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Nagios Core Administration Cookbook - Second Edition by Tom Ryder

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Using inheritance to simplify configuration

In this recipe, you'll learn how to use inheritance to handle the situation where hosts and services share a lot of values in common, leading to a large amount of undesirable redundancy in configuration.

Some Nagios objects, particularly hosts and services, have a rather long list of possible directives and the default values for these are not always suitable. It's therefore worthwhile to be able to declare the values you want for these directives once and then spend only a few lines on the actual host definition by copying these values from a template, making the configuration shorter and easier to read.

The previous examples in this book demonstrated the use of this in suggesting you inherit from the ...

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