It definition is right and certainly will indeed work. Exactly what for folks who later on decide to create an alternative online server? Could you see it easier to define a separate (almost the same) https://datingmentor.org/bbpeoplemeet-review/ order, in just the latest Ip altered? It is so much more productive when deciding to take benefit of macros of the creating one simple order including:
and leave Nagios the responsibility to expand the built-in $HOSTADDRESS$ macro to the appropriate IP address, obtained from the host definition (see below). As you’ll remember from the previous chapter, the $USER1$ macro holds the path to the plugins directory.
Also the of these you will find just seen, Nagios brings various other beneficial macros. Delight reference brand new files having a detailed list of every available macros as well as their authenticity perspective. Less than is an example band of order meanings.
3.3 Get in touch with meaning
get in touch with objects allow you to specify people who should be notified automatically when the alert conditions are met. Contacts are first defined individually and then grouped together in contactgroup objects, for easier management.
For the first time, in the following definitions, we will refer to previously defined objects. In fact, the values of the host_notification_several months and service_notification_months directives must be timeperiod objects; and the values of the host_notification_order and service_notification_demand directives must be command objects.
3.4 Host definition
We now have in the long run come to one of the most crucial aspects of Nagios setup: the word brand new machines (machine, workstations, gizmos, etcetera.) that people need to monitor. This can head me to introduce one of the most effective top features of Nagios setting: . Note that, regardless if we have been discussing it today very first, object inheritance relates to all the Nagios objects; although not, it is from the concept of computers and properties that one can get the most from it.
Actually, configuring an environment requires creating countless parameters; and value of these details will normally function as same for almost all computers. Rather than object genetics, this should imply throwing away long typing an equivalent details more than once and finally finding yourself with messy, fat and you will almost uncontrollable configuration data.
However, fortunately, Nagios makes sense enough to save a good amount of entering by allowing you to definitely identify special things, whose characteristics shall be “inherited” from the other things without having to write them. Lower than is a short exemplory instance of exactly how a theme is done:
- every template must be assigned a identity with the name directive;
- since this is not an actual host, you must tell Nagios not to it by setting the value of the check in directive to 0; this property doesn’t get inherited and defaults to 1, so you won’t need to explicitely override it in all “children” objects;
- a layout target are left , we.e. they eters.
To create an actual host object from a template, you simply have to specify the template name as the value of the use directive and make sure that all mandatory fields are either inherited or explicitely set:
Really, today let’s go from idea to train and describe one or two machine templates for our machine. Keep in mind that the next one inherits from the earliest; this is you are able to because the Nagios lets numerous quantities of template things.
Hosts can optionally be grouped together with the hostgroup statement, which has no effect on monitoring, but simply allows you to display the hosts in groups in the CGIs.
3.5 Service meaning
Configuring the services to monitor is much like configuring hosts: object inheritance can save you a lot of typing and you can group services together with the optional servicegroup statement. Below is the definition of our service template:
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