Yo u can back up and restore User Name Mapping da ta at any time. Because the database is backed up
to a file, you can use that file to copy the mapping da tabase to another server. This p rovides redundancy
for the sake of fault tolerance.
NOTE:
If you obtain information from multip le NIS domai ns, it is assumed that each domain has unique users
and user identifiers (UIDs). User Name Mapping does not perform any checks.
User Name Mapping associates Windows and UNIX user names for Client for N FS and Server for
NFS. This allows users to connect to Network File System (NFS) resources without having to log on to
UNIX and Windows systems separately.
NOTE:
Most of the functionality of User Name M apping has been replaced by Active Directory Lookup. Active
Directory Lookup enables Client for NFS and Server for NFS to obtain user identifier (UID) and group
identifier (GID) information directly from Active Directory. For information about storing UN IX user
data in Active Directory, see documentation for Identity Ma nagement for UNIX. For in formation about
enabling Active Directory Lookup, see “Specifying how Server for NFS obtains Windows user and group
information” available in online help.
User Name M apping Administration
The User N ame Mapping administration online help contains information for the following topics:
• Understanding the User Name Mapping component
• Starting and stopping User Name M apping
• Configuring User Name Mapping
• Securing access to the User Name Mapping server
• Managing maps
• Managing groups
Best practices for User Name Mapping
• Install User Nam e Mapping on a do main controller.
• C reate a User Name Mapping server pool.
• Configu
re User Name Mapping on a server cluster.
• Make sure User Name Mapping can download users from all domains.
• Refresh data whenever a user is added or changed.
• Place
password and group files on the User Name Mapping ser ver.
• Use appropriate permissions to p rotect password and group files.
• Ensure consistency of group mapping.
• Speci
fy the computers that can access User Name Mapping.
For fu
rther details, see the online help for Microsoft Services for Network File System.
Test an NFS file share configuration
The following steps provide the tasks necessary verify the set up of NFS sha res, user mappings, and
permissions granting the desired access to an NFS share on the storage server.
1. Create an N FS share.
2. Create NFS client groups (if desired).
3. Verify the N FS share exists.
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