Massive traffic to x.x.x.x-.in-addr.arpa, thousands of requests

[Knubbel]

Prerequisites

• [X] I have checked the Wiki and Discussions and found no answer

• [X] I have searched other issues and found no duplicates

• [X] I want to report a bug and not ask a question

Operating system type

Linux, Other (please mention the version in the description)

CPU architecture

ARMv7

Installation

GitHub releases or script from README

Setup

On one machine

AdGuard Home version

v0.107.17

Description

What did you do?

I have Adguard Home running on a Raspberry Pi 3b and 64bit Raspi-OS (fully updated). Since the last update of AGH my statistics show a massive number of DNS requests to 8 different x.x.x.x-.in-addr.arpa, Domains. The top one has 175.000 hits in 7 days. In the request log I can see that sometimes there were thousands of requests in the very same second. It all happens between the Raspi-AGH installation and my router (a AVM Friztbox with current OS).

[fernvenue]

Hi @Knubbel, these .in-addr.arpa are PTR records, are used for reverse DNS lookups, you can disable reverse resolving of client's IP addresses in Web UI, or add *.in-addr.arpa to disallowed domains. Here is an explanation about PTR records.

[Birbber]

Closing as completed. Please re-open if needed.