US-CERT – Risk Management Resource Guide

US-CERT – Asset Management Resource Guide

Help Desk Geek – How to Find Open and Blocked TCP/UDP Ports

netwrix – Handling Open Ports Secure and Finding Vulnerabilities

Environmental Protection Agency – Configuration Management Procedures

Georgetown University – Restricted List of Ports, Protocols, and/or Services

DoD Instruction 8551.01 – Ports, Protocols, and Services Management (PPSM)

vmware – What is Network Infrastructure Security?

Microsoft – Windows 10 Version 1903: Prevent Software Installation by Users

SANS – Software Installation Policy