section-type instance-name {
    [ statements ]
}
Instance Names
An instance-name is a way to define a specific instance for a
particular type of section. For example, the client section is used to
define information about a client. When multiple clients are defined,
they are distinguished by their instance-name.
The same instance-name applies to modules. The sql module
defines interaction with an SQL database. Individual instances of the
sql module can define interactions with different databases.
Examples:
client localhost {
    ipaddr = 127.0.0.1
    ...
}
sql backup {
    ...
}