WARNING: REMOTE HOST IDENTIFICATION HAS CHANGED!

The warning message indicates that the SSH key for the remote host ip_address has changed, which can be a potential security risk. This could mean that either the host’s key has legitimately changed or someone could be attempting a man-in-the-middle attack. To resolve this, you need to update your known hosts file. Here’s how you can do it:

ssh-keygen -R 82..ip address

Then, try reconnecting:

ssh root@82... ip address

If you are not sure whether the change in the host key is legitimate, you should verify with the system administrator of the remote host before proceeding.