variables:
##  $ ip_address       : chr  &quot;127.0.0.1&quot; &quot;123.123.123.123&quot; &quot;123.123.123.123&quot; &quot;123.123.123.123&quot; ...
##  $ remote_user_ident: chr  NA NA NA NA ...
##  $ local_user_ident : chr  &quot;frank&quot; NA NA NA ...
##  $ timestamp        : POSIXct, format: &quot;2000-10-10 20:55:36&quot; &quot;2000-04-26 04:23:48&quot; ...
##  $ request          : chr  &quot;GET /apache_pb.gif HTTP/1.0&quot; &quot;GET /pics/wpaper.gif HTTP/1.0&quot; &quot;GET /asctortf/ HTTP/1.0&qu