Just to add to hunters' great answer and to address your question about S.o.S. - Splunk on Splunk:
According the S.o.S Splunkbase page, as of Splunk Enterprise 6.3, this app is End of Life. It has been replaced and superseded by the Distributed Management Console (DMC). But now as of 6.5.0, the DMC is now known as the Monitoring Console.
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