Linux SSH 远程登录错误解决办法 WARNING: REMOTE HOST IDENTIFICATION HAS CHANGED!
最近在登录一台机器的时候，发现无法等入了，出现以下错误
原来known_hosts是记录远程主机的公钥的文件，之前重装个系统，而保存的公钥还是未重装系统的系统公钥，在ssh链接的时候首先会验证公钥，如果公钥不对，那么就会报错.
使用shh-keygen 命令
wljdeMacBook-Pro:~ wlj$ ssh root@47.**.***.*** @@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@ @ 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 ECDSA key sent by the remote host is SHA256:n9HdR0qHesf7Nx+D729TW47QZ9rdz8uDAwNlJQnMzeU. Please contact your system administrator. Add correct host key in /Users/wlj/.ssh/known_hosts to get rid of this message. Offending ECDSA key in /Users/wlj/.ssh/known_hosts:1 ECDSA host key for 47.**.***.*** has changed and you have requested strict checking. Host key verification failed. wljdeMacBook-Pro:~ wlj$ ssh-keygen -R 47.**.***.*** # Host 47.**.***.*** found: line 1 /Users/wlj/.ssh/known_hosts updated. Original contents retained as /Users/wlj/.ssh/known_hosts.old wljdeMacBook-Pro:~ wlj$ ssh root@47.**.***.*** The authenticity of host '47.**.***.*** (47.**.***.***)' can't be established. ECDSA key fingerprint is SHA256:n9HdR0qHesf7Nx+D729TW47QZ9rdz8uDAwNlJQnMzeU. Are you sure you want to continue connecting (yes/no)? yes Warning: Permanently added '47.**.***.***' (ECDSA) to the list of known hosts.