# Hardware suggestion **URL:** \ **Category:** Hardware\ **Tags:** docker\ **Created:** [26 December 2024 08:46 UTC](https://discourse.nodered.org/t/hardware-suggestion/94172 "2024-12-26T08:46:57Z")\ **Posts on this page:** 1\ **Showing post:** 17
**Author:** ![Colin](https://sea2.discourse-cdn.com/flex026/user_avatar/discourse.nodered.org/colin/32/17040_2.png) [@Colin](https://discourse.nodered.org/u/Colin)\ **Post date:** [27 December 2024 12:11 UTC](https://discourse.nodered.org/t/hardware-suggestion/94172/17 "2024-12-27T12:11:33Z")
> [@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](https://discourse.nodered.org/t/safely-accessing-node-red-over-the-internet/45024): > > Update 2025-02-19 The best advice for most people doing home automation is still: Don't expose Node-RED to the outside world! Where you really have to have some outside access, keep it as hands-off and restricted as possible. For example, using a Telegram bot. Also keep it as minimal as possible, e.g. Don't expose the Editor - EVER! If you want to provide remote control of your heating or the precious plants in your greenhouse, provide explicit controls with strong limits. Don't expose ever… 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](https://discourse.nodered.org/t/tutorial-secure-your-home-automation-with-tailscale/92849) which is another good alternative. --- _[View the full topic](https://discourse.nodered.org/t/hardware-suggestion/94172)._