in ssh_rl_set_tty_modes_for_fd: fd 1: Interrupted system call
解决办法：请使用 "ssh –q [IP]"方式登录。
原文：
http://wiki.open.qq.com/wiki/%E8%B7%B3%E6%9D%BF%E6%9C%BA%E7%9B%B8%E5%85%B3%E9%97%AE%E9%A2%98
http://www.cnblogs.com/mfryf/archive/2012/05/08/2490131.html