WARNING: REMOTE HOST IDENTIFICATION HAS CHANGED!
Warning remote host ssh how to solve
When you try to connect to a remote server via ssh and you receive the following message:
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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 RSA key sent by the remote host is
SHA256:shacode.
Please contact your system administrator.
Add correct host key in /Users/username/.ssh/known_hosts to get rid of this message.
Offending RSA key in /Users/username/.ssh/known_hosts:21
RSA host key for IP_ADDRESS has changed and you have requested strict checking.
Host key verification failed.
you can reset the known_host for the ip_address using the command:
ssh-keygen -R <hostname or ip_address>
the -R hostname Removes all keys belonging to hostname from a known_hosts file.