To switch directories, click the globe icon. If you are not authenticated, click the lock and enter the name and password of a directory domain administrator.

3Select one or more users, groups, computers, or computer groups.

4Click Mobility, click Account Creation, click Creation, and then set the management setting to Always.

5Select “Create mobile account when user logs in to network account.”

This option must be selected to enable a mobile account for the selected account.

6Click Options and then set the management setting to Always.

7For the home folder location, select either “at path” or “user selects volume.”

If you select “at path,” enter the path to a folder on an external drive in the format /Volumes/DriveName/Folders, replacing DriveName with the name of the external drive and Folders with a folder on the external drive.

If you select “user selects volume,” choose “any external volume” or “any volume” from the pop-up menu. After authenticating at the login window, the user is prompted to choose a location.

If you select “any volume”, the user can choose either on the local hard disk or on the external hard disk. If the user chooses the external hard disk, the local home folder is stored in /Users/ShortName, where ShortName is the user’s short name.

8Click Apply Now.

Setting Expiration Periods for Mobile Accounts

When a user enables a mobile account, Mac OS X usually creates a local home folder on the computer he or she is using. If that user enables mobile accounts on several computers, each of those computers has a local home folder for the user. If the user doesn’t use those computers, the local home folders are unused and waste disk space.

When you set an expiration period on a mobile account, the mobile account and its local home folder are deleted after a period of inactivity.

You can also set an expiration period of 0 to delete the mobile account and its local home folder as soon as possible. Depending on the account type you’re managing, “as soon as possible” refers to two different events:

ÂFor users and groups, the mobile account and its local home folder are deleted after the user logs out.

ÂFor computers and computer groups, the mobile account and its local home folder are deleted the next time the login window appears. This doesn’t include when the login window appears while using fast user switching.

Expiry settings do not affect external accounts.

Chapter 10 Managing Preferences

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Apple 10.5 Leapard manual Setting Expiration Periods for Mobile Accounts