Fix for WARNING: REMOTE HOST IDENTIFICATION HAS CHANGED!

In this short article we will go over the fix for this warning message “WARNING: REMOTE HOST IDENTIFICATION HAS CHANGED!”

Here is the output for this type of warning:

 Why do you get this error ? 

This is common when you change the name of your server or like in my case when you recover a server from a faliure and give it the same ip address as in the past.

 

What is the fix for this warning ? 

The fix is quite simple. You just need to remove the line from you ../known_hosts file that points to the ip/host you are trying to connect to.

1 – You can do by editing your known_hosts using and editor.

2 – Use ssh-keygen command with the -R option.

  • the -R option will require the host name or the ip address as input and it will remove the specific line from your ../known_hosts.
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Next you just need to login again and the new key will be added to the ../known_hosts file.

 

And we are done !

   

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