Multi-protocol passive fingerprinting library: TCP/HTTP (p0f-style) + TLS (JA4-style) analysis in Rust

p0f v3 with impersonation spoofing, written in Python - Accurately guess the OS of a packet with passive fingerprinting.

Network Tools

Purely passive OS and application fingerprinting system

modernized and C99 compliant port of p0f (Passive OS fingerprinting)

High-performance reverse proxy that forwards the client TLS (JA4), HTTP/2 (Akamai) and TCP SYN (p0f via eBPF/XDP) signatures as headers to backend via HTTP for bot detection and traffic analysis

TCP Fingerprinting of email senders.

Floodspark Counterespionage Firewall (CEF) helps you record and block or honeypot reconnaissance or otherwise illegitimate traffic. CEF is like a web application firewall (WAF) but protects against reconnaissance.

Small tool to test your network connectivity

p0f with Python.

TCP SYN packet collector for Node.js

🔍 PASSIVE OS FINGERPRINTING. Python p0f implementation. Detect hosts. Reveal OS without touching. 🕵️

Passive OS fingerprinting support for rspamd

Detecting Network Address Translation & Proxy Use

OS Fringerprinting