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I found my mac automatically tries to connect to the Google public servers 8.8.8.8 and 8.8.4.4 (I haven't set it). I tried to figure out why. Then I found that after I deleted the CriticalDomains in /Library/Preferences/com.apple.networkextension.control.plist, the problem is solved. However, those domains are as follows: { CriticalDomains = ( "cheeserolling.apple.com", "woolyjumper.sd.apple.com", "basejumper.apple.com", "basejumper-vip.sd.apple.com", "basejumper.sd.apple.com", "locksmith.apple.com", "gdmf-staging-int.apple.com", "pallas-uat.rno.apple.com", "pr2-pallas-staging-int-prz.apple.com", "livability-api.swe.apple.com" ); } May I ask what are those domains? I cannot find anything online. Is it possible to link those Apple dns domains to those public Google servers, maybe with some granted access to those Apple servers?

I found my mac automatically connects to the Google server 8.8.8.8 and 8.8.4.4 that I haven't set in my mac. I figured out it seems to be set via /Library/Preferences/com.apple.networkextension.control.plist as follows: { CriticalDomains = ( "cheeserolling.apple.com", "woolyjumper.sd.apple.com", "basejumper.apple.com", "basejumper-vip.sd.apple.com", "basejumper.sd.apple.com", "locksmith.apple.com", "gdmf-staging-int.apple.com", "pallas-uat.rno.apple.com", "pr2-pallas-staging-int-prz.apple.com", "livability-api.swe.apple.com" ); } I cannot find any info about those domains online. I am wondering if it is possible like for apple staffs to set those CriticalDomains to control the connections to servers.