Nagios QuickStart on Linux Mint 18.x LTS

April 5th, 2017 by thelinuxevangelist

Getting-Started with Nagios on Mint 18.x LTS




Hello Mint User! This Tutorial Shows You Step-by-Step How-to Install and Getting-Started with Nagios 4 Monitoring System for Linux Mint 18.x Sarah/Serena… LTS 32/64bit Mate/Cinnamon/Kde/Xfce Desktop.

Nagios is a powerful Monitoring system that enables organizations to identify and resolve IT infrastructure problems before they affect critical business processes.

Nagios Features Workflow Management:

  • Monitoring: IT staff configure Nagios to monitor critical IT infrastructure components
  • Alerting: Nagios sends alerts when critical infrastructure components fail and recover
  • Response: IT staff can acknowledge alerts and begin resolving outages and investigating security alerts immediately
  • Reporting: Reports provide a historical record of outages, events, notifications, and alert response for later review
  • Maintenance: Scheduled downtime prevents alerts during scheduled maintenance and upgrade windows
  • Planning: Trending and capacity planning graphs and reports allow you to identify necessary infrastructure upgrades before failures occur.
Nagios QuickStart on Linux Mint 18.x LTS - Featured
  1. Open a Shell Terminal emulator window
    (Press “Enter” to Execute Commands)

    Installing Nagios Core on Linux Mint 18.x LTS - Open Terminal
  2. Install the Required Packages

    sudo su

    If Got “User is Not in Sudoers file” then Look: Solution

    apt install php7.0-gd libgd2-xpm-dev build-essential \
    apache2 libapache2-mod-php7.0
  3. Adding nagios User and Groups
    Add the nagios User:

    useradd nagios

    Make the nagios Group:

    groupadd nagios

    Add the nagios user to the group:

    /usr/sbin/usermod -G nagios nagios

    Create a new nagcmd group for allowing external commands to be submitted through the web interface:

    groupadd nagcmd

    Add both the nagios & apache users to the Group:

    usermod -a -G nagcmd nagios
    usermod -a -G nagcmd www-data

    Last Achieve the SuperUser Session:

    exit
  4. Download Latest Nagios Core Linux Source:

    Nagios Core tar.gz Archive
  5. Double-Click and Extract Nagios Core into /tmp

    Getting-Started with Nagios Core for Linux Mint 18.x LTS - Extracting Nagios

    Or from Command Line:

    tar zxvf ~/Downloads/nagios*.tar.gz -C /tmp/
  6. Compiling and Installing Nagios Core on Linux Mint

    cd /tmp/nagios*
    ./configure --with-command-group=nagcmd
    make all
    sudo su

    If Got “User is Not in Sudoers file” then Look: Solution

    make install
    make install-init
    make install-config
    make install-commandmode
  7. Installing Nagios Core Web Interface

    mkdir -p /etc/httpd/conf.d/nagios.conf
    make install-webconf
  8. Post-Installation Configuration

    cp -R contrib/eventhandlers/ /usr/local/nagios/libexec/
    chown -R nagios:nagcmd /usr/local/nagios/libexec/eventhandlers
  9. Checking Nagios Installation

    /usr/local/nagios/bin/nagios -v /usr/local/nagios/etc/nagios.cfg
  10. Enabling the Web Interface on Apache

    /usr/bin/install -c -m 644 sample-config/httpd.conf /etc/apache2/sites-enabled/nagios.conf
    a2enmod cgi
    service apache2 restart
  11. Starting Nagios

    /etc/init.d/nagios start
  12. Create a nagiosadmin Web User with Pass

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

    Take Note of the Password!

    exit
  13. Access the Nagios Web Interface

    http://localhost/nagios

    User: ‘nagiosadmin’
    Pass: That You Setup Before

  14. Download and Install Nagios Plugins:

    Nagios Plugins Installation

Nagios 4 Quick-Start on Linux Mint 18.x LTS - Nagios Web Interface

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