DNS Spam from OPNSense Firewall

[engels0n]

Hi everyone,

I just looked into my AdGuard DNS and found some strange entries.
My OPNSense firewall has a LOT of queries to my DNS server ...

Can anyone explain why this happens or where I have to look into to get rid of them?

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Thanks in advance.

[bamf]

Do you have a firmware update check cronjob? Disable it.

[engels0n]

As far as i can see there is none under system -> settings -> cron.

[Fabian Wenk]

I do remember that it was possible to directly show in the Dashboard (in System Information) the status if there are updates available or not. I do remember that it was possible to disable this somewhere in the settings (what I did), but I am currently unable to find it again. My Systems all only show "Click to view pending updates." there.

At least something like this could explain that this lookups do happen, e.g. when someone may have the Dashboard open all day long.