I have a Ubiquiti Ethenret and WiFi network and their software will give me the discovery capabilities, and my custom OpenBSD router gives me the traffic inspection features (using Darkstat). Source: over 2 years ago

A friend of mine is a tech wizard, and he hooked me up with a home built router that uses pfSense, which comes with a program that does what you're asking for - darkstat. Source: over 3 years ago

I do have darkstat monitoring traffic on my egress interface. I also block access to UDP port 53 from untrusted hosts (I will change it to silently redirect to my official unbound DNS servers later). Source: over 3 years ago

* Homebrew - Package manager (kinda like apt/rpm on Linux). * Secretive - Stores SSH keys in the secure enclave [https://github.com/maxgoedjen/secretive] * Hazel - File automations [https://www.noodlesoft.com/] * Arq - Excellent backup software for local and/or remote backups [https://arqbackup.com/] * ChronoSync - File synchronization on steoroids [https://www.econtechnologies.com/chronosync/overview.html] *... - Source: Hacker News / 24 days ago

The first two can be handled by firewall. Little Snitch for example: https://obdev.at/products/littlesnitch/index.html. Source: over 1 year ago

If you want more control over outgoing traffic, there’s commercial stuff like Little Snitch or the similar free tool LuLu from Objective-See. Source: almost 2 years ago

Objective Development's Little Snitch. It's been the first piece of software I've installed on every Mac I've owned in the last 20 years. Source: over 2 years ago

Little Snitch? https://obdev.at/products/littlesnitch/index.html. Source: almost 3 years ago