Chapter 7 focuses on directory replication and different ways of getting directory servers to interoperate over a network. We will start by looking at the idea of a directory entry, with a distinguished name and attributes. Once your errata are verified, your submission will be accepted and the errata are added to the list of existing errata. Here, we take a close look at the various back-end database options and also look at performance tuning settings, as well as the recently introduced technology of directory overlays. He is a senior developer for the New York Times Company, where he works on ConsumerSearch. Object class and attribute hierachy is covered to great depth, really explaining how it works and the implications of it. To that end, this book will take a practical approach, emphasizing how to get things done.
However, Packt Publishing cannot guarantee the accuracy of this information. Here, we take a close look at the various backend database options and also look at performance tuning settings, as well as the recently introduced technology of directory overlays. Instead, it was designed to give implementers the ability to define—clearly and carefully—what data the directory should store. The E-mail message field is required. Although it's a shorter chapter, it does cover some fairly important ground, and explained a few new things to me that I hadn't had a chance to use before. The files available for download will then be displayed.
Operational attributes are also touched on. At the top of the hierarchy is the base entry, and beneath that entries are organized into branches. . While a record may have multiple object classes, one of these object classes must be the structural object class for the record. One of the fields, the organization name o , is required for any entry with an organization object class.
Words that you see on the screen, in menus or dialog boxes for example, appear in our text like this: Clicking the Advanced Search Form link at the top of the simple search screen will load a search screen with more options. A phone book contains a very specific type of information, organized in a very specific way, and designed to fulfil a very specific purpose. Attribute names are not case sensitive. The different type of object classes - abstract, structural and auxiliary - are explained and shown how they fit into the hierachy. The best place to start is with the idea of the directory.
Here's an example phone book entry: Acme Services 123 W. For example, a general purpose directory should be able to store information about entities as diverse as people and igneous rock samples. Beneath that is a subordinate entry, which, in turn, may have its own subordinate entries. The E-mail message field is required. Attributes are defined in attribute definitions, which will be discussed at length in Chapter 6. Chapter 7 focuses on directory replication and different ways of getting directory servers to interoperate over a network. Let us know what you think about this book, what you liked or may have disliked.
For example, the attribute definition for a country name gives the following information: The names c and countryName can refer to this object. Neither the author, Packt Publishing, nor its dealers or distributors will be held liable for any damages caused or alleged to be caused directly or indirectly by this book. McDaniel Credits Author Matt Butcher Reviewers Aaron Richton George K Thiruvathukal Quanah Gibson-Mount Development Editor Douglas Paterson Assistant Development Editor Nikhil Bangera Technical Editor Ved Prakash Jha Editorial Manager Dipali Chittar Project Manager Patricia Weir Project Coordinator Abhijeet Deobhakta Indexer Bhushan Pangaonkar Proofreader Rebecca Paterson Production Coordinator Shantanu Zagade Cover Designer Shantanu Zagade About the Author Matt Butcher is the principal consultant for Aleph-Null, Inc. At various points in this book, we will make use of operational attributes. The top of the hierarchy is the company itself. This is a special attribute that provides information about what type of record or entry this is. The information in a telephone directory is typically stored in one long alphabetical list.
And where two pieces of information the two phone numbers were initially compressed onto one line, they have now been separated, making the information more explicit. And in Illinois, we have a company called Acme Services located in the city of Chicago, and another company named Acme Services located in the city of Springfield. Simply knowing the company name alone is not sufficient information to isolate just one entry in the phone book. While this may have been the intention of early directory server developers, there is no reason why, in practice, a directory server entry must correlate with anything external to the directory—real or virtual. Information is also broken up into smaller chunks city and state on separate lines , and some information which was implicit in the previous entry such as the country has been made explicit. But so can relational databases and even more basic data structures.
To send us general feedback, simply drop an email to , making sure to mention the book title in the subject of your message. Such directories are not extensible. The telephoneNumber attribute has two values, each representing a different phone number. When we think of a directory, we conjure images of telephone directories or address books. Here, we take a close look at the various back-end database options and also look at performance tuning settings, as well as the recently introduced technology of directory overlays. As for the values of attributes, case sensitivity depends on the attribute definition.
Then we look at the main features, and do some custom tuning. I'd like to thank my wife Karen for all of her support in these many endeavors. It is an open-source server that provides network clients with directory services. We use such directories to find information about individuals or organizations. I hope it is evident in this book that I have taken this lesson to heart. Reader Feedback Feedback from our readers is always welcome. For experienced systems administrators it's fairly straight forward, but good for the less experienced out there.