Iptables Essentials: Common Firewall Rules and Commands.

• UpdatedNov 19, 2024

An execution engine for Wireshark-like filters

• UpdatedOct 9, 2025
• Rust

Windows Firewall Notifier extends the default Windows embedded firewall by allowing to handle and notify about outgoing connections, offers real time connections monitoring, connections map, bandwidth usage monitoring and more...

• UpdatedJul 19, 2025
• C#

Data-Shield IPv4 Blocklist provides an additional layer of security to reduce the number and attack surface of your exposed assets (web applications, websites, DMZs, public IPs, etc.), reducing the recon phase and exposure, etc.

• UpdatedNov 5, 2025
• Shell

Automated OWASP CRS and Bad Bot Detection for Nginx, Apache, Traefik and HaProxy

• UpdatedSep 24, 2025
• Python

🚦 Block malicious crawlers with Cloudflare Firewall Rules

• UpdatedApr 17, 2020

Rules of Cloudflare Firewall for Block Bad Bot and Exploiting

• UpdatedSep 15, 2025

PowerShell scripts to automatically create rules for Windows firewall

• UpdatedNov 5, 2024
• PowerShell

IP leak prevention for OpenVPN

• UpdatedDec 17, 2018
• Shell

IP list full of bad IPs - Updated every 2H

• UpdatedNov 5, 2025
• Python

Minimal Firewall is a portable Windows firewall frontend that alerts users to internet connections without requiring custom kernel modifications or disabling core isolation, striking a balance between Window Defender's security and Simplewall's functionality.

• UpdatedOct 31, 2025
• C#

Ansible role for hardening Linux

• UpdatedJul 13, 2024
• Jinja

开源威胁情报，包含3个组件，2个查询API，1个前端，300万+恶意IP，Go +Redis开发的威胁情报查询API性能良好，恶意IP一直在更新。

• UpdatedOct 14, 2022
• PHP

Bash script to create nftables sets of country specific IP address ranges for use with firewall rulesets. The project provides a simple and flexible way to implement geolocation filtering with nftables. It can be a useful tool to reduce the chance of malware, ransomware and phishing attempts as well as mitigating the effects of DDoS attacks.

• UpdatedNov 6, 2023
• Shell

This repository contains Malicious Indicator of Compromise (IOC) blocklist for MISP, firewall which is vital for cybersecurity professionals to enhance threat detection and improve incident response capabilities.

• UpdatedSep 17, 2025
• Python

Block hosts that attempt to bruteforce SSH using the journald API.

• UpdatedAug 7, 2025
• C

Application allows to block Internet access to other applications / Приложение позволяет заблокировать доступ в интернет другим приложения

• UpdatedJun 28, 2025
• Pascal

🧱 Ban subnets using Windows Firewall rules after they make enough incorrect login attempts, as indicated by Windows Event Log records.

• UpdatedOct 13, 2025
• C#

Anti DDOS Protection that will stop DDOS from taking down your Linux Server

• UpdatedMar 19, 2020
• Shell

DirectFire Firewall Converter - Network Security, Next-Generation Firewall Configuration Conversion, Firewall Syntax Translation and Firewall Migration Tool - supports Cisco ASA, Fortinet FortiGate (FortiOS), Juniper SRX (JunOS), SSG / Netscreen (ScreenOS) and WatchGuard (support for further devices in development). Similar to FortiConverter, Sm…

• UpdatedMar 6, 2022
• Python