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Splunkbase is already accessible via proxy (presuming you've configured it to appropriate Search Heads in your environment)

What does this Ideas.Splunk suggestion call for that isn't already possible?

Also – outside of quick-start, standalone, or tiny installs … I have never run across a sane Splunk admin who's installing directly off Splunkbase: you always, Always, ALWAYS download it locally, upload to a dev instance, test-and-tweak, then and only then put it in Production