Single Packet Authorization > Port Knocking

A web client port-scanner written in GO, that supports the WASM/WASI interface for Browser WebAssembly runtime execution.

Layer 4 Single Packet Authentication Linux kernel module utilizing Netfilter hooks and kernel supported Berkeley Packet Filters (BPF)

Authenticating port knocker - Written in Rust

UDP port knocking suite with HMAC-PSK authentication.

🚪👊 Yet another port knock client

Hybrid Port Knocking System

Not your average port knocker. A web-based service written in pure PHP that opens protected TCP and UDP ports in response to encrypted requests from a correctly configured client for a limited but renewable time period. MIT or LGPL.

Port Knocking attack tool

Will's custom bag of pentesting tools.

🚪 A port knocking client written in Go

Encrypted Port Knocking Tool

Port-knocking client with multiple hosts support

Enable/Disable ports on windows using sequences of SYN packets sent to defined ports

A port knocking daemon

Bash script for knocking on TCP and UDP ports. No dependencies.

A simple port knocker. Given a host, looks up its port sequence and knocks on it.

A simple Python port knocker

Improving SSH security by changing Port#, Changing IP Table Rules, Allowing only certain Port numbers, Installing Port Knocking

A port knocking program that works off of periodically changing sequences.