ddos-mitigation

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haproxy /haproxy

Star6.1k

HAProxy Load Balancer's development branch (mirror of git.haproxy.org)

caching http ipv6 https high-performance proxy cache http2 load-balancer reverse-proxy haproxy high-availability fastcgi proxy-protocol ddos-mitigation tls13

UpdatedNov 5, 2025
C

pavel-odintsov /fastnetmon

Star3.6k

Very fast DDoS sensor with sFlow/Netflow/IPFIX/SPAN support

fastnetmon ddos sflow netflow netmap ipfix pcap dos juniper cisco mikrotik analyzer ddos-reporter ddos-mitigation ddos-sensor ddos-monitor ddos-detector netflow-collector ddos-defender attack-detector

UpdatedOct 29, 2025
C++

mCaptcha /mCaptcha

Star2.4k

A no-nonsense CAPTCHA system with seamless UX | Backend component

rust privacy captcha self-hosted spam-protection ddos-mitigation proof-of-work self-host ddos-protection actix-web mcaptcha

UpdatedOct 7, 2025
Rust

altcha-org /altcha

Star1.7k

GDPR, WCAG 2.2 AA, and EAA compliant, self-hosted CAPTCHA alternative with PoW mechanism.

recaptcha captcha svelte wcag spam-prevention spam-protection antispam spam-filtering spam-detection ddos-mitigation proof-of-work captcha-alternative ddos-protection webcomponent hcaptcha spam-api

UpdatedOct 26, 2025
JavaScript

AltraMayor /gatekeeper

Star1.5k

The first open-source DDoS protection system

ddos dpdk ddos-mitigation anti-ddos ddos-protection

UpdatedNov 5, 2025
C

A Anti-DDoS script to protect Nginx web servers using Lua with a HTML Javascript based authentication puzzle inspired by Cloudflare I am under attack mode an Anti-DDoS authentication page protect yourself from every attack type All Layer 7 Attacks Mitigating Historic Attacks DoS DoS Implications DDoS All Brute Force Attacks Zero day exploits Soc…

javascript html security protection ddos dos lua exploit waf traffic cloudflare ddos-attacks denial-of-service nginx-lua ddos-mitigation anti-ddos antiddos ddos-attack distributed-denial-of-service anti-ddos-script

UpdatedNov 3, 2025
Lua

EtherDream /freecdn

Star1k

A front-end CDN based on ServiceWorker

web service-worker cdn network proxy javascipt ddos-mitigation web-image avif-image

UpdatedJun 7, 2022
JavaScript

gamemann /XDP-Firewall

Sponsor

Star739

A firewall that utilizes the Linux kernel's XDP hook. The XDP hook allows for very fast network processing on Linux systems. This is great for dropping malicious traffic from a (D)DoS attack. IPv6 is supported with this firewall! I hope this helps network engineers/programmers interested in utilizing XDP!

linux fast security ddos dos kernel network firewall ddos-attacks denial-of-service ebpf xdp bpf ddos-mitigation anti-ddos ddos-protection fw dos-protection dos-attack distributed-denial-of-service

UpdatedOct 15, 2025
C

kyprizel /testcookie-nginx-module

Star524

simple robot mitigation module using cookie based challenge/response technique. Not supported any more.

nginx ddos ddos-mitigation nginx-module

UpdatedOct 14, 2022
C

duy13 /vDDoS-Protection

Star508

Welcome to vDDoS, a HTTP(S) DDoS Protection Reverse Proxy. Thank you for using!

ddos reverse-proxy ddos-attacks ddos-detection ddos-mitigation anti-ddos ddos-protection antiddos vddos-proxy-protection recaptcha-robot-challenge http-denial-of-service-tools robot-mitigator cookie-challenge-response http-challenge-response vddos

UpdatedDec 17, 2024
Shell

RuiSiang /PoW-Shield

Star390

Project dedicated to fight Layer 7 DDoS with proof of work, with an additional WAF and controller. Completed with full set of features and containerized for rapid and lightweight deployment.

nodejs security typescript ddos proxy-server waf cybersecurity spam-protection koa2 netsec spam-filtering network-security ddos-mitigation proof-of-work ddos-protection

UpdatedOct 24, 2025
TypeScript

prosopo /captcha

Star345

Protect your website from bots with Prosopo Procaptcha

security spam privacy recaptcha captcha spam-protection antispam spam-detection ddos-mitigation bot-detection proof-of-work captcha-alternative self-host ddos-protection polkadot invisible-captcha human-verification hcaptcha procaptcha frictionless-captcha

UpdatedNov 5, 2025
TypeScript

EtherDream /js-port-knocking

Star272

Web 端口敲门的奇思妙想

javascript security ddos-mitigation portknocking

UpdatedOct 22, 2020
HTML

fnzv /net-Shield

Star253

An Easy and Simple Anti-DDoS solution for VPS,Dedicated Servers and IoT devices - Beta

linux nginx proxy firewall iptables ddos-detection ddos-mitigation antiddos

UpdatedNov 9, 2021
Go

0vm /NetDeflect

Star155

Easy to use DDoS mitigation with real-time traffic analysis, automatic attack pattern detection, IP blocking via iptables/blackhole routing, and Discord alerts. Detects and mitigates network floods, reflection attacks, and protocol abuse.

python linux ddos iptables cybersecurity traffic-filtering network-security ddos-mitigation anti-ddos ddos-protection security-tools packet-analysis ddos-attack real-time-monitoring discord-notification auto-detection

UpdatedSep 26, 2025
Python

mintyYuki /antiddos

Star131

Simple script against most network threats.

linux security attack firewall netfilter ddos-mitigation anti-ddos ddos-protection nftables antiddos anti-ddos-protection layer4 anti-ddos-script ddos-defense

UpdatedMay 15, 2025
Shell

CleanTalk /anti-ddos-lite

Star125

Anti-DDoS-Lite (Anti-Crawler app) is a small PHP app to protect your site against DDoS attack.

javascript bot php ddos verification ddos-attacks ddos-mitigation ddos-protection human-verification

UpdatedJul 18, 2025
PHP

wirefalls /geo-nft

Star121

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.