title: Need apache_note() function with nginx / usertrack for nginx
body: <p>I have nginx server , but need to run <strong>apache_note()</strong> functionality.<br/>
  Is there any module , or any patch of nginx which provides this function?
  Also need <strong>usertrack</strong> extension (which is readily available in apache) for nginx or similar alternative of it.If there is no usertrack available with nginx , please suggest some logic which emulates same functionality. </p>