passive host alive check?

[Assaf Flatto]

Klein, Oliver wrote:
> 	
>
> Hi
>
> i have a questions about passive checks, we use this option to monitor 
> some servers from our customers.
>
> Now our problem is, that the services are in the state “OK” but the 
> hosts are “down”, but the host is “alive”.
>
> How can I solve this? I read some docs about this issue, but I didn´t 
> really understand what to do now. Can anyone
>
> give a short howto about this issue?
>
> Big thx in advance
>
> Regards Olly
>
>
> 	
>

AFAIK nagios passive checks ( defined usually by the users )are for 
services ( most users do not enable passive checks for hosts) - hence 
the host is never getting a status update as it is not check as a 
"service" per say.
you may need to set active checks on the host , and passive test for the 
host-related services , or you can change the host status manually with 
the use of the external commands.

if you are using the PING test for the host - then that should be the 
indicator for if the host is "alive" - as the check_host_alive is using 
ping to make that determination .

Assaf

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