What is "lb._dns-sd._udp.0.86.168.192.in-addr.arpa" in my Permitted Domains dashboard?

General
1

My Pi Hole has only been running for about 24 hours or less and there are close to 900,000 hits to this "domain."

I tried searching for this but was unable to find anything exactly like this.

TIA

2

This is a DNS Discovery Service request. Frequently associated with the Apple Bonjour protocol.

If you have conditional forwarding enabled in Pi-hole, this can lead to circular DNS traffic and high query volumes.

Please generate a debug log, upload it when prompted and post the token here.

3

I didn't turn that on unless it is usually on.

Here is the debug log you requested.

https://tricorder.pi-hole.net/zhq8dxtt64

Thanks.

4

You do have conditional forwarding enabled:

    REV_SERVER=true
    REV_SERVER_CIDR=192.168.86.0/24
    REV_SERVER_TARGET=192.168.86.1
    REV_SERVER_DOMAIN=

This is the result - request from the router sent back to the router to resolve.

   Oct 11 00:00:08 dnsmasq[1467]: query[PTR] lb._dns-sd._udp.0.86.168.192.in-addr.arpa from 192.168.86.1
   Oct 11 00:00:08 dnsmasq[1467]: forwarded lb._dns-sd._udp.0.86.168.192.in-addr.arpa to 192.168.86.1

The conditional forwarding setting is in the admin GUI > settings > DNS. Disable this and see if the volume of queries drops.

5

This topic was automatically closed 7 days after the last reply. New replies are no longer allowed.