* Adjust packaged installation docs for security on by default
This commit introduces necessary changes to guide users through
the installation of our DEB/RPM packages, now that security is
enabled and configured by default.
* Update security docs and configure includes
* Update wording in check-running.asciidoc
* Adding hidden GET request
* Update heading
* Updated reconfigure heading
Co-authored-by: Adam Locke <adam.locke@elastic.co>
Co-authored-by: Elastic Machine <elasticmachine@users.noreply.github.com>