Host key for * has changed and you have requested strict checking.Host key verification failed.

根据提示尝试使用命令

ssh-keygen -R "172.16.12.139"

ssh-keygen -R "172.16.12.139"   
# Host 172.16.12.139 found: line 13
/root/.ssh/known_hosts updated.
Original contents retained as /root/.ssh/known_hosts.old

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