Cloudflare for private network
reddit / selfhosted

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h3rd3n · 2023-11-24 07:35

Hi,

I've got a question regarding DNS .
I can create a DNs record like this:
server.domain.tld with IP 192.168.1.25 for example.
When I use it, it will work internally as long as I have internet.
My question is - can Cloudflare see what's happening? All the requests
etc? I guess so, right?

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zfa · 2023-11-24 07:39

If you use an 'internal' IP address (RFC1918) in an A record at
Cloudflare then you are not able to enable proxying (orange cloud).

Upshot is that they can 'see' DNS lookups but all traffic will be
direct and never leave your network. they cannot see the traffic or
anything like the protocl being used, URLs if web traffic etc. etc.

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h3rd3n · 2023-11-24 11:05

Ah okay that's nice , so basically they could potentially see full
URLs and what possible parameters a get request for example contains.
But not the traffic itself.

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zfa · 2023-11-24 11:16

No, they can't see URLs. They can't see anything as they don't proxy
RFC1918 addresses. They can just see someone ask for the IP of a
hostname so could at most confer it is then being accessed in some way
by the requester.

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No_Dragonfruit_5882 · 2023-11-24 13:06

You need to use your public ip and forward the port for it to work.