Distributed / Central and hosts in pgsql

[Marcel Mitsuto Fucatu Sugano]

Hello Shawn,

On Thu, 2006-04-27 at 20:12 -0300, Shawn Holland wrote:
> Well my last email I sent I requested info on how to allow nagios to work with 
> a list of hosts to be checked in a pgsql database. 
> 
> I was advised to use a program to make a config file for them.
> 
> I did this. But now while working on my next step of trying to get 30 servers 
> in the field, that each have a list of devices to be monitored stored locally 
> in their pgsql database.
> 
> Am I to understand that from the documentation that you need to have service 
> definations for all services on each distributed server. 
> 
> ie. If I have a switch that I want to do a ping check on behind one of my 
> distributed servers, I'll need to have that service defined on my central 
> server?
> 
Yes, but back then you haven't told us that it was distributed config.

> If this is the case then I don't know how I am going to do this. Because the 
> information may change on each distributed server.

You need to generate config files for each one of the distributed
servers with the services each one need to monitor, and one config for
your central Nagios server that contains all distributed servers config.

> 
> Documentation snip
> ...
> The central server must have service definitions for all services that are 
> being monitored by all the distributed servers. Nagios will ignore passive 
> check results if they do not correspond to a service that has been defined.
> ...
> 
> My setup is:
> 
> Central server
> 30 distributed servers
> 
> Each distributed server has 2 interfaces. One to the outside world and one to 
> the internal network. The internal network has several devices to be ping 
> checked and reported back to the central server.
> 
> The information for all devices to be ping checked are stored locally on each 
> distributed server in a pgsql database. 

Each distributed has its own pgsql with ALL devices? Or just the ones it
should ping? We have a similiar setup, and we generate two types of
config: For distributed servers (and here each config is totally
different from each other) and for central server (one monolithic file).

> I have a script that will run on each distributed server to generate a config 
> file outlining all the services for each devices.

ALL services for each device that one distributed server need to
monitor? right? Not ALL services that ALL distributed servers will
monitor?

> 
> This list may change so this script will rebuild the config file daily and 
> restart nagios to ensure accurate information.
> 
> How, if at all, can I acomplish the above.
> 
> I know its a lot to ask but any help would be apreciated.
> 

HTH,

Marcel.


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