Firewall News and Articles

Filter rules for firewalls can be tricky. As the successor to iptables, nftables simplifies the process of creating and maintaining firewall rules.

OpenSnitch, an application-based firewall, protects you from unwanted data leaks by letting you set customized rules for all your applications.

Canonical's ufw lets you configure your firewall without the hassle of the iptables tool, while reducing the risk of misconfiguration and simplifying maintenance.

For maximum security, you'd better watch traffic in both directions. This hands-on workshop takes you through the steps of setting up firewalls for outgoing as well as incoming traffic.

Managing a firewall can be a hassle, but it’s worse to manage a breach because you didn’t have one.

The nftables firewall utility offers a simpler and more consistent approach for managing firewalls in Linux.

First the fun, then the pleasure: This month, we look at a TCP that administrators have to take seriously, followed by some URL fun.