Apple Mac OS X Server Print Service Administration For Version 10.4 or Later Manual do Utilizador Página 68

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68 Chapter 4 Setting Up User Accounts
Choosing Stable Short Names
When you create groups, Mac OS X identifies users in them by their first short name,
which can’t be changed.
If a short name change is unavoidable, you can create a new account for the user (in
the same directory domain) that contains the new short name, but retains all other
information (user ID, primary group, home directory, and so forth). You can then disable
login for the old user account. Now the user can log in using the changed name, yet
have the same access to files and other network resources as before. (See “Disabling a
User Account” on page 63 for information on disabling use of an account for login.)
Avoiding Duplicate Names
If separate user accounts have the same name (user name or short name) on a
Mac OS X computer, login window will display the list of users for you to choose from.
This functionality is new to Mac OS X v10.4 and is not supported in previous versions.
Consider an example that consists of three directory domains which were shared after
their users were created. Tony Smith has an account in the Students domain, and Tom
Smith has an account in the root domain. Both accounts contain the short name
“tsmith and the password “smitty.”
When Tony logs in to his computer with a user name “tsmith” and the password
smitty,” the login window lists the two users whose accounts have the same short
name and password (Tony Smith and Tom Smith). If Tony selects Toms name, he’s able
to log in as Tom. Tony can access Tom’s files, not a desirable result.
/
Students Faculty
T
ony’s computer
Tony Smith
(tsmith,smitty)
Tom Smith
(tsmith,smitty)
Tom’s computer
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