ssh-copy-id Permission denied (publickey,gssapi-keyex,gssapi-with-mic). 的解决方案

-bash-4.2# ssh-copy-id 192.168.9.180
/usr/bin/ssh-copy-id: INFO: attempting to log in with the new key(s), to filter out any that are already installed
/usr/bin/ssh-copy-id: INFO:  key(s) remain to be installed -- if you are prompted now it is to install the new keys
Permission denied (publickey,gssapi-keyex,gssapi-with-mic).

-bash-4.2# ssh root@192.168.9.180
@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@
@    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
:e1::8a:d7:f1:a9:6e:0d::cf:ff::::.
Please contact your system administrator.
Add correct host key in /root/.ssh/known_hosts to get rid of this message.
Offending ECDSA key in /root/.ssh/known_hosts:
ECDSA host key for 192.168.9.180 has changed and you have requested strict checking.
Host key verification failed.

如果 是报的这个错:

Host key verification failed.

vi /etc/ssh/sshd_config

修改 PasswordAuthentication no

为 PasswordAuthentication yes

重启 sudo systemctl restart sshd

如果 是报的是 publickey,gssapi-keyex,gssapi-with-mic

passwd root 下

最近再给登陆的用户设置个密码,就解决了