title: why can't use 443 in httpd.conf?
body: <p>If I use 443 in httpd.conf and want to start the httpd,  the error message is:</p>
  
  <pre><code>(98)Address already in use: make_sock: could not bind to address [::]:443
  (98)Address already in use: make_sock: could not bind to address 0.0.0.0:443
  no listening sockets available, shutting down
  Unable to open logs
  </code></pre>
  
  <p>Actually I don't use 443, I check the port of 443 by:</p>
  
  <pre><code>lsof -i:443
  </code></pre>
  
  <p><strong>I think the port of 443 is used in ssl.conf, so I can't use it in httpd.conf.
  When I use 444 or 666 in the httpd.conf, I can start the httpd.</strong></p>
  
  <p><strong>This is the reason?</strong> </p>