Nagios: Open-source monitoring solution Nagios is an open-source monitoring solution, now included as part of the robust Nagios Core Services Platform (CSP). It delivers end-to-end visibility across the entire IT infrastructure, covering everything from websites and DNS to servers, routers, switches, workstations, and critical services. It helps organizations proactively detect issues, minimize downtime, and ensure the reliability of their systems. Nagios Core features Nagios offers a set of features designed to keep networks and systems running smoothly. It provides monitoring of network services such as SMTP, POP3, HTTP, and PING, as well as host resources like processor load and disk usage. Through its plugin interface, users can extend monitoring capabilities with custom-developed…