How To Monitor Apache ActiveMQ With Nagios xi This document describes how to use custom Apache ActiveMQ plugins and checks to monitor your Apache ActiveMQ server with Nagios xi. Specifically, this document shows you how to set up Nagios xi to get up... Read More

How to Monitor Apache Cassandra Distributed Databases This document describes how to configure Nagios® xi™ to monitor Apache Cassandra distributed database implementations in order to ensure that data, as well as the hardware housing it, is... Read More

Installing The Linux Agent This document describes how to install the Linux monitoring agent on target RHEL, CentOS, Fedora, SLES, OpenSUSE, Ubuntu, and Debian Linux servers. Other Linux distributions may be added in the future. Documentation -... Read More

Monitoring Hosts Using NRPE and NRPE Monitoring Wizard This document describes how to monitor hosts with Nagios xi by using NRPE and NRPE Monitoring Wizard. This document is intended for use by Nagios xi Administrators who want to setup custom... Read More

Nagios xi - Monitoring Linux Using NRPE and Linux Server Monitoring Wizard This document describes how to monitor Linux hosts with Nagios xi by using the Nagios Remote Plugin Executor (NRPE) and the Linux Server configuration wizard.This document is... Read More

Restarting A Linux Service With NRPE This document describes how to automatically restart problematic services on Linux servers using NRPE. Documentation - Restarting A Linux Service With NRPE   Final Thoughts For any support related questions... Read More

Overview This KB article explains how to upgrade the Linux NRPE Agent for Nagios xi that has been previously installed following these instructions. Documentation - Installing The Linux Agent   Upgrade Steps An upgrade to NRPE v3.x is completed by... Read More

Overview Nagios Remote Plugin Executor (NRPE) is an agent used by Nagios xi for communicating with remote hosts. Remote hosts are operating systems like Linux and Windows.   This KB article explains: How Nagios xi sends requests to the NRPE Agent... Read More

Configuring NRPE Commands To Accept Arguments This KB article shows you how to configure NRPE to accept arguments. When installing NRPE from source (How To Install NRPE v3 From Source) it comes preconfigured with five static commands: command... Read More

Installing NRPE Using the Install Script You must run the following commands as root. cd /tmp For CentOS & RHEL , Fedora 14+, SLES & OpenSUSE 11+, Ubuntu, Debian: wget http://assets.nagios.com/downloads/nagiosxi/agents/linux-nrpe-agent.tar... Read More

Overview This guide is intended for administrators who would like to run NRPE without using xinetd. As xinetd does provide some level of security, it is not recommended to do this.   Install and Configure NRPE to run without xinetd First, we need to... Read More

Problem Description In older versions of the Linux NRPE Agent, the memory plugin custom_check_mem did not take into account cached memory as part of the free memory and may create false warning or critical alerts, even though you are NOT low on... Read More

Overview This KB article discusses NRPE and the network packet size used in the different versions of the client and the check_nrpe plugin.     Nomenclature The following explains the terms used in this document. Client / Agent This is what is... Read More

Overview This KB article explains how to configure xiNETD to stop the logging of successful NRPE connections. Every time the Nagios xi or Nagios Core server connects to the NRPE client, the following is logged in /var/log/messages (or equivalent): �... Read More

Upgrading To NRPE v3 From Source This document explains what is required to upgrade to NRPE v3. The actual commands required to upgrade do not differ much from the installation steps, hence this KB article is a guide as to what steps need to be... Read More

Overview This KB article discusses NRPE v3 and the ability to use a config file for command line arguments. NRPE v3 has two major improvements over previous versions: Increased packet size up to 64K (referred to as v3 packet) Previous versions... Read More

Overview This KB article discusses NRPE v3 and the new security features implemented in that version. A 2048-bit DH key is used instead of a 512-bit key The ssl_version directive lets you set which versions of SSL/TLS you want to allow (TLSv2+ by... Read More

Overview This KB article discusses NRPE v3/v4 and it's compatibility with previous versions of NRPE and clients that use NRPE such as NSClient++. NRPE v3 has two major improvements over previous versions: Increased packet size up to 64K ... Read More