Apple Mac OS X Server (Administrator’s Guide) - Manual (Page 129)

Users and Groups 129
When a managed user logs in, the preferences that take effect are a combination of his user
preferences and preferences set up for any workgroup or computer list he or she belongs to.
See Chapter 6, “Client Management: Mac OS X,” and Chapter 10, “Client Management:
Mac OS 9 and OS 8,”for managed user information.
Groups, Primary Groups, and Workgroups
As noted earlier, when you define preferences for a group, the group is known as a
workgroup.
A primary group is the user’s default group. As “Directory and File Access by Other Users”
on page 125 describes, primary groups can expedite the checking done by the Mac OS X file
system when a user accesses a file.
Administrators
Users with server or directory domain administration privileges are known as
administrators. Administrators are always members of the predefined “admin” group.
Guest Users
Sometimes you want to provide services for individuals who are anonymous—that is, they
can’t be authenticated because they don’t have a valid user name or password. These users
are known as guest users.
Some services, such as AFP, let you indicate whether you want to let guest users access files.
If you enable guest access, users who connect anonymously are restricted to files and folders
with privileges set to Everyone.
Another kind of guest user is a managed user that you can define to allow easy setup of
public computers or kiosk computers. See Chapter 10, “Client Management: Mac OS 9 and
OS 8,” for more about these kinds of users.