My understanding is that there were some issues with Apple often not allowing its own traffic to be filtered via firewalls on its systems. See discussion: htt

My understanding is that there were some issues with Apple often not allowing its own traffic to be filtered via firewalls on its systems. See discussion: https://news.ycombinator.com/item?id=25109724 https://news.ycombinator.com/item?id=25109724 https://news.ycombinator.com/item?id=37500237 https://news.ycombinator.com/item?id=37500237 If you want to monitor your own network I’ve heard good things about the pi-hole project https://pi-hole.net/blog/2017/02/22/what-really-happens-on-your-network-find-out-with-pi-hole/ https://pi-hole.net/blog/2017/02/22/what-really-happens-on-y...