It’s an HN “read the room” submission. It’s contextually related to earlier discussion about Apple Photos phoning home without a direct reference to it.

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=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-y...

That’s long outdated information.

LS can easily block all Apple phone-home. (Some must be unblocked, specifically gs.apple.com, for UpdateBrainService, for OS updates to work.)

I have a few macs that don’t communicate with Apple at all except during system updates.

If little snitch worked on ios...

I'm pretty sure the only reason it works on macos at all was that it got in early. I believe Apple periodically tries to hobble it but there is pushback.

And it's a very old and well known software..

I used it years ago but did not know they added all these features. I enjoyed seeing this post here