Yeah, I think luca's talking about hosts.cfg...if you have a service you want to be exactly the same for a number of hosts, you can have a list of hosts for your host_name option (comma-delimited, of course)...and Sina's option makes sense, but instead of host_name, I imagine it'd be someting like group_name.
Another option is to define a template for each service that applies to a number of hosts. That way, all you need to have for each service entry would be just a few lines:
Just be sure that when you're defining your templates, you set register to 0, so Nagios doesn't think it's an actual service you want checked.
Edited Sun Jan 08 2006, 10:10PM ]