How to Install Nagios 4 on Linux Mint 19 LTS Easy Guide

Getting Started

8. 8. Configuring Nagios

   After make the Post-Installation Configuration.

   sudo cp -R contrib/eventhandlers/ /usr/local/nagios/libexec/

   sudo chown -R nagios:nagcmd /usr/local/nagios/libexec/eventhandlers

   Again to Check Nagios Installation.

   sudo /usr/local/nagios/bin/nagios -v /usr/local/nagios/etc/nagios.cfg

   And to Enable the Web Interface on Apache.

   sudo /usr/bin/install -c -m 644 sample-config/httpd.conf /etc/apache2/sites-enabled/nagios.conf

   sudo a2enmod cgi

   sudo service apache2 restart

9. 9. Running Nagios

   Finally, to Start up Nagios
   Simply play:

   sudo /etc/init.d/nagios start

   And so to Stop it:

   sudo /etc/init.d/nagios stop

10. 10. Accessing Nagios Web Interface

    Again to Create a nagiosadmin Web User with Pass
    Issue:

    sudo htpasswd -c /usr/local/nagios/etc/htpasswd.users nagiosadmin

    Take Note of the Password!

    Now to Access the Nagios Web Interface.

    http://localhost/nagios

    User: ‘nagiosadmin’
    Pass: That you Setup Before

11. 11. Installing Nagios Plugins

    Download and Install Nagios Plugins

    Nagios Plugins Installation

    Nagios Plugins Setup