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How to display unbound queries

asked 2021-09-20 14:47:47 +0000

viktak gravatar image

updated 2021-09-21 14:37:29 +0000

Dear All,

I am using unbound for DNS and would like to see the traffic it generates, but so far I haven't been able to do it. I am able to see pretty much any traffic I want on my network, but I can't see the traffic unbound generates.

I can see the unencrypted DNS requests/replies within my network, but I can't see what unbound does. Is there a reason for that?

The network is my home network, wired. There are also wireless clients, but in this case it is not relevant. Unbound is running on a Raspberry Pi that is also running PiHole.

I would appreciate any pointers - this has been driving me crazy for the last couple of days...

Thank you

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This looks like a capture problem first, then may or may not be a decode question.

Can you update the question title and description with information about the network - wired, wireless, devices?

Chuckc gravatar imageChuckc ( 2021-09-21 14:17:41 +0000 )edit

I added some more info about the network.

I agree that it may be a capture problem, for two reasons:

  1. everything else (well, so far...) IS visible in WS.
  2. I am just learning WS and (from my research on the subject) I understand there are capture filters and display filters. I found and use display filters, but I can't see any capture filters set. I think they are off, but I'm not sure.
viktak gravatar imageviktak ( 2021-09-21 14:41:20 +0000 )edit

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answered 2021-09-21 16:46:23 +0000

Chuckc gravatar image

Are you making the packet capture on the RPi? If not, check the information in Ethernet capture setup

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Thank you for putting me in the right direction. Moments into reading that page I realized that my PiHole is on a switched network and that's why I cannot see its traffic from my PC.

I did a capture on the rpi itself and now and there I can indeed see the unbound traffic.

Thank you for setting me straight! :)

viktak gravatar imageviktak ( 2021-09-21 17:06:54 +0000 )edit

answered 2021-09-21 11:35:09 +0000

hugo.vanderkooij gravatar image

I guess you missed this part in the unbound advertisement:

To help increase online privacy, Unbound supports DNS-over-TLS and DNS-over-HTTPS which allows clients to encrypt their communication.

Which I guess explains you are propably looking for the wrong packets.

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I may be wrong, but encrypted traffic, in my opinion, is still traffic. And I cannot see that showing up. What I expect is to see encrypted traffic between unbound and an upstream DNS server. Which I don't.

Please explain where I am wrong.

viktak gravatar imageviktak ( 2021-09-21 11:43:54 +0000 )edit

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Asked: 2021-09-20 14:47:47 +0000

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Last updated: Sep 21 '21