Random upstream dns appears in statistics

[rclarsfull]

Prerequisites

• I have checked the Wiki and Discussions and found no answer

• I have searched other issues and found no duplicates

• I want to report a bug and not ask a question or ask for help

• I have set up AdGuard Home correctly and configured clients to use it. (Use the Discussions for help with installing and configuring clients.)

Platform (OS and CPU architecture)

Custom (please mention in the description)

Installation

Docker

Setup

Other (please mention in the description)

AdGuard Home version

Version: v0.107.48

Action

not sure maybe it was an update of the docker container

Expected result

nothing should change

Actual result

An random DNS server appears in my upstrem dns List. I can´t tell what it is. The first one:

This are my settings:

Can this happen due to an update? The setting for the kind of access to the upstream dns servers was changed from parallel to automatic too.
Or should I be concerned that my network is compromised?

Additional information and/or screenshots

No response

[rclarsfull]

My setup: The docker host is the dns server that is served to any device by my pfsense dhcp server

[Dynamic5912]

Router IP address?

[rclarsfull]

No this address Isn't in my local network. I have an 192.168.1.0 network.

[catfluoride]

That address is private, i.e., it only belongs to LAN. Isn't that the ip address of your container i.e., the actual internal ip of your ADGH instance?

https://www.whatismyip.com/172-ip-address/

[ainar-g]

This is likely the automatically detected address for private rDNS. See Settings → DNS settings → Private reverse DNS servers.

[rclarsfull]

This is likely the automatically detected address for private rDNS. See Settings → DNS settings → Private reverse DNS servers.

Thx, this was it.👍