How to install sw-nginx-module-tcp-fingerprint on Debian

Passive TCP SYN fingerprint (p0f-style) and TCP/TLS RTT variables

Vendor: GetPageSpeed https://github.com/studio-vitalyn/ngx-tcp-fingerprint

Availability

Compare package tracks by distribution and architecture. Checkmarks show the architectures available in each repository channel.

Distro	Channel	amd64	Version
Debian 13 (trixie)	Base		1.30.6.1+0.1.0+p18.0.82.1.t261027.1716
Debian 12 (bookworm)	Base		1.30.6.1+0.1.0+p18.0.82.1.t261027.1716

Description

Exposes a passive fingerprint of the client's TCP/IP stack, read from the SYN that opened the connection (TTL, window, MSS, window scale, option layout and header quirks, in the tradition of p0f), as nginx variables, plus the TLS 1.3 handshake round trip next to the kernel's TCP RTT to spot tunnelled clients. A Windows User-Agent arriving on a Linux SYN, an MSS that tells the link, or a TLS RTT well above the TCP one are strong bot and proxy signals; combine them with JA3/JA4 TLS fingerprints for layered bot mitigation. The module only reports: scoring, logging or challenging is up to the configuration. Linux only (TCP_SAVE_SYN); variables are empty on HTTP/3.

Built for Debian.

Install

Base Debian 12, 13

sw-nginx-module-tcp-fingerprint on Debian 12 (bookworm), 13 (trixie)

curl -fsSL https://extras.getpagespeed.com/release-latest.deb -o /tmp/getpagespeed-release.deb
sudo apt-get install -y /tmp/getpagespeed-release.deb
rm /tmp/getpagespeed-release.deb
sudo apt-get update
sudo apt-get install -y sw-nginx-module-tcp-fingerprint

Frequently asked questions

How do I install sw-nginx-module-tcp-fingerprint on Debian?

Add the GetPageSpeed repository, then install the sw-nginx-module-tcp-fingerprint package with your system package manager.

Which Debian versions is sw-nginx-module-tcp-fingerprint available for?

sw-nginx-module-tcp-fingerprint is available for Debian 12, 13.