Passive host checks?

Thomas Guyot-Sionnest dermoth at aei.ca
Sat May 5 02:37:57 CEST 2007


On 04/05/07 03:08 PM, Drew Myers wrote:
> I'll try to rephrase.
> 
> If all of a host's services fail, is it reasonable to expect nagios to
> mark the host as failed? How do I achieve this with passive-only checks?

You should pass along passive results for hosts. The problem with this
kind of assumption is that for routers Nagios could think that the rest
of the network is unreachable if all services of a router are down, but
that's not always the case.

A ping check is much less likely to fail than snmp, ssh or other checks
(And I've seen network devices become totally unreachable while still
functioning properly).

Thomas

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