呢兩條links都係講Android P嘅Private DNS點運作
https://android-developers.googleblog.com/2018/04/dns-over-tls-support-in-android-p.html?m=1
https://developer.android.com/reference/android/net/LinkProperties.html#isPrivateDnsActive()
講明假如有set到Private DNS嘅話,DNS queries就只可以由指定咗嘅DoT Server做,尋晚測試只係check到有
www.qq.com ,其他qq系列同埋 hao123 嗰堆大陸DNS qieries用114DNS,其他嘅app都行晒DoT而冇經dnsmasq,所以log唔到
換句話說部機內部嘅系統app有古惑嘅機會唔細
另外今朝再reboot入safe mode,又係只得
www.qq.com ,其他qq系列同 hao123 嘅114DNS queries,好明顯系統app有古怪!!!
同時都有試埋用data經自己VPN server出街,同時閂埋private dns,log低vpv client嘅DNS queries,呢次正常好多,冇晒堆qq同hao123,只係log低
connectivitycheck.gststic.com 同一埋google+Samsung server嘅queries
暫時得出嘅結論係只要connect咗wifi,就會被頻密連上qq同hao123...由於safe mode下都有相同情況,亦即係表面上Samsung嘅ROM係有qq同hao123有關嘅嘢喺入面