firewall

A fast reverse proxy to help you expose a local server behind a NAT or firewall to the internet.

一款轻量级、高性能、功能强大的内网穿透代理服务器。支持tcp、udp、socks5、http等几乎所有流量转发，可用来访问内网网站、本地支付接口调试、ssh访问、远程桌面，内网dns解析、内网socks5代理等等……，并带有功能强大的web管理端。a lightweight, high-performance, powerful intranet penetration proxy server, with a powerful web management terminal.

The easiest, and most secure way to access and protect all of your infrastructure.

SafeLine is a self-hosted WAF(Web Application Firewall) / reverse proxy to protect your web apps from attacks and exploits.

OpenSnitch is a GNU/Linux interactive application firewall inspired by Little Snitch.

A lightweight and high-performance reverse proxy for NAT traversal, written in Rust. An alternative to frp and ngrok.

🏔 Love Freedom - ❌ Block Mass Surveillance

OpenGFW is a flexible, easy-to-use, open source implementation of GFW (Great Firewall of China) on Linux

Enterprise-ready zero-trust access platform built on WireGuard®.

Simple tool to configure Windows Filtering Platform (WFP) which can configure network activity on your computer.

Everything about Web Application Firewalls (WAFs) from Security Standpoint! 🔥

lanproxy是一个将局域网个人电脑、服务器代理到公网的内网穿透工具，支持tcp流量转发，可支持任何tcp上层协议（访问内网网站、本地支付接口调试、ssh访问、远程桌面、http代理、https代理、socks5代理...）。技术交流QQ群 736294209

To fix the Docker and UFW security flaw without disabling iptables

Main repository for pfSense

A full functional WiFi Repeater (correctly: a WiFi NAT Router)

Block spying and tracking on Windows

DNS over HTTPS / DNS over Tor / DNSCrypt client, WireGuard proxifier, firewall, and connection tracker for Android.

OPNsense GUI, API and systems backend

No-root network monitor, firewall and PCAP dumper for Android

AFWall+ (Android Firewall +) - iptables based firewall for Android