Iptables Essentials: Common Firewall Rules and Commands.

An execution engine for Wireshark-like filters

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...

Data-Shield IPv4 Blocklist Community provides an official, curated registry of IPv4 addresses identified as malicious. Updated continuously, this resource offers vital threat intelligence to bolster your Firewall and WAF instances,...

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

Rules of Cloudflare Firewall for Block Bad Bot and Exploiting

IP list full of bad IPs - Updated every 2H

🚦 Block malicious crawlers with Cloudflare Firewall Rules

A lightweight frontend for Windows Firewall. Harden your security with Lockdown Mode, real-time connection alerts, and rule auditing. No custom drivers or telemetry. Block "phoning home" and stay private.

PowerShell scripts to automatically create rules for Windows firewall

IP leak prevention for OpenVPN

Ansible role for hardening Linux

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。

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.

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.

Get Bitdefender Total Security Ultimate on GitHub: a complete, high-performance toolkit for seamless malware defense and professional protection. #Antivirus

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

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

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

An advanced, ultra-lightweight firewall orchestrator for Linux. SysWarden integrates Data-Shield IPv4 blocklists, Geo-Blocking, Spamhaus ASN, Fail2ban, and a WireGuard VPN to proactively block 98.2% of malicious traffic. Secure your servers and Docker containers with a near-zero memory footprint.