OPNsense Forum

English Forums => 25.1, 25.4 Production Series => Topic started by: engels0n on July 09, 2025, 02:01:50 PM

Title: DNS Spam from OPNSense Firewall
Post by: engels0n on July 09, 2025, 02:01:50 PM
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?

2025-07-09 13_59_44-AdGuard Home – Mozilla Firefox.png
2025-07-09 14_00_07-AdGuard Home – Mozilla Firefox.png

Thanks in advance.
Title: Re: DNS Spam from OPNSense Firewall
Post by: bamf on July 09, 2025, 02:08:02 PM
Do you have a firmware update check cronjob? Disable it.
Title: Re: DNS Spam from OPNSense Firewall
Post by: engels0n on July 09, 2025, 03:07:00 PM
As far as i can see there is none under system -> settings -> cron.