Home > Storage > PowerScale (Isilon) > Product Documentation > Management and Migration > PowerScale OneFS User Mapping: Mapping Identities Across Authentication Providers > Introduction
You can set user mapping rules with either the Web administration interface or the command-line interface. You can, for example, connect to a node by SSH and run commands to manage the user mappings by using the isi zone zones modify command.
Because OneFS is a distributed operating system, when you change a mapping on one node, OneFS propagates the change to the other nodes. OneFS stores the user mappings in the system configuration tree, which is referred to as gconfig. After a change, the OneFS authentication service reloads the configuration.
Mapping rules apply to an access zone, and the rule applies only in the context of its zone. For instructions on how to set user mapping rules with the Web administration interface, see “Create an access zone” in the OneFS Administration Guide.