SSH Errors & How to Fix Them
Remote Host ID has Changed
If you used ssh command to connect to the remote server, but you got the following error message causing you can not connect:
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@ WARNING: REMOTE HOST IDENTIFICATION HAS CHANGED! @
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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:wruvASsAzradn/Acy0g0YwuDGBZb7ierhmL/fhhsSu4.
Please contact your system administrator.
Add correct host key in /Users/clay/.ssh/known_hosts to get rid of this message.
Offending ECDSA key in /Users/clay/.ssh/known_hosts:13
ECDSA host key for ohio.cs.nccu.edu.tw has changed and you have requested strict checking.
Host key verification failed.
The solution is to run the following command:
Where <ip-address> is the IP of the remote connection you were attemptingto connect to. Re-run the standard SSH command and you should be good to go!