service dependent on host status

[Mark Young]

Hi Assaf,

It is complaining because there are no services associated with the  
host.  Host dependencies work for hosts while service dependancies  
work only with services.  http://nagios.sourceforge.net/docs/3_0/dependencies.html

The reason for setting up hosts with check-host-alive (ping) as well  
as a PING service is because Nagios treats host and services  
differently.  I would recommend checking out the doc "host checks" and  
"service checks" which explain the difference between them.

A solution, even if you did not like the redundant ping checks, would  
be to have the host checked with check-host-alive but not include a  
check interval for the host.  Then setup a ping service for that host  
with a check interval that you would like it checked at.  The host  
check check-host-alive would be run at startup or when the service has  
a problem.

Besides the docs, Marc Powell had a good post earlier this year which  
I am going to reference again. :-) http://article.gmane.org/gmane.network.nagios.user/52470

good luck.

Mark Young
___
Nagios Enterprises, LLC
Web:    www.nagios.com


On Jul 17, 2008, at 5:29 AM, Assaf Flatto wrote:

> Hello
>
> I'm trying to implement hostgroup dependency on the router status .
> I am able to do the host/hostgroup dependency , but  I am uncertain  
> how to make sure that if a
> router is in the "danger" status , i want to disable the service  
> notifications for all the hosts in
> the host group.
>
> I am not having any service run on the router - just the default  
> check-host-alive , but when i try
> to do  dependency on that service , nagios complains on that no  
> services are assigned to the
> host "router" .
>
> anyone got an idea how to get such a set up to work ?
>
> adding a ping test to the router is redundant and there for not an  
> option we want to implement .
>
> Assaf
>
>
>
>
>
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