On OS X I use Little Snitch. Unfortunately, it's not free.
I noticed in one of your screenshots you use LS as well, do they serve different purposes or was it just a project for fun?
I noticed in one of your screenshots you use LS as well, do they serve different purposes or was it just a project for fun?
[0] https://developer.apple.com/legacy/library/documentation/Dar...
IIRC, it is the most recently active project. As far as I can tell, the whole user-facing, interactive firewall program never really caught on in linux land.
What's so unfortunate about it?
€30 ($43 + taxes Canadian to me) that's quite enough for software maybe not excessive but any more and I'd pass on it.