title: "systemctl status apache2.service" error in starting apache2
body: <p><strong>root@kudo2:~#</strong> sudo systemctl restart apache2
  Job for apache2.service failed because the control process exited with error code. See "systemctl status apache2.service" and "journalctl -xe" for details.</p>
  
  <p><strong>root@kudo2:~#</strong> systemctl status apache2.service
  ● apache2.service - The Apache HTTP Server</p>
  
  <p>Loaded: loaded (/lib/systemd/system/apache2.service; disabled; vendor preset: disabled)</p>
  
  <p>Active: failed (Result: exit-code) since Tue 2017-10-03 14:22:01 UTC; 3min 33s ago</p>
  
  <p>Process: 17190 ExecStart=/usr/sbin/apachectl start (code=exited, status=1/FAILURE)</p>
  
  <p>Oct 03 14:22:01 kudo2 apachectl[17190]: (98)Address already in use: AH00072: make_sock: could not bind to address [::]:80</p>
  
  <p>Oct 03 14:22:01 kudo2 apachectl[17190]: (98)Address already in use: AH00072: make_sock: could not bind to address 0.0.0.0:80</p>
  
  <p>Oct 03 14:22:01 kudo2 apachectl[17190]: no listening sockets available, shutting down</p>
  
  <p>Oct 03 14:22:01 kudo2 apachectl[17190]: AH00015: Unable to open logs</p>
  
  <p>Oct 03 14:22:01 kudo2 apachectl[17190]: Action 'start' failed.</p>
  
  <p>Oct 03 14:22:01 kudo2 apachectl[17190]: The Apache error log may have more information.</p>
  
  <p>Oct 03 14:22:01 kudo2 systemd[1]: apache2.service: Control process exited, code=exited status=1</p>
  
  <p>Oct 03 14:22:01 kudo2 systemd[1]: Failed to start The Apache HTTP Server.</p>
  
  <p>Oct 03 14:22:01 kudo2 systemd[1]: apache2.service: Unit entered failed state.</p>
  
  <p>Oct 03 14:22:01 kudo2 systemd[1]: apache2.service: Failed with result 'exit-code'.
  root@kudo2:~# </p>