title: Fail2ban filter for a specific string in *access.log
body: <p>I have many GET Request on my server to "<code>nike-air</code>" URLs like this</p>
  
  <pre><code>216.*.*.* - - [13/Dec/2016:20:07:54 +0100] "GET /jd/nike-huarache-2010.php HTTP/1.1" 404
  216.*.*.* - - [13/Dec/2016:20:07:57 +0100] "GET /jd/nike-roshe-run-homme-original.php HTTP/1.1" 404
  187.*.*.* - - [13/Dec/2016:20:17:26 +0100] "GET /jd/nike-mercurial.php HTTP/1.1" 404
  </code></pre>
  
  <p>I decide to create a fail2ban filter for stop it:</p>
  
  <pre><code># apache-nike.conf
  [Definition]
  
  failregex = ^&lt;HOST&gt; -.*"GET .*nike-.*".*
  ignoreregex =
  </code></pre>
  
  <p>It works but I think it can be improved? Too bad there is no online tool to create filters :) </p>
  
  <p>Thank you for your suggestions.</p>