Let’s see how we are going to install Nagios on Ubuntu 20.04 LTS machine. And displays the web output using current statuses notifications and problem history log file etc. These problematic activities include HTTP, SSH, FTP fails, other malfunction and critical errors, etc.
The way it works can be described in the following manner: Nagios sets up security protocols on the different nodes in a network to detect any suspicious activity and notifies the users via an automatic SMS. Nagios also keep tabs on networking details(using TCP port, SMTP, POP3, HTTP, NNTP, PING, etc.) With Nagios, we can be vigilant of any critical activities and events of software malfunctions by sending automated alerts to the admins and prevent further damages. Nagios is an open-source monitoring tool that was designed to serve the purpose of monitoring the different networking apps, their sources, and various Linux based devices.
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