好記心不如爛筆頭，ssh登入 The authenticity of host 192.168.0.xxx can't be established. 的問題
用ssh登入一個機器（換過ip地址），提示輸入yes後，螢幕不斷出現y，只有按ctrl + c結束
錯誤是：The authenticity of host 192.168.0.xxx can't be established.
以前和同事碰到過這個問題，解決了，沒有記錄，這次又碰到了不知道怎麼處理，還好有QQ聊天記錄，查詢到一下，找到解決方案：
執行ssh -o StrictHostKeyChecking=no 192.168.0.xxx 就OK
網址是：
http://blog.ossxp.com/2010/04/1026/
記一下，防止又忘記了，又快到3點了，無數個不眠之夜啊。
2011/10/11
某天機器又改IP了，ssh後，報：
[email protected]:~$ ssh -o StrictHostKeyChecking=no 192.168.0.130
@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@
@ 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
fe:d6:f8:59:03:a5:de:e8:29:ef:3b:26:6e:3d:1d:4b.
Please contact your system administrator.
Add correct host key in /home/mmt/.ssh/known_hosts to get rid of this message.
Offending key in /home/mmt/.ssh/known_hosts:38
Password authentication is disabled to avoid man-in-the-middle attacks.
Keyboard-interactive authentication is disabled to avoid man-in-the-middle attacks.
Permission denied (publickey,password).
注意這句
Add correct host key in /home/mmt/.ssh/known_hosts to get rid of this message.
執行：
mv /home/mmt/.ssh/known_hosts known_hosts.bak
再連：
ssh -o StrictHostKeyChecking=no 192.168.0.130
OK了!
參考連結：https://blog.csdn.net/kimsoft/article/details/5865418