🚀 Deploy #Nagios on #Ubuntu #VPS

This guide walks through deploying Nagios Core on an Ubuntu VPS, from system prep to web access, plugins, hosts/services, and hardening. Commands target Ubuntu 22.04 LTS (works similarly on 20.04/24.04).
What You’ll Build

A Nagios Core #monitoring server
Web UI secured with HTTP auth
Standard monitoring plugins
Example host & service checks
Basic ...
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