If you have access to the site that will store the files, I recommend installing a Splunk Universal Forwarder. The forwarder will monitor the file in the same way Splunk is doing for you now and send the contents to your indexer(s). Installing a forwarder is very simple. See the docs at http://docs.splunk.com/Documentation/Splunk/6.2.4/Forwarding/Aboutforwardingandreceivingdata.
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