title: How to analyze httpd (apache webserver) logs in CentOS 7
body: <p>I have configred a static IP on my server that is using CentOS 7. Here httpd is the webserver. Now I have to analyze following things.</p>
  
  <ol>
  <li>Total number of queries per day (or toall)</li>
  <li>Total requests sent and served.</li>
  <li>Unique visitors details</li>
  <li>List of queries recieved. (status etc.)</li>
  <li>HOSTs/OS/Browsers that request for query</li>
  <li>Errors etc.</li>
  <li>Should be able to save it in CSV etc. format so that I can import it to excel.</li>
  </ol>
  
  <p>Can anyone suggest me some log analyzer that will fullfill above requirements ?</p>