When it comes to network recon, arp-scan allows you to collect device intel quickly and stealthily.

Use Zabbix to keep tabs on all your machines across the network.

If you are looking for an audio editing and creation tool, Audacity lets you create and edit professional audio files at no cost, all while using your existing hardware.

The trickle command-line utility helps you shape network traffic.

What cannot be measured cannot be improved. Netdata lets you measure almost anything – at least as long as it's about the performance and health of a Linux computer.

Connect multiple protocols and servers together on your IoT projects.

Wireshark fills the gap between security and system administration for those who need to know more about what’s flowing through the wires or over the airwaves in the corporate network.

Use the browser-based Cockpit tool to monitor and administer multiple Linux servers without leaving your desk.

Use Cowrie as a honeypot to capture attack data and learn more about your attacker's methods.

The Scapy packet manipulation program lets you analyze and manipulate packets to create incident response reports or examine network security.