service "Service Name" [with <config_file>]meaning that you want an instance of Service Name with parameters as defined in config_file. For services that don't need configuration, the with part is omitted. In some cases, when the configuration is limited to a single parameter (such as the Node Lister service), the with part gives this parameter directly, as in
service "Node Lister" with /doc
include other-file
filterset AFilter = Filter1 | ... FilterN;where each Filteri is either a filter name or a filterset name.
filters AFilter;In this case, we told the server to use the filterset AFilter previously defined. We could also have written
filters AFilter | AnotherFilter;There must be exactly one filters directive in the configuration of a server.