nagios notes

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host definitions

templates

minimal host template

define host {
		name		linux_server_template
		use		generic_host
		register	0
}

use : the template that this definition inherits from

register: 0 = don't treat it as a real host definition (it's a template)

troubleshooting inheritence

view all attributes inherited for an object in var/objects.cache

regenerated on nagios startup


distributed monitoring

central nagios server - active check are limited or there are none. checks are passive, monitoring data/status is received via "external commands" submitted through ocpd

to be added...

dummy command checks

active/passive checking

Host and Service Freshness Checks


check_freshness 1 freshness_threshold <seconds until unknown/stale state>