Before you install Splunk Enterprise, make your operating system secure. Harden all Splunk Enterprise server operating systems.

• If your organization does not have internal hardening standards, use the CIS hardening benchmarks.
• At a minimum, limit shell and command-line access to your Splunk Enterprise servers.
• Secure physical access to all Splunk Enterprise servers.
• Ensure that Splunk Enterprise end users practice physical and endpoint security.