Permissions; Sharing Files Across Multiple Platforms; Accessing Files Created By Unix Clients - HP J3278B - SureStore CD-ROM Server/Tower 7 NAS Server User Manual

At boot-up time, the HP NAS VA locates the PDC in the specified account domain, as well as the
domain controller in the specified resource domain, then logs on to that domain.

Permissions

You can assign the following permissions to an NT resource:
Read
o
Delete
o
Write
o
Execute
o
Change Permissions
o
Take Ownership
o
Additionally, you can group these permissions into standard permissions that consist of one or
more previous permissions. These standard permissions include:
No Access
o
Read
o
Change
o
Full Control
o
Special Access (where individual permissions can be selected, such as Read +
o
Change Permissions)

Sharing Files Across Multiple Platforms

The HP NAS VA was designed to work well in a heterogeneous environment and support remote
file access protocols for UNIX and NT clients. A major difficulty in sharing data across these
environments is that the file system security models are very different. For example, NT systems
that use user-level security use ACLs to identify both themselves and the permissions for each
data object, whereas UNIX systems use traditional UNIX permissions that define explicit
permissions for the user, group, and other. However, given some care in setting up the security
environment, a reasonable level of access can be provided for cross-environment requests ( i.e.,
a UNIX client requesting a file created by an NT client) without overly compromising the security
set by the creator of the object.

Accessing Files Created by UNIX Clients

When an NT user accesses a UNIX file, the UNIX file permissions are translated into an ACL that
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