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List:       nagios-users
Subject:    Re: [Nagios-users] New to Nagios - Why do i not recieve Service
From:       Richard Clark <noc () fohnet ! co ! uk>
Date:       2011-11-30 18:36:04
Message-ID: 20111130183604.GA5751 () fohnet ! co ! uk
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On Wed, Nov 30, 2011 at 05:25:27PM +0000, Nagios FTL wrote:
> Good afternoon,
> 
> I am completely new to Nagios so please excuse me if this is a really silly
> question:
> 
> I am currently testing before i start to add in real hosts.
> 
> I am testing notifications at the moment and i have created a file for
> SWITCHES that i have put in a test switch that does not exist so always
> will be down and should trigger notification.
> 
> I recieve Host Alert Emails in the output of
> 
> Subject: ** PROBLEM Host Alert: Test Switch is DOWN **
> 
> ***** Nagios *****
> 
>  Notification Type: PROBLEM
> 
>  Info: CRITICAL - Host Unreachable (192.168.1.208)
> 
> Host: Test Switch
> 
> Address: 192.168.1.208
> 
> State: DOWN
> 
> Date/Time: Wed Nov 30 16:47:07 GMT 2011
> 
> 
>  But i never recieve a Service Alert email.
> 
> I have tried disabling nofitications in the host template and only enabling
> notifications in the service template but then i recieve nothing at all.
> 
> Here the whole of my switch.cfg that i am using for testing, Nagios likes
> it and reports Down and Critical statuses on it so it works but just doesnt
> send out service alert notifications.
> 
> http://dl.dropbox.com/u/895609/Switch.cfg
> 
> 
>  Could somebody help me as to why please?
> 
> 
>  Thankyou very much

If the host is in a DOWN state, by default nagios won't also send out service
notifications for that host (kind of an in-built service dependency).
In the default configuration, you'll only get service notifications when
the host is up (the logic being that if a host is down, no services can be running on the host).

Check the docs for notifications here:
http://nagios.sourceforge.net/docs/3_0/notifications.html

Also, if you've got predictive failure checking enabled, nagios will by
default perform a host check on the first instance of a service going
critical.

If this is the behaviour that you want, then you may be able to do
something with host/service dependencies:
http://nagios.sourceforge.net/docs/3_0/dependencies.html


Cheers,
-- 
Richard Clark
richard@fohnet.co.uk

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