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IngoZenz / personaldnsfilter

See http://www.zenz-solutions.de/personaldnsfilter for details
GNU General Public License v2.0
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Huge amount of useless requests to unknown INACTIVE domains #234

Open smed79 opened 2 years ago

smed79 commented 2 years ago

Hi,

monitoring the traffic log on my network noticed that my phone sends a huge number of requests to random INACTIVE domains when personaldnsfilter is running.

e.g. www.t1723629113.org, www.t919780782.org, www.t1972982532.org (for more, see domains-100922.txt).

What is the origin of these useless requests and how to stop them from consuming my resources.

Thank you.

ghost commented 2 years ago

Those requests are sent by personalDNSfilter during initialization or network change in order to test upstream DNS speed. Nothing to worry about.

IngoZenz commented 2 years ago

they are only sent during pDNSf startup or network change in order to find the fastest DNS from your list of dns servers.

You can prevent this by configuring only 1 dns server.

Regards, Ingo

   

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Hi,

monitoring the traffic log on my network noticed that my phone sends a huge number of requests to random INACTIVE domains when personaldnsfilter is running.

e.g. www.t1723629113.org, www.t919780782.org, www.t1972982532.org (for more, see domains-100922.txt).

What is the origin of these useless requests and how to stop them from consuming my resources.

Thank you.

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smed79 commented 2 years ago

@ryder203

Nothing to worry about.

It's consume my limited dns requests and also flood and fake my logs.

@IngoZenz

You can prevent this by configuring only 1 dns server.

keeping 2 DNS servers, is there a way to prevent the dns speed check?

tomac4t commented 1 year ago

Also confused by these strange random dns request, and found out pDf is using random dns to speed test: https://github.com/IngoZenz/personaldnsfilter/blob/d3de26750b2fee7987310cf823e88320aee5a4e4/app/src/main/java/dnsfilter/DNSServer.java#L259-L263

Use google.com instead of random dns would be better? random dns isn't necessary to me.

IngoZenz commented 1 year ago

Just set 8.8.8.8 as only DNS server and there won't be these test requests. Currently it cannot be disabled for more then 1 DNS server.