Linux Firewall

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An Introduction to UFW, Ubuntu’s ‘Uncomplicated’ Firewall


Iptables are the cornerstone for configuring firewalls and managing network traffic in Linux. For the uninitiated, iptables can be complex and intimidating. However, most Linux distributions provide simpler front-end interfaces to manage iptables rules. Ubuntu's Uncomplicated Firewall (UFW) offers a straightforward way to configure firewall settings without diving into intricate iptables commands.

The Open Source Firewall – IPFire 2.27 – Core Update 173 Released: What’s New?


Get ready to experience the best of IPFire 2.27 – Core Update 173! Not only is this update introducing support for 4G and 5G modems that utilize the QMI interface, but also includes a kernel freshly picked from 6.1’s stable series as well as an array of package updates, security enhancements, and bug fixes so you can be sure your device is always up-to-date with the latest improvements!

IPFire Linux Firewall Now Supports exFAT, pe


IPFire 2.27 Core Update 161 has been released as a new maintenance update to the hardened open-source GNU/Linux distro that primarily performs as a router and a firewall. The release brings exFAT support to IPFire and boosts the intrusion prevention system's performance.

BPF-Based Linux Firewall "bpfilter" Shows Impressive Performance Potential


Generating much excitement back in 2018 was bpfilter for the potential to better Linux's firewall and packet filtering by making it more robust and performance. Recently work on this BPF-based firewall solution was renewed and the performance potential over iptables and nftables is looking very good for the future with more feature work planned around new matches and targets, containers integration, in-place upgrades support, privilege separation, and BPF code optimization support.