[Day 3] 4. Monitoring Health of a Machine

The goal is to monitor the health of a machine and send the collected statistics to another server. The key parameters to monitor include:

To monitor the health of a machine, you need to install and configure specific software. One such tool is Nagios.

Nagios:

Nagios is used for remote monitoring of system health.
It cannot work by itself. It requires additional plugins (like SNORT requires winpcap library) to function.
These plugins interact with internal services to fetch the required data.

Nagios is a CLI tool, which means the output might not be visually friendly for easy interpretation.

To make the data more accessible, you'll run Nagios on an Apache server so you can view the health statistics through a web interface.

Networking Setup:

The two machines (one running Nagios and the other being monitored on) need to be able to ping each other.
Firewalls must be off on both machines to allow the ping.

This setup enables remote monitoring of the machine's health.

Note:
You can visualize the system health through the Nagios web interface once it is set up correctly.

!4. nagios.png