Nrpe Nagios Support

Installing NRPE (Nagios Client) on CentOS 5 VIA repo CentOS and Redhat do not natively support nagios in the default package manager repository (yum), so we need. To recompile NRPE with ssl support, browse to your NRPE source directory (usually in /tmp/nrpe-2. NRPE - v3 Enhanced Security Read about the it https://support. # # NOTE: This option is ignored if NRPE is running under either inetd or xinetd nrpe_user=nagios # NRPE GROUP # This determines the effective group that the NRPE daemon should run as. Make sure both the NRPE daemon and the check_nrpe plugin were compiled with SSL support (During. We will also utilize the Nagios Remote Plugin Executor (NRPE. In this way the SRC think the nrpe process started by it has died. In our earlier tutorials, we installed & configured Nagios Monitoring server & also added Windows host to Nagios Server using NSClient++. 1 download. Below we have two hosts, one is a generic host, where NRPE supports SSL, and one is a host that does not support SSL. Installing NSClient++¶. First, I built NRPE 2. Marshmallow devices will also support the USB Type C standard, which offers an improved method of charging, Google says, and will allow devices to change three to five times faster. In the Nagios documentation, it suggests using Nrpe (Nagios Remote Plugin Executor). 1 on Ubuntu, Mint, CentOS, RHEL & Debian, Fedora Systems. The agent is configured ready to. Re: problem with nagios client config Hi again, Ok, now that I know that you are running nrpe in daemon mode you have to be aware that the nrpe. CVE-2014-2913 at MITRE. In this tutorial we will learn How to install and configure nagios nrpe in CentOS and Red Hat. nagios-plugin | The UNIX and Linux Forums. tar files and you need to configure them for their use. pid The systemd startup however needs the pid_file so that it can properly restart (and fix some other outstanding bugs). From the Nagios homepage: Allows you to execute "local" plugins (like check_disk, check_procs, etc. cfg and restart nrpe. In addition, the check_nrpe plugin now accepts switches that specify whether an IPv4 or IPv6 connection should be made to the NRPE daemon. The nagios host. #apt-get install nagios-nrpe-server nagios-plugins 7. Nagios is an open source software for system and network monitoring. Trying to monitor my Pfsense box with my nagios server but ide like to do this over SNMP and not NRPE, Does anyone know the OID's for… CPU Temp/System Temp GEOM Mirror Status?. The main configuration file includes the files in /etc/nagios-plugins/. The Nagios support forum is the preferred method of communication when reporting bugs or requesting help with the plugins. cfg) to add the IP of your Nagios server (in this example, 192. # # NOTE: This option is ignored if NRPE is running under either inetd or xinetd nrpe_user= nagios # NRPE GROUP # This determines the effective group that the NRPE daemon should run as. Read more master. 1 on Ubuntu, Mint, CentOS, RHEL & Debian, Fedora Systems. Nagios, the Nagios logo, and Nagios graphics. Support Plans. allow and /etc/hosts. Server monitoring is made easy in Nagios because of the flexibility to monitor your servers with both agent-based and agentless monitoring. That causes confusion with ownership of configuration files and the "nagios" user itself. ) with my nagios machine (another centos box). The Nagios Remote Plugin executor. All other servicemarks and trademarks are the property of their respective owner. Download nrpe 3 0 1. This KB article explains: How Nagios XI sends requests to the NRPE Agent. d/nrpe restart. It wants it to be in /var/run/nrpe/nrpe. By default Nagios is configured to check HTTP, disk space, SSH, current users, processes, and load on the localhost. BTW you don't need NRPE for most of the tasks. This patch is. It is very useful if you want to monitor remote clients or get metrics of remote clients. Now it's the turn for check_pgactivity, also popular for monitoring our PostgreSQL database. Welcome to LinuxQuestions. check_winevent is a Nagios plugin to monitor event logs on the local Windows system. This is a plugin that is run on the Nagios host and is used to contact the NRPE process on remote hosts. The presentation was given during the Nagios World Conference North America held Sept 25-28th, 2012 in Saint Paul, MN. This is a very powerful feature in Nagios 3, and makes templates all the more useful. Negation is also possible. ALT Linux Arch Linux CentOS Debian Fedora Mageia Mint OpenMandriva openSUSE PCLinuxOS ROSA Slackware Ubuntu. In order to access the commands on the remote host, nrpe plugin has to be installed on both the Nagios Core Monitoring Machine and the remote host. There are two hosts involved. # You can either supply a group name or a GID. Python is a popular command processor available on Linux by default. The [email protected] is getting a slew of emails - apparently originating from Nagios (NRPE) on the client,. CVE-2014-2913 at MITRE. When this option is enabled, even when NRPE makes. For instance if you want to check a service such as http you can still do it with check_http plugin over your nagios host. NRPE (Nagios Remote Plugin Executor) plugins are compiled executables or scripts that are used to check the status of a host's service, and report back to the Nagios service. Step 1: Install NRPE Plugin. Get the location where check_nrpe is there. Find the download URL for the latest stable release of NRPE at the Nagios Exchange site. NRPE - Nagios Remote Plugin Executor - NRPE enables users to remotely execute Nagios plugins on any Linux/Unix machine, allowing remote metrics monitoring. x (and newer) for Nagios XI on a remote windows machine. org, a friendly and active Linux Community. The Open Source IT monitoring solution that provides dependable monitoring to millions of users worldwide. nagios-check_nrpe architectures. The linux-nrpe-agent that ships with Nagios XI is only supported on CentOS, RHEL, OpenSUSE, SLES, Ubuntu, and Debian. cfg) to add the IP of your Nagios server (in this example, 192. Precisely speaking, however, it may have a bit different check commands. 2 Ubuntu 16. NRPE can also communicate with Windows agent addons like NSClient++, so you can check metrics on remote Windows machines as well. Nagios can monitor the activity of a host and its services, and provides a warning/alert if something bad happens on the server. Incorrect file permissions. NSClient++ 0. Is there another way to install check_nrpe plugin on an existing Nagios install ?. This allows you to monitor remote machine metrics (disk usage, CPU load, etc. Just $5/month. 1 on Ubuntu, Mint, CentOS, RHEL & Debian, Fedora Systems. 12From Nagios server:# check_nrpe -H Connection refused by hostFrom client:# check_nrpe -H -t 30CHECK_NRPE: Socket timeout after 30 seconds. Support Forums Technical Support Handbook. I thought I needed to manually. ) on remote hosts. Note: This contrib does not work on SME8b6 as documented here, there are a few changes needed to the repository info and also the yum commands, also a change needs to be made to the location of the nagios. nagios) that executes the NRPE binary from inetd/xinetd. pdf), Text File (. The NRPE daemon now has the ability to listen on IPv4 and/or IPv6 addresses. Step 1: Install the following required packages if not present. NRPE allows you to remotely execute Nagios plugins on other Linux/Unix machines. It is important to point out that even though Zabbix does not have a separate Enterprise edition, the company behind it offers several paid support services to customers who require these services. On Monitored server (in this case, Windows server), in order to send data to Nagios server, I installed NSClient++ 0. This NRPE add-on allows Nagios to monitor any local resources like CPU load, Swap, Memory usage, Online users, etc. nagios-check_nrpe architectures. You are currently viewing LQ as a guest. So does anyone knows of pros and cons of NRPE vs. With over 5000 different addons available to monitor your servers, the community at the Nagios Exchange have left no stone unturned. You can request technical assistance by searching the knowledge base for information about your particular issues, asking the community for help, or opening a support ticket. I have setup nagios + centreon manually ( not using yum) and if I run yum install nagios-plugins-nrpe it tries to install Nagios also plus *all* the plugins. But on hosts with NRPE 2. Our standard Nagios Core support plans offer the following features: Access to customer-only tutorials, documentation, and content in the Nagios Library Access to customer-only boards on our support forum for expedited assistance Access to customer-only email support for fast, confidential assistance. /configure –prefix=/usr/local. First launched in 1999, Nagios has grown to include thousands of projects developed by the worldwide Nagios community. 1 with 64-bit PowerPC Support - ITRS Group OP5 Monitor - FAQs. Now it's the turn for check_pgactivity, also popular for monitoring our PostgreSQL database. Move the files to/usr/src $ cd /usr/src $ tar zxvf nagios-plugins-1. The basic NRPE client/server functionality is working fine. But NRPE is another crap CRC32 code, and for efficiency and time saving I didn't wanted to reimplemented it in Erlang, so I wrote a nrpe_crc32 port. winrpe - Nagios NRPE for Windows. NRPE (Nagios Remote Plugin Executor) is an open-source project that allows you to remotely execute Nagios plugins on other Linux/Unix machines. Installing NRPE From Source. Other Ways Of Getting Help. 15 was released earlier today. This allows you to monitor remote machine metrics (disk usage, CPU load, etc. org, a friendly and active Linux Community. Hi, i have some issues on the nagios-nrpe-package. Overview Nagios Enterprises provides a custom distribution of the NRPE agent and Nagios Plugins for Linux, this greatly simplifies the steps involved to start monitoring your Linux machines. I recently did an icinga2 install and just used the additional repos (server:monitoring) but an older version is in the official repos both for nagios and nrpe. This article is intended to guide you with easy instructions on how to install the latest Nagios Core 4. Introduction. This is a release announcement for Nagios NDOUtils, NRPE and new Nagios Plugins. From the Nagios homepage: Allows you to execute "local" plugins (like check_disk, check_procs, etc. Nrpe - Nagios Remote Plugin Executor. Create Nagios host and add service definitions for monitoring the remote Linux host. This allows you to monitor remote machine metrics (disk usage, CPU load, etc. This program runs as a background process on the remote host and processes command execution requests from the check_nrpe plugin on the Nagios host. OK I am not sure how this got put in. - Support for Windows 2000 domains - Use CRITICAL instead of ERROR changes from 1. * NRPE should have its own user, not share the "nagios" user. We will also do some configuration changes in nagios server so that we could monitor the servers. NRPE can also communicate with some of the Windows agent add-ons, so you can execute scripts and check metrics on remote Windows machines, as well. We have previously covered how to install Nagios monitoring server on Ubuntu 12. Nrpe "daemonizes" itself. nagios-plugins-nrpe architectures. It consists of two pieces: The check_nrpe plugin that the Nagios server uses. We will also do some configuration changes in nagios server so that we could monitor the servers. By joining our community you will have the ability to post topics, receive our newsletter, use the advanced search, subscribe to threads and access many other special features. Q&A for Work. If the OpenStack cloud is distributed across machines, the NPRE addon can be used to run access plugin information on those remote machines. Welcome to LinuxQuestions. The purpose of this addon is to allow you to execute Nagios plugins on a remote host in as transparent a manner as possible. The primary update in this version of NRPE is full support for IPv6. This allows you to monitor remote resources like disk usage, CPU load, etc. Download nagios-nrpe-server packages for Debian, openSUSE, Ubuntu. Updating to the latest version of Skype Skype Support. * NRPE should have its config files in /etc/nrpe, not /etc/nagios. NRPE Troubleshooting and Common Solutions. Nagios Core documentation is updated daily. NRPE DOCUMENTATION 1. Bug#863646: nagios-nrpe-plugin: corrupted size vs. The nagios host. The tutorial is primarily divided into two parts: Configure remote hosts. ===== Version: 2. cfg file,Add your Nagios server ip address: # vi /etc/nagios/nrpe. Get latest updates about Open Source. Firewall on Nagios Monitoring server is down. x server allows Nagios Core to execute checks on remote computers. Nagios service description must contain the string "nrpe_mem". Installation Manual: PDF Manual. #apt-get install nagios-nrpe-server nagios-plugins 7. Get assistance the way that works best for you, and we'll work to ensure your total satisfaction with the results. Introduction Instructions to install NRPE agent & NRPE Plugins on IBM AIX. The version of Nagios Remote Plugin Executor (NRPE) running on the remote host has command argument processing enabled and accepts the newline character. How to install nagios client in Solaris 10 and NRPE Plugings 1. I thought I needed to manually. NRPE (Nagios Remote Plugin Executor) is an application to run Nagios plugins on a remote server and query the result via an encrypted connection. Support; Submit feedback; Contribute to GitLab Sign in. The main reason for doing this is to allow Nagios to. check_winevent is a Nagios plugin to monitor event logs on the local Windows system. Support Us; Linux. This allows you to monitor remote machine metrics (disk usage, CPU load, etc. check_winevent is a Nagios plugin to monitor event logs on the local Windows system. Nagios is known for being the best server monitoring software on the market. The process forked is inherited after by init. Step 3 — Installing the check_nrpe Plugin. Purpose This document describes how to enable and configure the NRPE Listener in NSClient++ 0. Contact Nagios Enterprises today! For sales questions call 1-888-624-4671. 0/24 (did not test this). This time, we will expand on this idea and create Nagios plugins using Python. In addition, the check_nrpe plugin now accepts switches that specify whether an IPv4 or IPv6 connection should be made to the NRPE daemon. The NRPE addon consists of two parts: • The check_nrpe plugin that runs on the Nagios XI server • The NRPE agent that runs on the remote Linux/Unix server, processes requests from the client, and returns status information back to Nagios XI Note: The NRPE protocol is supported by various Windows agents as well, so this documentation. Nagios Remote Plugin Executor Plugin. Welcome to LinuxQuestions. The Nagios support forum is the preferred method of communication when reporting bugs or requesting help with the plugins. NRPE also allows users to interact and communicate with Windows agent add-ons. NRPE se instala en el servidor Nagios y en los equipos (servidores y equipos desktop Linux) a los cuales no podemos acceder por firewall o porque queremos sacar info como usuarios logeados, espacio en disco, etc lo cual normalmente solo. This application allows a user to execute Nagios plugins and monitor remote machines. Services & Support. BTW you don't need NRPE for most of the tasks. Perhaps you who support and expand Nagios might take a moment to remember that we all do not have two weeks to work on merely getting one router monitored. OK I am not sure how this got put in. In this tutorial we will learn How to install and configure nagios nrpe in CentOS and Red Hat. Here are some other places where you can look for information about this project. # You can either supply a group name or a GID. search for the line allowed_host= and add your ip i belive you can do the subnet to eg: 192. x (and newer) for Nagios XI on a remote windows machine. [Nagios-users] NRPE Parameter Problems BNP Paribas is proud to support the Royal Academy of Arts in their presentation of ‘Wild Thing: Epstein, Gaudier-Brzeska. You are currently viewing LQ as a guest. check_ad a Nagios NRPE plugin for Active Directory health check. All distributions worth calling distributions already ship a NRPE server (the nagios-nrpe package for RH & co, or the nagios-nrpe-server package for Debian & co. This NRPE add-on allows Nagios to monitor any local resources like CPU load, Swap, Memory usage, Online users, etc. d/nrpe restart. In addition, the check_nrpe plugin now accepts switches that specify whether an IPv4 or IPv6 connection should be made to the NRPE daemon. NRPE gives users the option to execute Nagios plugins remotely on any of their Linux/Unix machines. NSCA could be considered the most secure approach because at the end of the day the only port that requires opening is the one on the Nagios server. Add entries to your /etc/hosts. Other versions may or may not work. Does the nagios user or the user NRPE is running under have permissions to read the directory? Can you run the script as the user on the remote server and get the expected results?. On Monitored server (in this case, Windows server), in order to send data to Nagios server, I installed NSClient++ 0. Nagios provides complete monitoring of Microsoft Windows services. This option enables users to oversee their machine metrics, remotely, giving insights into disk usage, CPU load, etc. The tutorial is primarily divided into two parts: Configure remote hosts. There are 4 scripts that perform the various functions. The NRPE daemon now has the ability to listen on IPv4 and/or IPv6 addresses. /configure –prefix=/usr/local. Sometimes System Admins are forced to use some Nagios customized plugins/checks, that take a bit more time to process and thus Nagios might produce/send false alarms like “CRITICAL – Socket timeout after 10 seconds“… Socket timeout after 10 seconds How to fix “CRITICAL – Socket timeout after 10 seconds” error?. Remote hosts are operating systems like Linux and Windows. If the commands are not working from…. NagiosExchange: Categories: Check Plugins: Windows: NRPE Plugins; 古い内容 (現在は上記で手に入ります) TSMG Software Supportに登録するとプラグインが入手できます。 ログインしてからこれをダウンロードするのが手っ取り早いかもしれません. In addition, the check_nrpe plugin now accepts switches that specify whether an IPv4 or IPv6 connection should be made to the NRPE daemon. Customers have the flexibility of obtaining Nagios support via email, our online ticket system, or phone. NRPE (Nagios Remote Plugin Executor) plugins are compiled executables or scripts that are used to check the status of a host's service, and report back to the Nagios service. By default it runs in background and fork to another process to do the work and let the parent die. Incorrect file permissions. 15 which lack IPv6 support and ony accept IPv4 connections. We know that many corporative installations nowadays use Nagios as their main monitoring system for networks, systems and applications. cfg, or even Mod-Gearman configuration files. custom Nagios XI NRPE agent, it is tailored specifically for the Linux Server configuration wizard. 31h1 So they are not actually using the nrpe agent, instead doing a ssh connection. Nagios Remote Plugin Executor (NRPE) is an agent used by Nagios XI for communicating with remote hosts. Monitoring Hosts Using NRPE This document describes how to monitor hosts with Nagios XI by using NRPE. Download nagios-nrpe-server packages for Debian, openSUSE, Ubuntu. The NRPE client can be installed through wilmardo. Nagios will monitor servers, switches, applications and services. Fully Automated Nagios. allow and /etc/hosts. Acknowledgement sent to Stephane Bortzmeyer : New Bug report received and forwarded. Add a phone support package to your Maintenance & Support contract to ensure your team has access to priority support services when you need them most. In this tutorial we will learn How to install and configure nagios nrpe in CentOS and Red Hat. Configure the agent to utilize the plugins using commands supported by OP5 Monitor host scan. 2 Ubuntu 16. Download nrpe 3 0 1. Nrpe "daemonizes" itself. From the Nagios homepage: Allows you to execute "local" plugins (like check_disk, check_procs, etc. 15 was released earlier today. The purpose of this addon is to allow you to execute Nagios plugins on a remote host in as transparent a manner as possible. Precisely speaking, however, it may have a bit different check commands. The NRPE (Nagios Remote Plugin Executor) plugin allows you to monitor any remote Linux/Unix services or network devices. There are 4 scripts that perform the various functions. deny file to enable TCP wrapper protection for the nrpe service. Add a phone support package to your Maintenance & Support contract to ensure your team has access to priority support services when you need them most. NRPE makes it Nagios's responsibility to check your application where as NSCA makes it your applications responsible to report its status. This how to describes several ways to monitor RaspBerry Pi with Nagios with the help of the Nagios NRPE Agent and Nagios plugins. A cronjob will call check_nrpe to tell the other Nagios machine to check the disk space or something through port 5666, where the host nrpe daemon is listening. Support Forums Technical Support Handbook. An unauthenticated, remote. Bug#863646: nagios-nrpe-plugin: corrupted size vs. This application allows a user to execute Nagios plugins and monitor remote machines. Is there another way to install check_nrpe plugin on an existing Nagios install ?. Is there another way to install check_nrpe plugin on an existing Nagios install ?. NRPE this horrible protocols uses fixed length packets (from the code the 2 last characters are never sets to 0, sizeof seems to be really misunderstood by the nagios developer :p). SSL is disabled. The NRPE daemon now has the ability to listen on IPv4 and/or IPv6 addresses. Each plugin is a stand-alone command line tool that provides a specific type of check. 12From Nagios server:# check_nrpe -H Connection refused by hostFrom client:# check_nrpe -H -t 30CHECK_NRPE: Socket timeout after 30 seconds. 1-1 Severity: normal nagios-nrpe-plugin has no support for IPv6 - so IPv6-Only-Hosts can't checked. Nagios/NRPE#client. 2 Ubuntu 16. Now resolved. If the commands are not working from…. The main reason for doing this is to allow Nagios to monitor "local" resources (like CPU load, memory usage,. Hi Experts I had configured Nagios in Redhat linux everthing is working smoothly My problem is i have Solaris 8,9,10 now i am installing NRPE plugings and NRPE in Solaris 10 to get the details of swap space & Machine load information all the compilation went smoothly. NRPE is used in combination with a set of local plugins. Help - Recent update to SELinux has impacted Nagios NRPE (self. Nagios / ˈ n ɑː ɡ iː oʊ s /, now known as Nagios Core, is a free and open source computer-software application that monitors systems, networks and infrastructure. cfg under /etc/nagios folder: # only be used if the NRPE daemon was compiled with support for Nagios nrpe with argument. Implementing effective HP-UX monitoring with Nagios offers increased server, services, and application availability. Hi, I have installed NRPE using the RHEL repositories, and it seems to be running fine. Nagios Core is free. There are two hosts involved. Next, we'll create a security group responsible for managing Nagios and populate it with that new "nagios" user group and the account that Apache runs under. com/kb/article Setup Directories: $ cd /usr/local/nagios/etcl $ mkdir ssl. Check out all of our support plan options. txt) or read online for free. But, they cannot address each other:# check_nrpe -H localhostNRPE v2. NRPE (Nagios Remote Plugin Executor) plugins are compiled executables or scripts that are used to check the status of a host's service, and report back to the Nagios service. The process forked is inherited after by init. Just follow the steps in this tutorial and you install Nagios on your VPS very fast. An example command definition for the check_nrpe plugin would look like this:. NRPE allows one to execute Nagios plugins installed on remote hosts, and integrate them with an existing Nagios server. Perhaps you who support and expand Nagios might take a moment to remember that we all do not have two weeks to work on merely getting one router monitored. Nagios is used for monitoring. NSClient support both check modes. Support Us; Linux. For instance if you want to check a service such as http you can still do it with check_http plugin over your nagios host. It alerts the System Administrator when something went wrong and also alerts back when the issues has been rectifie. It assumes that you have some basic knowledge of how NRPE works, that you have installed and created a base configuration. NRPE_NT is a Windows version of the NRPE (Nagios Remote Plugin Executor) daemon for unix-like operation systems. Amend the NRPE configuration (/etc/nagios/nrpe. check_ad a Nagios NRPE plugin for Active Directory health check. Now I heard that if I used SNMP I wouldn't have to install check_ plugins on each client. This works fine for hosts running NRPE releases before 2. For example, the check_nrpe_1arg command is defined in nrpe. nagios) that executes the NRPE binary from inetd/xinetd. In the official documentation of the check_postgres plugin, you can find information on what else to monitor and how to do it. Description of problem: Some Nagios plugins, when run remotely via nrpe, need to be run with sudo in order function properly. com Linux Tips, Tricks & News Today ! - Through on this article you will get idea to add Remote Linux Host on Nagios server 4. In this tutorial, we will cover the installation of Nagios 4, a very popular open source monitoring system, on Ubuntu 14. DESCRIPTION. Then there was the lack of the firewalls IP in allowed hosts. 1 I am having problems where do I start?¶ NSCP has a built-in "test and debug" mode that you can activate with the following command nscp test. I can issue a check_nrpe from the nagios box and the Cacti box reports the NRPE version back with no errors. Incorrect file permissions. The Monitoring Plugins Project. This uses a custom installer from Nagios Enterprises, it automates the installation and configuration process and it much easier than installing from source. After the installation and configuration it run and work well, but after reboot it refuse to start because can't find the /var/run/nagios direcory where it write it's pid file. The purpose of this addon is to allow you to execute Nagios plugins on a remote host in as transparent a manner as possible. Download nrpe 3 0 1. Nagiosがcheck_nrpeプラグインを実行し、どのサービスをチェックするか伝えます。 check_nrpeプラグインがリモートホスト上のNRPEデーモンと通信します(任意: SSL暗号化通信)。. Introduction Instructions to install NRPE agent & NRPE Plugins on IBM AIX. This how to describes several ways to monitor RaspBerry Pi with Nagios with the help of the Nagios NRPE Agent and Nagios plugins. It assumes that you have some basic knowledge of how NRPE works, that you have installed and created a base configuration. x (and newer) for Nagios XI on a remote windows machine. Re: problem with nagios client config Hi again, Ok, now that I know that you are running nrpe in daemon mode you have to be aware that the nrpe. Nagios How to Monitor VMFS on ESX With NRPE - Free download as PDF File (. Nagios is an open source, mature, and robust network and system monitoring application. "Check_nrpe -H localhost" works fine in Nagios server and in a client. NRPE Set up and configure NRPE server on IPFire. NRPE is also available for windows servers. Welcome to LinuxQuestions. The Nagios Remote Plugin Executor (NRPE) is installed to allow a central: Nagios server to actively poll information from the hosts it monitors. 1 field with the IP addresses of hosts which are allowed to connect to the NRPE daemon. # yum install nrpe nagios-plugins-users nagios-plugins-load nagios-plugins-swap nagios-plugins-disk nagios-plugins-procs 3. NRPE is also available for windows servers. Check out all of our support plan options. Sorry I didn't clarify the research I had already done: - The non-support of IPv6 in the NRPE plugin is indeed a flaw in the Nagios source. Replace the 127. 6 server which is running on fedora 5. Note: version 2. A cronjob will call check_nrpe to tell the other Nagios machine to check the disk space or something through port 5666, where the host nrpe daemon is listening. Here are some other places where you can look for information about this project. 15 was released earlier today. Nagios can run on Linux operating systems. For instance if you want to check a service such as http you can still do it with check_http plugin over your nagios host. Overview Nagios Enterprises provides a custom distribution of the NRPE agent and Nagios Plugins for Linux, this greatly simplifies the steps involved to start monitoring your Linux machines.