Wireshark
The world's foremost and widely-used network protocol analyzer, for deep packet inspection and troubleshooting.
Visit siteTools for Network Operators
Twelve battle-tested tools network operators rely on for packet analysis, discovery, bandwidth testing, monitoring, and defense — every link verified working, with the one dead redirect (OpenNMS) corrected to its current home.
Nmap
("Network Mapper") a free and open source utility for network discovery and security auditing.
Visit siteInfection Monkey
An open-source breach and attack simulation (BAS) platform that helps validate controls and identify network security gaps.
Visit siteiPerf3
A tool for active measurements of the maximum achievable bandwidth on IP networks.
Visit sitefprobe
A libpcap-based tool that collects network traffic data and emits it as NetFlow flows towards a specified collector.
Visit siteCacti
Provides a robust and extensible operational monitoring and fault management framework for users around the world.
Visit siteSnort 3
A sweeping IDS/IPS upgrade featuring enhanced performance, faster processing, and improved scalability for your network.
Visit siteAircrack-ng
A complete suite of tools to assess WiFi network security — monitoring, attacking, testing, and cracking.
Visit siteOpenNMS Horizon
An open source solution that helps you visualize and monitor everything on your local and remote networks.
Visit siteSmokePing
A deluxe latency measurement tool. It can measure, store, and display latency, latency distribution, and packet loss.
Visit siteDBot
Designed for enabling easy access to advanced security threat information for security professionals using Slack.
Visit siteSenzing
An entity resolution engine — somewhat peripheral to networking and security, but useful enough in certain situations.
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