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this post was submitted on 29 Dec 2023
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Can i ask you to elaborate on this part
I used to have a separate box, but the only thing it did was port forwarding
Specifically i don't really understand the topology of this setup, and how do i set it up
You need to have a rather capable router / firewall combo.
You could pick up a ubiquity USG. Or set up something with an isp router and a PF sense firewall.
You need to have separate networks in your house. And the ability to set firewall rules between the networks.
The network that contains the hosting box needs to have absolutely no access to anything else in your house except it's route out to the internet. Don't have it go to your router for DHCP set it up statically. Don't have it go to your router for DNS, choose an external source.
The firewall rules for that network are allow outbound internet with return traffic, allow SSH and maybe VNC from your home network, then deny all.
The idea is that you assume the box is capable of getting infected. So you just make sure that the box can live safely in your network even if it is compromised.
(I just noticed i replied to your another comment, but still to you 😬)
Now i'm a little bit confused, what does it do then?
If the box doesn't have access to anything on the network, how would it do anything?
The box you're hosting on only needs internet access to connect the tunnel. Cloudflare terminates that SSL connection right in a piece of software on your web server.
I mean, what does it host if the only thing it has access to is the internet?
Cloudflare tunnel is a thin client that runs on your machine to Cloudflare; when there’s a request from outside to Cloudflare, it relays it via the established tunnel to the machine. As such, your machine only need outbound internet access (to Cloudflare servers) and no need for inbound access (I.e. port forwarding).
Thank you for your reply, but i actually was asking about the network stuff 😅
I used to use cloudflare tunnels for many years, now i'm a bit too tin foiled to use any cloudflare 😅
Ah sorry I went down the wrong rabbit hole.
I’d imagine an isolated VLAN should be sufficient good starting point to prevent anyone from stumbling on to it locally, as well as any potential external intruder stumbling out of it?