Chapter 39. Namespaces
In this chapter, we explain principles of organizing namespaces. A namespace is a set of names that have a common purpose. Examples of namespaces are account names, printer names, fully qualified domain names, Ethernet addresses, service name/port number lists, and home directory location maps.
A nameservice associates attributes with each name in a given namespace. For example, a computer user directory (nameservice) uses the account names namespace as a set of unique keys and associates unique identifiers (UIDs), home directories, owners, and so on with each account name. A configuration management database (CMDB) uses the hostnames namespace as a unique key and associates with it asset numbers, hardware serial numbers, ...
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