How to 'whitelist' IP address's that can access Node RED

[TotallyInformation]

I have updated the security FAQ with references to Node.js security best practices, the blocklist functions and this thread.

Safely accessing Node-RED over the Internet

NOTES: This is a large and complex subject. So this FAQ is likely to be a work-in-progress for some time. This FAQ MUST NOT be taken as gospel or as professional advice. The information is shared in good faith but with no guarantees. Get the input of professionals and get your system regularly security tested, at least penetration tested. Please feel free to add suggestions for content and links to existing resources. Overview of options There are two main options for making Node-RED endpoin…