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Mac OS X Tiger in a Nutshell by Jason McIntosh, Chuck Toporek, Chris Stone, Andy Lester

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Chapter 10. Directory Services

A directory service manages information about users and resources such as printers and servers. It can manage this information for anything from a single machine to an entire corporate network. The Directory Service architecture in Mac OS X is called Open Directory . Open Directory encompasses flat files (such as /etc/hosts), NetInfo (the legacy directory service brought over from earlier versions of Mac OS X and NeXTSTEP), LDAPv3, and other services through third-party plug-ins.

This chapter describes how to perform common configuration tasks, such as adding a user or host on Mac OS X with the default configuration. If your system administrator has configured your Macintosh to consult an external directory server, some of these instructions may not work. If that's the case, you should ask your system administrator to make these kinds of changes anyhow.

Understanding Directory Services

In Mac OS X 10.1.x and earlier, the system was configured to consult the NetInfo database for all directory information. If you needed to do something simple, such as adding a host, you couldn't just add it to /etc/hosts and be done with it. Instead, you had to use the NetInfo Manager (or NetInfo's command-line utilities) to add the host to the system.

However, as of Mac OS X 10.2 (Jaguar), NetInfo functions started to become more of a legacy protocol and were reduced to handling the local directory database for machines that did not participate in a network-wide directory, ...

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