Download nagios free

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We get a small percentage of the sale, and it helps to make it possible to offer NEMS as a free download. NEMS Linux was a boatload of work. If you appreciate the nights of cuddles my wife lost, please help me treat her to a very nice romantic dinner by throwing something in the tip jar. Nagios is a web interface, so we need to install Apache and PHP: sudo apt install apache2 libapache2-mod-php.

We need to download sources for them, check their websites for the latest version: Nagios Core downloads Nagios Plugins downloads. Now we have to extract files from the archive, compile the sources and install Nagios on the Raspberry Pi:. This is the end of the Nagios core installation. We now need to configure the Apache part to allow access to the Nagios page. The Nagios installation is almost done, we just need to run the Nagios service.

Nagios has a service running in background to launch a check at a predefined frequency every 5min for example. We need to start it to finish the installation: sudo service nagios start. Everything is fine with Nagios, we just want to add plugins now.

Nagios uses a specific vocabulary to define each object in the configuration So first, I have to be sure you know it:.

Nagios uses mainly SNMP to connect to other hosts and get all the information. So we need to install SNMP on every new host before adding it in the configuration file. This is really a basic host definition, with the host name, alias and IP address. We also add it to the Linux servers host group to inherit group-defined services if you add some later.

Nagios already monitors the ping response for our new host, but we want more. So we need to add a service inside, but first we need to define the command to use. Previously in this tutorial you downloaded and installed Nagios plugins Nagios plugins provide many commands to check the local host, but not so much for remote hosts. You can also download many other commands on this website specifically look for SNMP plugins.

The command is now ready to be used for your host, but we need to create a new service to apply it. If you understood how to create a host, a command and a service, you are now ready to do anything in Nagios. Is it possible to create the configuration from the web interface? But there are several configuration tools you could install. Is it possible to monitor Windows or other hosts? You could monitor anything on the network. SNMP is also available for Windows and most of the network equipments router, switch, home automation device, ….

As you can create your check commands, everything is possible. The CGIs provide Nagios users with the basic functionality required to view and manage elements that are monitored by Nagios Core.

Many users deploy additional frontends to customize the look, feel, and functionality of their Nagios UI. There is a rich variety of addons that provide additional features that are out-of-scope for Nagios Core itself, including configuration frontends , performance graphing , auto-discovery , and distributed monitoring , among others.

These features are implemented in different Nagios projects, which are developed independently and can be found at Nagios Exchange. Nagios Core Nagios Core is the monitoring and alerting engine that serves as the primary application around which hundreds of Nagios projects are built. Download for Free Try an Online Demo. Nagios Core serves as the basic event scheduler, event processor, and alert manager for elements that are monitored.