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Title: AdGuardHome - Some top queried domains are parts of HTML Code
Post by: dasgoo on June 30, 2025, 08:39:54 AM

OPNsense 25.1.9_2

I updated to AdGuardHome Version: v0.107.63 and started noticing some of the top queried domains are parts of HTML code (ex. <html, <meta, <!doctype) and the client is localhost. I'm not sure if I've never noticed this previous to updating, but I don't think it was there. It seems to happen roughly every few minutes.

Any ideas what would cause this? Possible bug in AdGuardHome?

Thanks

Title: Re: AdGuardHome - Some top queried domains are parts of HTML Code
Post by: dasgoo on June 30, 2025, 09:27:34 AM

I rolled the update back and the odd queries have disappeared, however looking at the General Log Files in OPNsense I'm seeing a lot of these errors:

Code Select

The DNS query name does not exist: <!DOCTYPE. [for FireHOL1_WAN]
The DNS query name does not exist: <html. [for FireHOL1_WAN]

This repeats many times and it was what I was seeing in AdGuardHome. I had disabled the FireHOL1_WAN Alias and WAN rules yesterday. I just reloaded Unbound to flush the cache and it seems to have fixed the issue from what I can tell.

Title: Re: AdGuardHome - Some top queried domains are parts of HTML Code
Post by: Patrick M. Hausen on June 30, 2025, 10:12:34 AM

You configured a blocklist with the wrong URL that returns an HTML page instead of a pure ASCII list.

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English Forums => General Discussion => Topic started by: dasgoo on June 30, 2025, 08:39:54 AM