refo/Warning: remote host identification has changed.md

## ssh-updatehost.sh
#!/usr/bin/env sh

HOST=$1

ssh-keygen -R "${HOST}"
ssh-keyscan -H "${HOST}" >> ~/.ssh/known_hosts

## Warning: remote host identification has changed.md

      
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              Warning: remote host identification has changed.md
            
          
    Remove the host from known_hosts

If you trust the server and already know that server fingerprint changed due to re-install for example;
you could just remove the previous identification from the known_hosts file.
ssh-keygen -R "remote.host.ip"

You can then add the new fingerprint if you don't want ssh to prompt you to do so.
ssh-keyscan -H remote.host.ip >> ~/.ssh/known_hosts

Automate the process

If you would like to automate this process, a simple shell script could ease the task
#!/usr/bin/env sh

HOST=$1

ssh-keygen -R "${HOST}"
ssh-keyscan -H "${HOST}" >> ~/.ssh/known_hosts
	#!/usr/bin/env sh

	HOST=$1

	ssh-keygen -R "${HOST}"
	ssh-keyscan -H "${HOST}" >> ~/.ssh/known_hosts