It allows you to have a single "command" that may have variable results depending on which "service" uses it.
IE, you can have one command, check_disk which is defined with command check_disk -w $ARG1$ -c $ARG2$ -H $HOSTADDRESS$ and then two services, "Check disk fileserver" and "check disk webserver" In these, you'll define check_command check_disk!80!90 or check_command check_disk!85!95 So now your web servers and file servers are using the same command with different arguments depending on which service you choose to apply to a host. It's true that you can have a 1-1 command/service relationship, but this method allows you to be more flexible. This works for Nagios 2.x as well as 3.x -Gius David Dyer-Bennet wrote: > I don't really understand the purpose / utility of the "command" level of > abstraction in Nagios configuration. (2.10; we're still on Centos 4.7). > > To define a new service to check particular Windows web services we've > written, I define a service, and then it has to refer to a command, and > over in the command I have to hard-code the parameters needed to test this > specific service -- so in fact I need a separate command for each service. > This seems, to me, to just introduce confusion, and separate bits of > information that belong together. > > Is this just a historical artifact that in fact doesn't make much sense, > or are there lots of cases where it's useful and makes it easier or > clearer to do what you want? > > (I'm fine with "that's the way it works, but it doesn't really make much > sense as it turns out", I've got plenty of that in my own code; I'm just > looking for more understanding, in case it makes more sense than I've so > far figured out.) > > As a broader question, are there documents that give more of a logical > overview of Nagios, explaining how and why things are broken up and how > they work together? > ------------------------------------------------------------------------------ Let Crystal Reports handle the reporting - Free Crystal Reports 2008 30-Day trial. Simplify your report design, integration and deployment - and focus on what you do best, core application coding. Discover what's new with Crystal Reports now. http://p.sf.net/sfu/bobj-july _______________________________________________ Nagios-users mailing list Nagios-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/nagios-users ::: Please include Nagios version, plugin version (-v) and OS when reporting any issue. ::: Messages without supporting info will risk being sent to /dev/null
