I use little snitch on my Mac. I’ve always hated how it wasn’t available for Linux. I understand that some people don’t like proprietary software, but there have been no cases of anyone suggesting this developer is untrustworthy. I know that’s a gamble, but even with open source software… Is anyone Actually looking through that code themselves? No.

Having the software installed has pointed out how many applications actually ask for an Internet connection. It tells you exactly where they’re going, And you can block specific domains and IP addresses from specific applications. It gets very fine grain.

Anyway, I like it and I think everybody should be running at least open snitch.