in.addr.arpa

RouterOS Beginner Basics
1

Good day
Way is router calling this addressees every hour?
2023-09-06 17:00:00 PTR 60.5.168.192.in-addr.arpa MikroTik OK (cache) NXDOMAIN (0.0ms)
2023-09-06 17:00:00 PTR 30.5.168.192.in-addr.arpa MikroTik OK (cache) NXDOMAIN (0.0ms)
2023-09-06 17:00:00 PTR 3.5.168.192.in-addr.arpa MikroTik OK (cache) NXDOMAIN (0.0ms)
2023-09-06 17:00:00 PTR 10.5.168.192.in-addr.arpa MikroTik OK (cache)
Thank you in advance

2

Those are reverse domains (PTR) and looking at the IP address they arealso local 192.168.x.x

3

In other words, you have a program somewhere that is trying to get domain names from IPs, typically for display purposes.

4

I faund that is my DNS pihole from container. I don’t know way, will check later when all setup of my router is in order :slight_smile:

5

On Pihole it can be configured in

Settings → DNS → Conditional forwarding

6

Use Conditional forwarding / unmarked
Never forward non-FQDN A and AAAA queries / marked or unmarked doesn’t change a thing.
I am using : Quad9 (unfiltered, no DNSSEC)
Using: Quad9 (filtered, DNSSEC) is same.