title: Access denied for phpMyAdmin after changing password,config.inc.php only readable
body: <p>I am using Linux Mint 17.3. I started using <code>XAMPP</code> but had <strong>error 2002</strong>. That is why I changed my root's password in <strong>phpMyAdmin</strong>. After that, I couldn't access <strong>phpMyAdmin</strong>. I got this message:</p>
  
  <blockquote>
    <p>phpMyAdmin tried to connect to the MySQL server, and the server rejected the connection. You should check the host, username and password in your configuration and make sure that they correspond to the information given by the administrator of the MySQL server</p>
  </blockquote>
  
  <p>I searched for a solution and found that I have to edit my <strong>config.inc.php</strong> file in the <strong>phpMyAdmin</strong> folder. The problem is that I can only read the file, but not edit it. How am I supposed to make this file editable?</p>