Linux firewalls can be very complicated. With the help of a GUI, firewall configuration is easier. These GUIs are easy to install and free to use. A firewall is often the heart and soul of desktop ...

Little Snitch is finally on Linux. Learn how to use this eBPF firewall to monitor outbound traffic, block telemetry, and see ...

Dear readers, I appear to have set a Paranoid Penguin record—six months spent on one article series. (It has consisted of five installments, with a one-month break between the second and third pieces.

I want to implement an iptables firewall for a network that has 64 real IP hosts. What I don't want to do is change the IP ranges or subnet masks. Can you stick two NICs in a firewall with the same ...

I've been writing a multipart series on building a transparent (bridging) firewall using Linux. Specifically, I'm using the distribution OpenWrt running on a Linksys WRT54GL broadband router, a ...