National Checklist Program Repository

The University of Texas at Austin Information Security Office – System Hardening Guides

Department of Homeland Security – Application Whitelisting (AWL): Strategic Planning Guide

RedHat – Securing Red Hat Enterprise Linux 8

SANS – Router and Switch Security Policy

Splunk – Assess and Implement Critical Security Control #3

AT&T Cybersecurity – Free and Commercial Tools to Implement the CIS Security Controls, Part 10 &11;: Secure Configurations & Control for Network

YouTube – Secure Configuration for Hardware and Software

Center for Internet Security – Benchmarks

DISA – Security Technical Information Guide (STIG)