Permitted domain one.one.one.one

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1

In the dashboard, I see one of the top permitted domains is one.one.one.one. If I google it, it's always mentioned in combination with Cloudflare. But I don't use Cloudflare as DNS server...

Any thoughts?

2

Please upload a debug log and post just the token URL that is generated after the log is uploaded by running the following command from the Pi-hole host terminal:

pihole -d

or do it through the Web interface:

Tools > Generate Debug Log

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3

Here is the token URL: https://tricorder.pi-hole.net/Ez6qwgKQ/

I meanwhile realized I use a Cloudflare tunnel for a few services on my (Openmediavault) NAS. It's also my NAS that "contacts" one.one.one.one. So that probably has something to do with it (if not all)...

4

I'll start with the obligatory "you are not running a supported OS". I don't believe that is related to the problem you posted, but unsupported can lead to odd behavior.

*** [ DIAGNOSING ]: Operating system
[✗] Distro:  Linuxmint
[✓] dig return code: 0
[i] dig response: "Raspbian=10,11,12 Ubuntu=20,22,23,24 Debian=10,11,12 Fedora=39,40 CentOS=8,9"
[✗] Error: Linuxmint is not a supported distro (https://docs.pi-hole.net/main/prerequisites/)

Let's take a look at the Clouflare DNS domain queries in your pihole.log. Please post the output of the following:

sudo grep 'one.one.one.one' /var/log/pihole/pihole.log | tail -n15

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5 
erik@MinipcLG2:~$ sudo grep 'one.one.one.one' /var/log/pihole/pihole.log | tail -n15
May 16 22:20:16 dnsmasq[1891]: query[A] one.one.one.one from 192.168.1.10
May 16 22:20:16 dnsmasq[1891]: cached one.one.one.one is 1.0.0.1
May 16 22:20:16 dnsmasq[1891]: cached one.one.one.one is 1.1.1.1
May 16 22:20:55 dnsmasq[1891]: query[A] one.one.one.one from 192.168.1.10
May 16 22:20:55 dnsmasq[1891]: cached one.one.one.one is 1.1.1.1
May 16 22:20:55 dnsmasq[1891]: cached one.one.one.one is 1.0.0.1
May 16 22:21:34 dnsmasq[1891]: query[A] one.one.one.one from 192.168.1.10
May 16 22:21:34 dnsmasq[1891]: cached one.one.one.one is 1.0.0.1
May 16 22:21:34 dnsmasq[1891]: cached one.one.one.one is 1.1.1.1
May 16 22:22:13 dnsmasq[1891]: query[A] one.one.one.one from 192.168.1.10
May 16 22:22:13 dnsmasq[1891]: cached one.one.one.one is 1.1.1.1
May 16 22:22:13 dnsmasq[1891]: cached one.one.one.one is 1.0.0.1
May 16 22:22:52 dnsmasq[1891]: query[A] one.one.one.one from 192.168.1.10
May 16 22:22:52 dnsmasq[1891]: cached one.one.one.one is 1.0.0.1
May 16 22:22:52 dnsmasq[1891]: cached one.one.one.one is 1.1.1.1
6

What client is at IP 10?

7

The NAS. Which has a few Cloudflare tunnels running. So that's probably related...?

8

Yes.

9

Thanks for your effort anyway! Cool to see Pi-hole has this debug-to-server feature.

10

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