F

firewall

A modern, lightweight Linux firewall tool for defending against CC and DDoS attacks.

Configure your OpenWrt router to only allow traffic to/from whitelisted sites

Network configuration files, lab exercises, practical documentation, and assignments for the IT Technology program at UCL.

TUI for viewing and analysing OPNsense firewall logs

Network firewall blocking 94 surveillance domains (200+ IPs). Protects against stalkerware (80-90% effective), ICE contractors, DoH providers, and trackers. Open source, MIT licensed. English/Spanish/Arabic.

A WordPress plugin to monitor 404 requests and block abusive IPs at the Cloudflare edge using Access Rules (works on all plans, including Free, via Global API Key).

Ansible role to install and configure the firewall and fail2ban

copied from github

🐚 Configurable packaged firewall for Arch Linux

NetRules es un motor modular diseñado para interpretar reglas declarativas en formato .nrs, permitiendo bloquear, redirigir o permitir tráfico HTTP/IP según condiciones definidas por el desarrollador. Su arquitectura está pensada para trazabilidad, extensibilidad y gobernanza estricta.

A rust library to create and manage nftables firewalls

GeoIpFromFWLog selects blocked IP addresses from the MS Windows firewall log and returns for them the countries they belong to or their entire networks. With it, the administrator can easily resolve which countries the traffic was blocked from, and can quickly determine the network ranges to add to the list of allowed addresses (scope) in a rule on the firewall.

Secure DNS(also known as DNS firewall and protective DNS) with ad-blocking, threat protection, and encrypted DoH, DoT, and DoQ support for enhanced privacy and security.

A modern GNU/Linux firewall for GNOME. https://douaneapp.com/

Programmatically interact with firewalld using Go.

https://mbukatov.gitlab.io/ocp-network-split

[proven] Blocks DNS queries based on whitelists (or blacklists)