title: How to unlink the previous SSH key in Git
body: <p>I have followed the following steps to create and add a SSH key and deleted all the previously created keys in the folder ~/.ssh/</p>
  <ul>
  <li>$ ssh-keygen -t rsa -b 4096 -C &quot;myEmail@gmail.com&quot;</li>
  <li>$ eval &quot;$(ssh-agent -s)&quot;</li>
  <li>$ ssh-add -K ~/.ssh/id_rsa</li>
  <li>$ clip &lt; ~/.ssh/id_rsa.pub
  and then added the content in Git</li>
  </ul>
  <p>Then I try:</p>
  <ul>
  <li>$ git push -u origin master</li>
  </ul>
  <p>and I get:</p>
  <p>The authenticity of host 'github.com (140.82.121.4)' can't be established.
  ED25519 key fingerprint is SHA256:+DiY3wvvV6TuJJhbpZisF/zLDA0zPMSvHdkr4UvCOqU.
  This key is not known by any other names. Are you sure you want to continue connecting (yes/no/[fingerprint])?</p>
  <p>(That key is one of the previous I had created and deleted)</p>
  <p>What can I do to overcome this issue?</p>