1. Do not wait for whole document body to download. Also, depending on your configuration you should add this last file to the main file (/usr/local/nagios/etc/nagios.cfg): Check the configuration and, if no errors or warnings, reload the service: And now you have a new custom check on a host: Nagios has a huge library of plugins available at Nagios Exchange. Add the file to the standard Nagios Core location, /usr/local/nagios/libexec. How to Write a Custom Nagios Check Plugin, /usr/local/nagios/etc/objects/commands.cfg, /usr/local/nagios/etc/objects/localhost.cfg, /usr/lib/nagios/plugins/check_users -w 5 -c 10, /usr/local/nagios/etc/objects/nrpeclient.cfg, Generic installation on Debian-based Client, Set the NRPE Check on the Server Configuration Files, Develop Network Applications for ESP8266 using Mongoose in Linux, How to Setup IKEv2 IPSec VPN Using strongSwan and Let's Encrypt on Rocky Linux 9, ISPConfig Perfect Multiserver setup on Ubuntu 20.04 and Debian 10, Generating Web Site Statistics With AWStats & JAWStats On Debian Lenny, How to Install Jitsi Video Conference Platform on Debian 11, How to Install LAMP Server Stack on Ubuntu 22.04, How to use grep to search for strings in files on the Linux shell, You have Nagios installed and running (You can follow this. This requires trying to read the entire disk directly from the block device (such as /dev/sda1) and checking if the attempt has failed. These types of checks are called Active Checks. . External applications can submit passive host check results to Nagios by writing a PROCESS_HOST_CHECK_RESULT external command to the external command file. Filters such as firewall and TCP wrappers should be used. It essentially does the same thing as a debug level of 2048, but can be used on a per-plugin basis. The following screenshot shows a complete overview of all the service checks that have been configured so far. i.e: It has been designed to run . Check WMI Plus includes a service module that can check if a service is running. There are several different use cases covered in this KB article: The sections below provide examples of how to perform these checks using different methods. Method 3. As this tutorial is based on Debian 9, I will show as an example how to install it, but you can find instructions for any distribution. On-demand as needed for predictive service dependency checks. In order to allow remote hosts to send passive check results to the monitoring host, I've developed the NSCA addon. These state changes result in different state types (HARD or SOFT), which can trigger event handlers to be run and notifications to be sent out.
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