Apache port changed but still have to http://localhost:81/dashboard/
<p>I changed Apache port from 80 to 81 because 80 is used by skype.</p>

<blockquote>
  <p>(I did this</p>
  
  <p><strong>Locate the following lines</strong> :
      #Listen 12.34.56.78:80</p>
  
  <p>Listen 80</p>
  
  <p>ServerName localhost:80</p>
  
  <p><strong>Replace them by</strong> :
      #Listen 12.34.56.78:81</p>
  
  <p>Listen 81</p>
  
  <p>ServerName localhost:81)</p>
</blockquote>

<p>Long story short, if I do <a href="http://localhost:81/dashboard/" rel="nofollow noreferrer">http://localhost:81/dashboard/</a> it works but I want to only use <a href="http://localhost/dashboard/" rel="nofollow noreferrer">http://localhost/dashboard/</a>.</p>

<p>I did Xampp -> Config -> Service and Port Settings -> Main port changed from 80 to 81 and SSL port still 443</p>

<p>I'd like to know where's the mistake and how can I repair it.</p>