Control outgoing traffic on Linux: Little Snitch is here

What is phoning home on Linux? With the Little Snitch firewall, applications can now also be monitored outside of macOS.
ZDNet

Yes, you need a firewall on Linux - here's why and which to use

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CRN

Build This Cheap But Effective Firewall

In this Recipe, I'll explain both the options for firewall protection and the differences between hardware and software implementations. By the end, you should be able to point a client to the ...
Small Business Computing

5 Best Open Source Firewalls

Open source operating systems like Linux, FreeBSD, and OpenBSD have tons of built-in networking and security features, so they are natural platforms for building security products. And most commercial ...
Houston Chronicle

The Difference Between a Hardware Firewall and a Software Firewall

Firewalls, both hardware and software, protect computers from hackers and other online threats by blocking dangerous pieces of data from reaching the system. While hardware firewalls offer ...
Ars Technica

Software Firewall Distros

I'm trying really hard to get a new firewall for our network at work. Right now, I'm looking for a 3rd party Linux based firewall, like the one Astaro provides. So, I'm hoping you can give me some ...