title: Apache disabling mpm_prefork error: The following modules depend on mpm_prefork and need to be disabled first: php7.3
body: <p>I have a 8GB droplet on digitalocean. We launched our site today and we got intense traffic, we have about 3000 concurrent users.</p>
  <p>I tried to raise the amount of concurrent connections (with the advice of apache2buddy) but the suggested MaxRequestWorkers to be 482. Here is the file:</p>
  <pre><code>&lt;IfModule mpm_prefork_module&gt;
          ServerLimit             482
          StartServers              5
          MinSpareServers           5
          MaxSpareServers          10
          MaxRequestWorkers         482
          MaxConnectionsPerChild   0
  &lt;/IfModule&gt;
  </code></pre>
  <p>Apache2 uses mdm_prefork and we have read that it's better if we use <strong>mdm_worker</strong>.</p>
  <p>So i tried to disable mdm_prefork, so that I can enable mdm_worker:</p>
  <pre><code> a2dismod mpm_prefork
  </code></pre>
  <p>And I got the following error:</p>
  <pre><code>ERROR: The following modules depend on mpm_prefork and need to be disabled first: php7.3
  </code></pre>
  <p>What do I have to do to enable mpm_worker?</p>