By Timothy A. Howes Ph.D., Mark C. Smith, Gordon S. Good
Whereas early listing criteria (such as X.500) supply a few cross-platform performance, none has the flexibleness and frequent attraction of light-weight listing entry Protocol (LDAP), that is quick changing into a typical a part of networked desktops. In knowing and Deploying LDAP listing companies, 3 skilled engineers percentage their wisdom of LDAP in thought and perform, successfully defining this fast-emerging know-how. in case you are making plans to paintings with LDAP by any means - no matter if as a community supervisor, a software program developer, or a knowledge expertise administrator - you must learn and be aware of this booklet. it is the final observe on LDAP because it stands today.Since listing prone usually are not broadly understood, this booklet starts by way of defining them and explaining what they could do for a corporation. The advisor then will get into the specifics of the way LDAP organizes directories and handles queries. The authors visit nice lengths to discuss what info to install directories, how you can validate and hold it, and the way to regulate entry to it. there is additionally plenty of fabric on beginning LDAP companies and on troubleshooting.The aft a part of this publication holds targeted allure for software program builders, because it talks largely approximately the best way to enforce LDAP in either new and present software program. all through, the authors pay detailed recognition to information redundancy, defense, privateness, and the commercial matters excited about an LDAP deployment. The book's real-world concentration is cemented through case reports (both historic and semifictional).
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Extra resources for Understanding and Deploying LDAP Directory Services
Some files, of course, are read far more often than they are written. Application binaries are a good example of files in this category, but the size of these files is often larger than should be stored in a directory. Applications often access a file in chunks, especially if the file is large. File system APIs provide functions for Part I: Introduction to Directory Services and LDAP 33 34 Part I: Introduction to Directory Services and LDAP this very purpose, such as seek(), read(), and write(), which can be used to access only a portion of a larger file.
Directories are best at storing relatively small pieces of information, not multimegabyte files. Directories are good at storing pointers to large things, but not the large things themselves. • Character of the information. Directories typically have an attribute-based information model where information is broken up into a set of name value pairs (see Chapter 2, Introduction to LDAP, for a detailed discussion of the LDAP information model). If you can express your information naturally in this form, a directory might be a good choice.
This is perfectly acceptable. These details are hidden from the programmer by an LDAP SDK (software development kit). Programmers writing an LDAP application don't need to be concerned with sorting out these results; the SDKs take care of this automatically. 3. A Client Issues Multiple LDAP Search Requests Simultaneously Allowing multiple concurrent requests "in flight" enables LDAP to be more flexible and efficient than protocols that operate in a "lockstep" fashion (for example, Hypertext Transfer Protocol, or HTTP).