title: Retrieve log file from distant server with FileBeat
body: <p>I am currently using 4 servers, they have some log files I want to analyse. I want to use Logstash and Elasticsearch for that, and maybe filebeat too.
  I have made some tests, getting the files from the servers (manually) and analyzing them with Logstash (input => file). What I want to do is to configure FileBeat to get the log files as input (from the 4 servers). 
  So my question is, is it possible to make Filebeat get those files automatically as input?</p>