HP NAS 8000 Clustered Solution Uživatelský manuál stáhnout pdf (Strana 75)

Configuring Your System and Network 73

Configuring Your System and

Network

Configuring User and Group Mapping

Understanding User and Group Mapping

This screen lets you map Windows users/groups, who use the Server

Message Block Protocol/Common Internet File System protocol (SMB/CIFS),

to UNIX users/groups, who use the Network File System protocol (NFS):

■

SMB/CIFS, the Windows protocol for sharing files, lets client applications

read and write to files. CIFS is a standard protocol that lets programs

request files and services on remote computers over the internet. CIFS uses

the client/server programming model. A client program makes a request

of a server program (usually running on another computer) for access to a

file or to pass a message to a program that runs on the server computer.

The server takes the requested action and returns a response.

■

NFS, the UNIX protocol for sharing files, is a client/server application that

lets a user view and optionally store and update files on a remote

computer as though they were on the user's own computer.

Note User or group mapping is available only when you select user-

level security on the Windows Security screen. User or group

mapping using names is most useful when NIS is enabled.

The NAS server maintains a mapping of users/groups between the two

protocols. If a Windows user/group is not mapped to an existing UNIX user/

group ID, then when the Windows user/group accesses the NAS server for

the first time, a new UNIX user/group ID is generated and the Windows

user/group is mapped to it.

Mapping users/groups improves:

■

Adherence to file and directory permissions

■

Compliance to disk quotas

■

Display of file and directory ownership

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HP NAS 8000 Clustered Solution Uživatelský manuál Strana 75