On very large networks, or networks with a lot of remote checking required, manually configuring NRPE services for everything that requires checking on each host can be burdensome. It's common to automate installing the plugins that are needed on the monitored host and the configuration required to use them, to make the network administrator's job a little easier when adding a set of new hosts with a standard set of services to monitor. Common tools to automate such setups include configuration management tools like Chef, Puppet, or Bcfg2.
Developing standard procedures like this may not appeal and busy administrators may be looking for an extension to Nagios that automatically discovers relevant services on a host to monitor, so that almost no manual configuration is required, instead generating the relevant stanzas automatically. This is one of the main functions of Check_MK, a Nagios Core extension written by Matthias Ketchner and available at https://mathias...