Zeek is a powerful network analysis framework that is much different from the typical IDS you may know.

Capturing, analysing and responding to cyber attacks

Real-time network traffic monitor

sACNView provides a tool for monitoring and sending the Streaming ACN lighting control protocol used for lighting control in theatres, TV studios and architectural systems

Toolkit for working with network data

Nayuki's updated version of NetPerSec.

Sniff plaintext account/password/cookie on router

QT based app for real-time data visualization from serial or network port

A small library for reading the performance counters of all InfiniBand devices in a network

Low Level Network Monitor - Proof of Concept application, which detects hidden TCP network communication produced by rootkit Pitou.

ESP8266 Based WiFi Connectivity monitor. This Script Ping For Google Public DNS and report the ping time on Attached I2C display. If there is any connectivity issue display it and blink LCD backlight if it's enabled

A terminal based monitoring tool for InfiniBand networks using Detector (https://github.com/hhu-bsinfo/detector)

Napatech packet source plugin for Bro

WhyTheFuckIsMyNetworkSoSlow is a network performance analysis tool, making it easy to quickly examine a network and see what is wrong, and to evaluate longer term trends.

A graphical network speed meter desktop widget for MS Windows

Small terminal application to check if given hosts are reachable.

This repository by Sequoia Heights MS offers an integrated solution featuring a probe and client. Our blocklists, sourced from our honeypot network, are freely available. We provide a sync client for up-to-date protection and a probe tool for contributing new data.

An Arduino based ESP8266 TWAMP Light reflector.

Network Probe Selection Problem