我在我的桌面和两个服务器之间，以及从服务器到我的桌面设置了ssh密钥对，但是在我的桌面上重新安装操作系统后，我无法通过以下方式重新建立进入我的桌面的密钥对：
mkdir ~/.ssh chmod 700 ~/.ssh ssh-keygen -t ssh-copy-id username@server@H_502_3@我得到以下错误： @H_502_3@(名称以斜体更改为保护无辜我的桌面是Ubuntu的，我找不到答案 here)
@H_502_3@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@
@ 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 the RSA host key has just been changed.
The fingerprint for the RSA key sent by the remote host is
ab:cd:ef:gh
Please contact your system administrator.
Add correct host key in /home/user/.ssh/known_hosts to get
rid of this message.
Offending key in /home/user/.ssh/known_hosts:1
RSA host key for user.server has changed and you have requested strict
checking.
Host key verification Failed.
