Limits of Splunk Enterprise default 0.0.0.0 binding for management and web ports in distributed deployments
Context Splunk Enterprise 7.x–9.x binds splunkd (port 8089) and Splunk Web (port 8000) to 0.0.0.0 by default, exposing both interfaces to every network segment the host reaches. The documentation recommends restricting these to 127.0.0.1 for single-instance installations, yet distributed topologies—search-head clusters, indexer clusters, and deployment serve
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