What is Nagios Nrpe?

What is Nagios Nrpe?

The NRPE addon is designed to allow you to execute Nagios plugins on remote Linux/Unix machines. The main reason for doing this is to allow Nagios to monitor “local” resources (like CPU load, memory usage, etc.) on remote machines.

How does Nrpe work in Nagios?

NRPE is a monitoring agent and protocol that is often used to monitor remote hosts with Nagios. NRPE works with: a client (check_nrpe plugin) that runs on the Nagios server. a daemon that runs on the remote server, processes requests from the client, and returns status information.

What is the latest version of Nagios?

The latest version of Nagios Core is 4.4. 7 was released on 2022-04-14.

What are the Nagios plugins?

What Is A Plugin? Plugins are standalone extensions to Nagios Core that make it possible to monitor anything and everything with Core. Plugins process command-line arguments, perform a specific check, and then return the results to Nagios Core.

What is Nrpe and why is it used?

NRPE. Nagios Remote Plugin Executor (NRPE) is a Nagios agent that allows remote system monitoring using scripts that are hosted on the remote systems. It allows for monitoring of resources such as disk usage, system load or the number of users currently logged in.

What is Nrpe port?

By default, the NRPE daemon listens on TCP port 5666, whether it’s configured to do SSL or not.

Is Nrpe deprecated?

As of 28 Jan 2020, NRPE has been deprecated.

How do I set up Nrpe?


  1. Add nrpe port to /etc/services – Add NRPE service to /etc/services and make sure port 5666 (default) is open on Firewall: # echo “nrpe 5666/tcp # NRPE” >> /etc/services.
  2. Make necessary changes to nrpe. conf – Edit nrpe.
  3. Start xinetd/nrpe and enable them at system boot:

What is Nrpe and why is IT used?

What is alternative to Nagios?

SolarWinds Server & Application Monitor is our top pick for a Nagios alternative because it covers all layers of digital infrastructure on premises and will also monitor cloud-based systems.

Does Nagios core have a GUI?

Download Nagios Core Nagios XI includes a built-in web configuration GUI, which makes it much easier to manage than Core. In Core, you configure everything with flat text on the command line; in XI, you can use the monitoring wizards and Core Config Manager advanced GUI.

How Nagios will work?

Nagios runs on a server, usually as a daemon or a service. It periodically runs plugins residing on the same server, they contact hosts or servers on your network or on the internet. One can view the status information using the web interface. You can also receive email or SMS notifications if something happens.

Is Nrpe secure?

check_nrpe is not secure, unless you configure and use certificates, if not you are using “Anonymous Diffie-Hellman” see OpenSSL wiki for an explanation. NRPE’s security is based on IP whitelisting only, so not safe against MITM attacks as well…

Where do I install Nrpe?

How to Install Nagios Client (NRPE) on Ubuntu 20.04

  • Step 1 – Install Nagios Client on Ubuntu. NRPE packages are available under the default repositories on Ubuntu systems.
  • Step 2 – Configure Nagios Client.
  • Step 3 – Verify Connection from Nagios.
  • Step 4 – Update Command Definitions for NRPE.
  • Step 5 – Adjust Firewall.

How do you check Nrpe is installed or not?

This article will help you to install NRPE service on your Linux system and add a host in Nagios server for monitoring….How to Monitor Remote Linux Host using Nagios and NRPE

  1. Step 1 – Configure NRPE on Linux Host.
  2. Step 2 – Add Linux Host in Nagios.
  3. Step 3 – Check Host in Nagios Web Interface.