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Why does Google try and access my DNS?

Remuflon
I have been using Google for my final DNS Forwarder.  This works fine.

However, in my firewall logs I see Google constantly trying to access my network on upd 53.  In fact, at least once a day, Sophos announces that I'm being port-scanned from 8.8.8.8 and 8.8.4.4.

Why is Google doing that?  Should I be allowing their connection to my internal DNS?

My domain DNS records are hosted by Godaddy, btw.


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  • 0
    Can you show such a log line from the full firewall log (not the live log)?

    ----------
    Sophos user, admin and reseller.
    Private Setup:

    • XG: HPE DL20 Gen9 (Core i3-7300, 8GB RAM, 120GB SSD) | XG 18.0 (Home License) with: Web Protection, Site-to-Site-VPN (IPSec, RED-Tunnel), Remote Access (SSL, HTML5)
    • UTM: 2 vCPUs, 2GB RAM, 50GB vHDD, 2 vNICs on vServer (KVM) | UTM 9.7 (Home License) with: Email Protection, Webserver Protection, RED-Tunnel (server)
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  • 0
    Can you show such a log line from the full firewall log (not the live log)?

    ----------
    Sophos user, admin and reseller.
    Private Setup:

    • XG: HPE DL20 Gen9 (Core i3-7300, 8GB RAM, 120GB SSD) | XG 18.0 (Home License) with: Web Protection, Site-to-Site-VPN (IPSec, RED-Tunnel), Remote Access (SSL, HTML5)
    • UTM: 2 vCPUs, 2GB RAM, 50GB vHDD, 2 vNICs on vServer (KVM) | UTM 9.7 (Home License) with: Email Protection, Webserver Protection, RED-Tunnel (server)
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