Issue: Known Hosts

Troubleshooting

If you receive something like this 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 ECDSA key sent by the remote host is

SHA256:HwCVPtpeot4ZyxQj8XFNONZPMdUkWt1ssFMTgDZsnLE.

Please contact your system administrator.

Add correct host key in /Users/username/.ssh/known_hosts to get rid of this message.

Offending ECDSA key in /Users/username/.ssh/known_hosts:21

ECDSA host key for 192.168.0.227 has changed and you have requested strict checking.

Host key verification failed.

On the MacBook, run this command:

$ sudo nano /Users/♣your-username♣/.ssh/known_hosts

go to the offending line (sshit-underscore 21), in this case it is 21. Hit CTRL-k, which deletes the line

Then CTRL-o and CTRL-x to write and exit the editor