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.