What type of architecture is Nagios?

What type of architecture is Nagios?

Nagios has server-agent architecture. Nagios server is installed on the host and plugins are installed on the remote hosts/servers which are to be monitored. Nagios sends a signal through a process scheduler to run the plugins on the local/remote hosts/servers.

What are the components of Nagios architecture?

Nagios Core 4: The primary monitoring and alerting engine. NRPE and NSCA: Provides legacy inter-connects for remote monitoring and distributed monitoring. NDOUtils 2: Provides a database backend for the monitoring engine. PNP Integration: Provides automatic, RRD-based performance and trending graphs.

What are the features of Nagios?

Features

• Centralized view of entire monitored IT infrastructure.
• Detailed status information available through web interface.
• Fast detection of infrastructure outages.
• Alerts can be delivered to technical staff via email or SMS.
• Escalation capabilities ensure alert notifications reach the right people.

What is Nagios monitoring tool PDF?

Nagios is an open source continuous monitoring tool which monitors network, applications and servers.

Why should we use Nagios?

Here are the important reasons to use Nagios monitoring tool:

• Detects all types of network or server issues.
• Helps you to find the root cause of the problem which allows you to get the permanent solution to the problem.
• Active monitoring of your entire infrastructure and business processes.

Is Nagios easy to learn?

it’s not that easy. Setting up Nagios can involve a bit of work – partly because of the options that Nagios offers, partly because you need to know what to monitor on your network (and how best to do it). Use the quickstart instructions. Within 20 minutes you can have Nagios installed and monitoring your local system.

How is Nagios used?

Nagios is an open source monitoring system for computer systems. Nagios software runs periodic checks on critical parameters of application, network and server resources. For example, Nagios can monitor memory usage, disk usage, microprocessor load, the number of currently running processes and log files.

What can Nagios do?

Nagios is an open source monitoring system for computer systems. It was designed to run on the Linux operating system and can monitor devices running Linux, Windows and Unix operating systems (OSes). Nagios software runs periodic checks on critical parameters of application, network and server resources.

What are the benefits of Nagios?

Implementing effective server monitoring with Nagios offers the following benefits:

• Increased server, services, process, and application availability.
• Fast detection of network and server outages and protocol failures.
• Fast detection of failed servers, services, processes and batch jobs.

How do I deploy 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 do I run Nagios core?

Starting Nagios Core

1. Init Script: The easiest way to start the Nagios Core 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.

What kind of architecture is Nagios based on?

Nagios is based on client-server architecture. It is a network where the Nagios server is executed on a host, and the plugins are enabled on all every remote host that should be periodically monitored. The scheduler is an important component and server portion of Nagios. It transmits a signal to run the plugins at a remote location.

Where does the server of Nagios usually run?

The server of Nagios usually run on a host and the plugins run on the remote server/ or remote host which are to be monitored. The plugins of Nagios collect the useful data and send them to the process scheduler, which displays the information over the graphical user interface (GUI).

Which is an example of a Nagios agent?

The Nagios agents such as NRDP, NCPA can be executed with remote scripts, and NRPE is executed by using plugins. NRPE is used to monitor system performance, load, memory, usage. It comprises check_nrpe, which is saved on local monitoring systems, and NRDP, which is executed on remote machines.

What are the disadvantages of using Nagios Core?

Disadvantages of Using Nagios. Important feature like wizards or interactive dashboard are only available on Nagios XI, which is quite an expensive tool. Nagios core has a confusing interface. There’re many configuration files which are very hard to configure for users. Nagios can’t monitor network throughput.