How to fix: "WARNING: REMOTE HOST IDENTIFICATION HAS CHANGED" on Mac and Linux

How to fix: "WARNING: REMOTE HOST IDENTIFICATION HAS CHANGED" on Mac and Linux

Resolve Using ssh-keygen

Another solution would be to use the ssh-keygen utility to delete the offending key from your known_hosts file, which can be done with the following command:

$ ssh-keygen -R [hostname-or-IP]

So in my example I'd use it like this:

$ ssh-keygen -R ec2-192-168-1-1.compute-1.amazonaws.com

This method is good if you don't want to manually alter the known_hosts file yourself, and the utility is easier to use if you have multiple hostnames and IP addresses to fix. It can also handle hashed hostnames in a known_hosts.old file.

https://stackabuse.com/how-to-fix-warning-remote-host-identification-has-changed-on-mac-and-linux/

YOUR REACTION?