Total Network Inventory Alternatives for Linux

Nmap is a free and open-source utility for network discovery and security auditing. It utilizes raw IP packets to determine what hosts are available on the network, what services (application name and version) those hosts are offering, what operating systems (and OS versions) they are running, what type of packet filters/firewalls are in use, and dozens of other characteristics. It is command-line driven, though official GUI versions are also available.

Nagios Core is a powerful, open-source monitoring system designed to keep a vigilant eye on your IT infrastructure. It provides comprehensive surveillance of systems, networks, and hardware, ensuring critical services remain operational and alerting administrators to potential issues before they impact end-users.

Hardinfo is a classic system information and benchmarking tool for Linux. It provides comprehensive details about your hardware and operating system, coupled with various benchmarks to gauge system performance.

Pulseway is a comprehensive real-time IT monitoring and management software solution designed for modern IT teams and MSPs, accessible from anywhere via mobile or web.