title: Apache logs -- what is difference between %a and %h?
body: <p>%a is "Remote IP-address" and %h is "Remote host", but when I test it, both print out the same IP addres. What's the difference?</p>
  
  <p>sample log output for log format "%a %h:</p>
  
  <pre><code>192.168.1.2 192.168.1.2
  192.168.1.2 192.168.1.2
  192.168.1.2 192.168.1.2
  </code></pre>