title: AsyncAppender in log4j.properties file
body: <p>I'm having some trouble with this, and even though I've searched for an answer, couldn't find it yet.</p>
  
  <p>I've seen a lot of different log4j configurations in order to use the <strong>AsyncAppender</strong>, anyway, none of them was related to a .properties configuration file.</p>
  
  <p>I've tried different configurations on my own, but no success at all when trying to use the asyncAppender with a SocketAppender. </p>
  
  <p>Can the AsyncAppender be configured on the .properties file, or does it need to be configured by code/xml configuration?</p>
  
  <p>Thanks in advance!</p>