title: Apache Server: no listening sockets available
body: <p>I recently downloaded an Apache server binary (Apache 2.4.12 x64)</p>
  <p>When I try to run the server in command prompt I get the following error:</p>
  <blockquote>
  <p>(OS 10048)Only one usage of each socket address (protocol/network address/port) is normally permitted.  : AH00072: make_sock: could not bind to address 0.0.0.0:80</p>
  <p>AH00451: no listening sockets available, shutting down</p>
  <p>AH00015: Unable to open logs</p>
  </blockquote>
  <p>I'm guessing that port 80 is already being used. How do I change the binding port, which port(s) should I use? If there is another problem how do I solve it?</p>