Hi folks
I run a Pi-hole on my home UTM , and was noticing a huge amount of dns in the PiHole log traffic that was not resolving and also various hits to sites, all from the UTM...
So I finally figured out there where a whole bunch of Network Definitions, "doing nothing".
After doing a massive cleanout of the Network Definitions, and mainly DNS Hosts that I had setup over the years and no longer used in Web Filters/Skip lists etc the CPU usage and traffic has dropped so much.
One pain has been Sophos LiveConnect trying to resolve to a nonexistent all.broker.sophos.com (legacy endpoint protection) all I did was point it to d1.sophosupd.com, so it stops flooding with DNS requests.
The cleanup is easy to do, as you can check where the Definitions are used by clicking on the little blue "I" icon... confirm its clear or not needed and then Delete.
Dont delete the "unresoved" Users, as this will muck up the User/Web Profiles if you use them.
Cheers
Craig
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