title: Adding another port to listen in httpd.conf crashes Apache
body: <p>The requirement of the project is when someone access the application using port <code>80</code>, they should see the default application however if someone access the application with port <code>8083</code> then they should see the control panel of the application.</p>
  
  <p>I'm on CentOS, adding <code>Listen 80</code> and <code>Listen 8083</code> in <code>httpd.conf</code> crashes Apache.</p>
  
  <p><strong><em>cpanel.conf</em></strong></p>
  
  <pre><code>&lt;VirtualHost *:8083&gt;
          ServerName cpanel.com
          ServerAlias www.cpanel.com
          DocumentRoot /var/www/cpanel
  &lt;/VirtualHost&gt;
  </code></pre>
  
  <p>When I restart Apache, I get the following error messsage.</p>
  
  <p><strong><em>Error Message</em></strong></p>
  
  <pre><code> httpd.service - The Apache HTTP Server
     Loaded: loaded (/usr/lib/systemd/system/httpd.service; enabled; vendor preset: disabled)
     Active: failed (Result: exit-code) since Sat 2018-07-07 18:56:00 EDT; 7min ago
       Docs: man:httpd(8)
             man:apachectl(8)
    Process: 14972 ExecStop=/bin/kill -WINCH ${MAINPID} (code=exited, status=1/FAILURE)
    Process: 14971 ExecStart=/usr/sbin/httpd $OPTIONS -DFOREGROUND (code=exited, status=1/FAILURE)
   Main PID: 14971 (code=exited, status=1/FAILURE)
  
  Jul 07 18:56:00 localhost.localdomain httpd[14971]: (13)Permission denied: AH00072: make_sock: co...083
  Jul 07 18:56:00 localhost.localdomain httpd[14971]: (13)Permission denied: AH00072: make_sock: co...083
  Jul 07 18:56:00 localhost.localdomain httpd[14971]: no listening sockets available, shutting down
  Jul 07 18:56:00 localhost.localdomain httpd[14971]: AH00015: Unable to open logs
  Jul 07 18:56:00 localhost.localdomain systemd[1]: httpd.service: main process exited, code=exited...URE
  Jul 07 18:56:00 localhost.localdomain kill[14972]: kill: cannot find process ""
  Jul 07 18:56:00 localhost.localdomain systemd[1]: httpd.service: control process exited, code=exi...s=1
  Jul 07 18:56:00 localhost.localdomain systemd[1]: Failed to start The Apache HTTP Server.
  Jul 07 18:56:00 localhost.localdomain systemd[1]: Unit httpd.service entered failed state.
  Jul 07 18:56:00 localhost.localdomain systemd[1]: httpd.service failed.
  Hint: Some lines were ellipsized, use -l to show in full.
  </code></pre>
  
  <p>I'm very new to this so your help will be highly appreciated.</p>