We currently have Nagios 2.9 installed and has been running nicely for a few years. I want to migrate it off that old Linux server onto a new one. I've gotten Nagios 3.1.2 installed and running fine. Before I migrate all 240+ of our devices over to the new install, I'm curious as to how other SysAdmins are configuring it.
I've heard of: - Each host in its own config file with it's corresponding services, and you can copy then edit the file to easily add a new device, and all like devices in separate folders. - All alike hosts in a single config file. With or Without all services in that same config file. - All Hosts and services in one file. Then dependencies laid out in a separate file (our current config)
How are the Nagios config files arraigned in your system? I'd like to get differing ideas to make ours the most efficient it can be.