Bank had no firewall license, intrusion or phishing protection – guess the rest

Optimizing Magic Firewall’s IP lists

Nasty Linux Netfilter Firewall Security Hole Found

New Linux Bug in Netfilter Firewall Module Lets Attackers Gain Root Access

Portmaster – Open-source network monitor and firewall

Deconstructing the Great Firewall of China (2016)

The Mind Has No Firewall (1998)

How great is the great firewall? Measuring China’s DNS censorship

My mouse driver is asking for a firewall exemption (2019)

China's Great Firewall is Blocking Around 311K Domains, 41K by Accident

HTTP/3 needs us (and other people) to make firewall changes

China’s firewall is spreading globally

Global Socket: Connect like there is no firewall. Securely

Xdp eBPF Firewall in Rust

EBPFSnitch: An eBPF based Linux Application Firewall

A New Cloudflare Web Application Firewall in Rust

A Digital Firewall in Myanmar, Built With Guns and Wire Cutters

Introducing Crowdsec: a Modernized, Collaborative Massively Multiplayer Firewall

The Great Firewall of America – censoring VPN ports via deep packet inspection

RethinkDNS – monitor app activity, block ads and firewall apps on Android

Breached Water Plant Employees Used the Same TeamViewer Password and No Firewall

Apple removes first-party firewall exemption in macOS 11.2 beta 2

Lulu – Mac open-source firewall that aims to block unknown outgoing connections

Integrating an eBPF-based firewall into the Rust-based Tezos node

Douane: Linux personal firewall with per application rule controls

Big no on Big Sur: Mullvad disallows Apple apps to bypass firewall

AWS Network Firewall – New Managed Firewall Service in VPC

Apple apps on macOS Big Sur bypass firewall and VPN connections

MacOS Big Sur reveals Apple secretly hates your VPN and firewall

Use a raspberry-pi 2 as a firewall with FreeBSD

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