Nagios is an open-source IT infrastructure monitoring solution that helps businesses monitor the health and performance of servers, networks, applications, and IT systems. It provides real-time alerts, performance metrics, and system health checks, ensuring the availability and reliability of critical systems. Nagios is widely used in IT operations, data centers, and network administration to ensure smooth business operations.

Features of Nagios:

• Real-time monitoring of servers, networks, and applications.
• Customizable alerts and notifications for system issues.
• Powerful plugin support for extending functionality.
• Comprehensive reporting and performance metrics for proactive management.

To access the Nagios web interface, run http://your-domain-ip/8080

For Nagios credentials, run $ cat /var/www/credentials.txt on your VM.

Disclaimer: Nagios is an open-source project released under the GPL license. It is developed and maintained by the Nagios community and contributors. Nagios is provided "as is," without any warranty, and is not affiliated with, endorsed by, or sponsored by any specific company beyond its maintainers.