title: ssh "permissions are too open"
body: <p>I get the following error from ssh:</p>
  <pre><code>Permissions 0777 for '/Users/username/.ssh/id_rsa' are too open.
  It is recommended that your private key files are NOT accessible by others.
  This private key will be ignored.
  </code></pre>
  <p>What permissions should I give to the id_rsa file?</p>