Frequent question: What is host group in Nagios?

What is a host group?

A host group definition is used to group one or more hosts together for simplifying configuration with object tricks or display purposes in the CGIs .

Why do we need to configure host groups in Nagios?

Nagios create a host group

Nagios is an open source monitoring system and we can monitor devices running on Linux and Windows. And, when you have a considerable number of servers, it will be difficult to track. That’s where host group is useful.

How do I create a host group in Nagios?

How to do it…

  1. Create a new file called /usr/local/nagios/etc/objects/hostgroups.cfg , if it doesn’t already exist: …
  2. Write the following code into the new file, substituting the names in bold to suit your own layout: …
  3. Move a directory up and then edit the nagios.cfg file: …
  4. Add this line to the end of the file:

How do I find my host group?

How to View the Contents of a Host Group (Command Line)

  1. Determine which host group to view. For example, view the contents of the web-server host group.
  2. View the host group. $ changemgr hosts [ -u username ] [ -p file ] [ -d domain ] [ -l ] [ -g ] [ -R ] [ -o format ] [ topopath … ] -l.
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What is a meaning of host?

1 : a person who receives or entertains guests. 2 : a living animal or plant on or in which a parasite lives. host. verb.

What is host group in control M?

Host Group. Control-M/Server uses a round robin algorithm based on timestamp for each of the Nodes/Hosts in the group. The Agent with the oldest timestamp for all Nodes/Hosts in the Group is used first.

What is plugin in Nagios?

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.

How do I create a host group in Nagios XI?

You can define new host groups by selecting the Host Groups menu item (under Monitoring) from the Core Config menu and clicking the + Add New button. You will need to give the new Host group a name and description.

Is it right to say Nagios follows object oriented?

What is meant by saying Nagios is Object Oriented? Answer to this question is pretty direct I will answer this by saying: One of the features of Nagios is object configuration format in that you can create object definitions that inherit properties from other object definitions and hence the name.

How do I add a host to Nagios core for monitoring?

Open main Nagios configuration file and insert the line, cfg_dir=/usr/local/nagios/etc/objects/kifarunix-demo under the OBJECT CONFIGURATION FILE(S) section. Next, create your host object definition file. Next, define you hosts details such as hostname, IP address and the host template to use.

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How do I add multiple hosts in Nagios?

You need to a host definition and service definition for each host you want to monitor. To add an host just copy/paste an existent host definition and service definition (PING in this case), changing the host_name, alias and address.

How do I create a service group in Nagios core?

We can add our new servicegroup with the following steps:

  1. Change to our Nagios Core configuration objects directory, and edit a new file called servicegroups.cfg : …
  2. Add the following definition to the new file, substituting the values in bold with your own values: …
  3. Move a directory up, and then edit the nagios.cfg file:

What is host group in Linux?

hostgroup (5) – Linux Man Pages

A host group entry is used to merge host names to groups. Each host group entry file defines one group. Inside a group definition file you can also reference groups. These groups are called subgroups. A subgroup is referenced by the sign “@” as first character of the name.

How do I create a host group in Dynatrace?

Assigning a host to a host group

A host can be assigned to a host group during or after OneAgent installation. During: To assign a host to a host group when you install OneAgent, use the –set-host-group parameter. On Windows, you can also type the group name in the installer UI.

How do I find my host group in Unix?

Method #1: getent command to lookup username and group name

  1. getent passwd userNameHere getent passwd foo.
  2. getent group groupNameHere getent group bar.