Repository Index

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

• firewall
• http-flood
• security
• sql-injection

Daemon to ban hosts that cause multiple authentication errors

• linux
• macos
• security
• intrusion-prevention

Open-source IDS/IPS, WAF and bot detection for Linux, Windows, Docker and Kubernetes, with a crowdsourced blocklist of malicious IPs.

• security
• waf
• anti-bot
• blocklist

🏔 Love Freedom - ❌ Block Mass Surveillance

• application-firewall
• dns
• firewall
• go

Make your infrastructure invisible to attackers. OpenNHP implements the Network-infrastructure Hiding Protocol (NHP): authenticate before connection, cryptographically. IETF draft.

• cybersecurity
• zero-trust
• zero-trust-network-access
• zero-trust-security

🛡️ Open-source and cloud-native Web Application Firewall (WAF)

• nginx
• modsecurity
• docker
• security

A very powerful and friendly nginx base on lua-nginx-module( openresty ) which provide WAF, Control Panel, and Dashboards.

open-appsec is a machine learning security engine that preemptively and automatically prevents threats against Web Application & APIs. This repo include the main code and logic.

• api-security
• application-security
• kubernetes
• nginx

The first open-source DDoS protection system

• dpdk
• ddos
• ddos-mitigation
• ddos-protection

Database security suite. Database proxy with field-level encryption, search through encrypted data, SQL injections prevention, intrusion detection, honeypots. Supports client-side and proxy-side ("transparent") encryption. SQL, NoSQL.

• encryption-server
• encryption
• crypto
• cryptography

Real-time network monitor + outbound firewall — see & block every connection. Privacy-first, local-first, Rust fleet agent, SIEM exports, 8 languages. / Moniteur réseau temps réel + pare-feu sortant, agent de flotte Rust, exports SIEM. 100 % local.

• cybersecurity
• d3js
• electron
• fastapi

Caddy Reverse Proxy Balancer and WAF WebUI

Open-source, auditable network gateway for homelabs, NAS and servers: DDNS, STUN traversal, port forwarding with SNI routing, reverse proxy and web server, ACME certificates, WAF, Tailscale, frp, Cloudflare Tunnel, Docker and web terminal in one binary. Runs on Docker, fnOS, OpenWrt, Linux, macOS and Windows.

• acme
• ddns
• frp
• golang

Firewall and Privatizing Proxy for Trackers, Attackers, Malware, Adware, and Spammers with Anti-Virus On-Demand and On-Access Scanning (PF, squid, privoxy, hphosts, dshield, emergingthreats, hostsfile, PAC file, clamav)

• proxy
• tracker
• firewall
• privacy-enhancing-technologies

teler-waf is a Go HTTP middleware that protects local web services from OWASP Top 10 threats, known vulnerabilities, malicious actors, botnets, unwanted crawlers, and brute force attacks.

• ids
• teler
• waf
• teler-ids

A rest application to update firewalld rules on a linux server

• firewalld
• firewalld-configuration
• golang
• rest-api

Envoy with Cilium filters

• cilium
• ebpf

Defensive mitigation and testing toolkit for PHP security vulnerabilities (CVE-2026-109618, CVE-2026-109619, CVE-2026-115560), including Apache protections and PHP hardening guidance

• cybersecurity
• defenses
• patches
• php

CetusGuard is a tool that protects the Docker daemon socket by filtering calls to its API endpoints.

• docker
• security
• container
• daemon

An EBPF based IPv4/IPv6 firewall with integrations for OpenZiti Zero-Trust Framework edge-routers and tunnellers

• ebpf
• ebpf-tc
• firewall
• ipv4

This library protects against typical web attacks. It was inspired in rack-protection Ruby gem.

• middlewares
• security
• http
• crystal

Manage iptable rules for the private interface on DigitalOcean droplets

• digitalocean
• iptables

Intrusion Prevention System (IPS) for Secure Shell (SSH)