@ 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
linux相关用户ssh,scp等远程连接的公钥(public key)都记录在/home/username/.ssh/known_hosts,当下次访问时,如果公钥不同,则会报如上的错误。
solution:
vim /home/username/.ssh/known_hosts
找到你连接的主机对应的公钥,直接delete。