How do I install and configure Nagios monitoring server on Ubuntu?

Posted on by David Darling

How do I install and configure Nagios monitoring server on Ubuntu?

How to install Nagios on Ubuntu 20.04

  1. Step 1: Check for the updates.
  2. Step 2: Create a user account.
  3. Step 3: Download Nagios from the official website.
  4. Step 4: Compile Nagios with Ubuntu 20.04.
  5. Step 5: Update your email address.
  6. Step 6: Fire up the web interface installer.
  7. Step 7: Install Nagios Plugins.

How do I monitor my network with Nagios?

How To Monitor Network Switch and Ports Using Nagios

  1. Enable switch.
  2. Add new hostgroup for switches in switch.
  3. Add a new host for the switch to be monitered.
  4. Add common services for all switches.
  5. Add service to monitor port bandwidth usage.
  6. Add service to monitor an active switch port.

How do I start Nagios in Ubuntu?

Starting and Stopping Nagios

  1. Init Script: The easiest way to start the Nagios daemon is by using the init script like so: /etc/rc.d/init.d/nagios start.
  2. Manually: You can start the Nagios daemon manually with the -d command line option like so: /usr/local/nagios/bin/nagios -d /usr/local/nagios/etc/nagios.cfg.

How do I monitor Ubuntu Server with Nagios?

  1. Step 1 — Installing Nagios 4.
  2. Step 2 — Installing the Nagios Plugins.
  3. Step 3 — Installing the check_nrpe Plugin.
  4. Step 4 — Configuring Nagios.
  5. Step 5 — Accessing the Nagios Web Interface.
  6. Step 6 — Installing Nagios Plugins and NRPE Daemon on a Host.
  7. Step 7 — Monitoring Hosts with Nagios.

Can Nagios monitor infrastructure?

Nagios XI monitors IT infrastructure components such as applications, OSes, networks and system metrics. Plug-ins are supported for these infrastructure components to expand on XI’s monitoring capabilities.

How do I set up nagios?

  1. Step 1: Install Required Dependencies.
  2. Step 2: Create Nagios User and Group.
  3. Step 3: Download Nagios Core 4.4.
  4. Step 4: Extract Nagios Core and its Plugins.
  5. Step 5: Customizing Nagios Configuration.
  6. Step 6: Install and Configure Web Interface for Nagios.
  7. Step 7: Compile and Install Nagios Plugin.

How can I tell if nagios is running on Linux?

As opposed to just checking that a web server is running on the classroom PCs, you could also check that t he nagios3 service is available, by requesting the /nagios3/ path. This means passing extra options to the check_http plugin.

How nagios monitor Linux server?

In order to monitor the server using Nagios Core, you will need to add the host and services to nagios server from the command line. Now login into your Nagios Server from the command line you will need to do following steps: Install NRPE Plugin. Add the Linux Server to the host file.

Which is better nagios vs zabbix?

After comparing the two it is clear that Zabbix is the winner. While Nagios Core has the basics in place to run effective network monitoring it simply doesn’t have the experience and configurability that Zabbix does. Zabbix is a free network monitor that performs like a product situated in the very top price bracket.

Can I use Nagios for free?

Nagios XI is free for up to 7 nodes after the trial, so it’s a great resource to spin up and explore how easy it can be used to accommodate your enterprise needs. If you have any technical questions, be sure to check out our amazing support forums and technical resources.

How to install Nagios on Ubuntu?

Nagios in Ubuntu Linux. 1 Step 1: Install PHP on Ubuntu for Nagios. Nagios has its own built-in PostgreSQL database and a daemon that can silently monitor your system status. 2 Step 2: Create A New User for Nagios. 3 Step 3: Download and Install Nagios. 4 Step 4: Secure Your Nagios Service. 5 Step 5: Load Nagios on Web Browser on Ubuntu.

How do I add a new host for Nagios to monitor?

Let’s add a new host so Nagios can monitor it. You’ll install the Nagios Remote Plugin Executor (NRPE) on the remote host, install some plugins, and then configure the Nagios server to monitor this host. Log in to the second server, which we’ll call the second Ubuntu server:

What is Nagios monitoring tool?

Nagios is a robust continuous and real-time monitoring tool to monitor your organizations and servers. Nagios can be installed on Ubuntu Linux desktop and server system for both manual and automatic monitoring.

How does Nagios monitor remote hosts using NRPE?

Nagios monitors remote hosts using the Nagios Remote Plugin Executor, or NRPE. It consists of two pieces: The check_nrpe plugin that the Nagios server uses. The NRPE daemon, which runs on the remote hosts and sends data to the Nagios server. Let’s install the check_nrpe plugin on our Nagios server.