1.问题如下:
@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@ @ 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:UggbFShWZWxVBwyKHyYcCIkTNsl+r9Awg8Mv0E7mq5c. Please contact your system administrator. Add correct host key in /home/python/.ssh/known_hosts to get rid of this message. Offending ECDSA key in /home/python/.ssh/known_hosts:1 remove with: ssh-keygen -f "/home/python/.ssh/known_hosts" -R 39.108.71.7 ECDSA host key for 39.108.71.7 has changed and you have requested strict checking. Host key verification failed. lost connection
2.原因分析
在主机子系统每次成功ssh连接远程操作,都会把你每个你访问过计算机的公钥(public key)都记录在主机的目录/Users/icarus/.ssh/known_hosts下,当下次访问相同子机服务器时,会核对公钥。如果公钥不同,会发出警告,避免你受到DNS Hijack之类的攻击。
3.解决方法
进入目录删除文件即可,然后重新连接就能发现连接上了。 cd ~/.ssh/ rm known_hosts即可完美解决!
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