Prometheus - An open-source systems monitoring and alerting toolkit.
Cisco DNA Center - Find and resolve network issues with Cisco DNA Center. Provides software-based network automation and assurance. Control and manage intent-based networks.
Nagios - Complete monitoring and alerting for servers, switches, applications, and services
Nmap - Nmap Free Security Scanner, Port Scanner, & Network Exploration Tool. Download open source software for Linux, Windows, UNIX, FreeBSD, etc.
StatsD - Simple daemon for easy stats aggregation.
Auvik - Auvik’s network infrastructure RMM gives IT service providers better visibility, documentation, and...