Splunk
Splunk Enterprise is a software product that enables you to search, analyze, and visualize the data gathered from the components of your IT infrastructure or business. Splunk Enterprise takes in data from websites, applications, sensors, devices, and so on. After you define the data source, Splunk Enterprise indexes the data stream and parses it into a series of individual events that you can view and search.
Most users connect to Splunk Enterprise with a web browser and use Splunk Web to administer their deployment, manage and create knowledge objects, run searches, create pivots and reports, and so on. You can also use the command-line interface to administer your Splunk Enterprise deployment.
You can extend the Splunk Enterprise environment to fit the specific needs of your organization by using apps. An app is a collection of configurations, knowledge objects, views, and dashboards that runs on the Splunk platform. A single Splunk Enterprise installation can run multiple apps simultaneously. Browse available apps on Splunkbase or build your own on the Splunk developer site.