SafeLine is a self-hosted WAF(Web Application Firewall) / reverse proxy to protect your web apps from attacks and exploits.
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Daemon to ban hosts that cause multiple authentication errors
Open-source IDS/IPS, WAF and bot detection for Linux, Windows, Docker and Kubernetes, with a crowdsourced blocklist of malicious IPs.
OpenSnitch is a GNU/Linux interactive application firewall inspired by Little Snitch.
- application-firewall
- firewall
- linux
- networking
🏔 Love Freedom - ❌ Block Mass Surveillance
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
LuLu is the free open-source macOS firewall
🛡️ Open-source and cloud-native Web Application Firewall (WAF)
A very powerful and friendly nginx base on lua-nginx-module( openresty ) which provide WAF, Control Panel, and Dashboards.
No-root network monitor, firewall and PCAP dumper for Android
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
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
Translatedapfree-wifidog is a high-performance captive portal solution that serves as a gateway between your wireless networks and the Internet. Optimized for both HTTP and HTTPS traffic, it ensures secure border control while enabling seamless user authentication and efficient network management. Buy the services in the link below to support my open source work.
- openwrt
- libevent
- c
- wifidog
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.
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)
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
An EBPF based IPv4/IPv6 firewall with integrations for OpenZiti Zero-Trust Framework edge-routers and tunnellers
Manage iptable rules for the private interface on DigitalOcean droplets
- digitalocean
- iptables
Intrusion Prevention System (IPS) for Secure Shell (SSH)