Hardware suggestion

[Colin]

@maxuser74

I'm using a 4g sim with NAT and with a rolling public (and shared) IP address.
So I don't think I have other choices ... or do I ?

It depends how often it changes I think. If the system is normally on 24/7 and the ip only changes if you power down then you should be ok with a system such as I had. If it changes routinely though then you are probably right.

Be careful using a VPN, read this FAQ post, which I think explains the issues that can arise.

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…

Rather than a VPN with NGINX or similar I use Cloudflare Zero Trust (which is free). Also see Tutorial - Secure your home automation with Tailscale which is another good alternative.