远程Linux服务器，报Host key verification failed错误。
问题：使用其他电脑登录远程Linux服务器，可以登录，但其中一台电脑登录时报该错误。
原因：是因为登录服务器时主机会把它的服务器登录标识证书记录下来，下次登录时会去比对之前的记录，由于系统重装，标识变了导致不能继续登录。
解决：在客户端执行命令：ssh-keygen -R 要登录的服务器ip
错误详情和解决：
LOVE:~ han$ ssh [email protected]
@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@
@ WARNING: REMOTE HOST IDENTIFICATION HAS CHANGED! @
@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@
IT IS POSSIBLE THAT SOMEONE IS DOING SOMETHING NASTY!
Someone could be eavesdropping on you right now (man-in-the-middle attack)!
It is also possible that a host key has just been changed.
The fingerprint for the RSA key sent by the remote host is
7d:df:32:b0:dd:56:cb:ab:7b:4e:c1:40:84:6a:49:c2.
Please contact your system administrator.
Add correct host key in /Users/han/.ssh/known_hosts to get rid of this message.
Offending RSA key in /Users/han/.ssh/known_hosts:10
RSA host key for 110.211.114.117 has changed and you have requested strict checking.
Host key verification failed.
LOVE:~ han$ ssh-keygen -R 110.211.114.117
# Host 111.231.144.197 found: line 10 type RSA/Users/hanzhaoyang/.ssh/known_hosts updated.
通过以上就可以解决问题。