title: How to synchronize the rsa_key for GitHub?
body: <p>I have GitHub account and I want to push local repositories into it. My key is stored at the path ~/.ssh/id_rsa_github. The path ~/.ssh/id_rsa is already used for other purpose. </p>
  
  <p>I generated the key by: ssh-keygen, then saved it in the path  ~/.ssh/id_rsa_github and then put it in SSH Keys tab in GitHub. </p>
  
  <p>When I do: "git push -u origin master" I get the error: </p>
  
  <blockquote>
    <p>The authenticity of host 'github.com (192.30.253.112)' can't be
    established. RSA key fingerprint is
    SHA256:****. Are you sure you
    want to continue connecting (yes/no)?  Host key verification failed.
    fatal: Could not read from remote repository.</p>
    
    <p>Please make sure you have the correct access rights and the repository
    exists.</p>
  </blockquote>
  
  <p>I also tried to type: <code>ssh-keyscan -t rsa github.com &gt;&gt; ~/.ssh/known_hosts</code> and then <code>git push -u origin master</code> and got:</p>
  
  <p>Warning: Permanently added the RSA host key for IP address '192.30.253.112' to the list of known hosts.
  Permission denied (publickey).
  fatal: Could not read from remote repository.</p>
  
  <p>Please make sure you have the correct access rights
  and the repository exists.</p>
  
  <p>Can you please help me? </p>