Adguard home using DNS that is not in list

[himazawa]

I am using AdGuard Home v0.107.44

I have have set Load Balancing DNS via file. The content of the file is:

127.0.0.1:5335
1.1.1.1

Adguard should only use the DNS servers available in that list but for some reasons I found out that in the last 90 days adguard reported ~10.000 queries to Google DNS.

The server is running since 2022 but that's the first time I see it querying google dns. I didn't touched the AdGuard config in the last 90 days.

Just in case it's needed:

uname -a
Linux DietPi 6.1.21-v8+ #1642 SMP PREEMPT Mon Apr  3 17:24:16 BST 2023 aarch64 GNU/Linux

[hagezi]

@himazawa Check your configured Fallback DNS servers. Settings > DNS settings

[himazawa]

@hagezi the Fallback DNS list is empty

[gordonmilligan]

I also have this issue. My adguard home's top upstream server is 8.8.8.8:53 and it's also the slowest upstream server. I do not have this in my config. I have no idea where it is getting picked up from.

[gordonmilligan]

I solved my issue. I had added in custom DNS to specific clients a long time ago. This was the problem.

I found this by grepping for the offending DNS IP address in the adguard home configuration yaml file.