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LDAP Servers
What is the LDAP server?
directory service (LDAP) is a software system stores, organizes and provides access to information in a directory, an infrastructure for information exchange for the location, management, administration and organization common elements and network resources, which can include volumes, folders, files, printers, users, groups, devices, phone numbers and other objects. To access the directory servers and clients interact in the model of client / server communication. Directory access process goes as follows: a client application API directory of applications (programs) to access a directory to read or write information. The customer access to call information in the directory with the name of the client through TCP / IP (default LDAP port TCP / IP – 636 for secure communications, 389 for clear communications.) The results of the action is returned to the client. Servers provide a specific service for LDAP clients. Sometimes, the directory servers can become clients of other servers to gather the information necessary to process the application.
LDAP Server performs the following basic operations:
- Find tickets;
- Compare input;
- Add entries;
- Delete the entries;
- Change entries;
- Entries are moved;
- Renaming entries;
- Prolonged use;
- Authentication.
According to X.500, the servers can be connected in a hierarchical structure. So users can move from one server to another, while searching for information. widely used web interface for server management, including remote administration.
The Directory services can be used to:
- Location and provision of information on individuals (address books, of resources yellow pages, white pages) and distributed as printers;
- User authentication and authorization for servers Web or other LDAP-enabled applications;
- Policies are shared by multiple applications or application instances.
major components of Directory Server are:
- A front-end (given the customer's operations on the LDAP server on a TCP / IP);
- Database back-end (handles and objects recovered from the stores relational database directory).
Some professional researchers to identify the LDAP servers from the number of open source and commercial software
Open Source LDAP servers are:
- Red Hat Directory Server / Fedora Directory Server. Red Hat Directory Server was purchased from Netscape Security Solutions as a commercial product for Red Hat Enterprise Linux. Today is produced by Red Hat with the name of Red Hat Directory Server. Following its policy of Red Hat Fedora Core version too. It's called Fedora Directory Server that is perfect for distribution based on RedHat. Codes of these servers agree in large part due to the common root. Unlike OpenLDAP to Fedora / Red Hat Directory Server has a good documentation.
- OpenLDAP. OpenLDAP slapd is the development of original. It is widely distributed and used in multiple platforms such as Linux, FreeBSD, Windows and MacOS X. Documentation on the Web container is completely obsolete, but there are many useful step by step instructions. OpenLDAP is tested by time. Its features are almost identical to Red Hat Directory Server.
Commercial LDAP servers
- Novell eDirectory. All products are free for institutions of higher education. It operates through the following operating systems: Novell Netware, Windows (NT) Linux (SUSE Linux Enterprise or Red Hat), Solaris, AIX, HP-UX. You have everything in one product – all the necessary programs are provided at the time. Installation and customization are easy. Benefits – Documentation exclusive and affordable price, technical support for registered users and multi-platform. Disadvantage – source files closed.
- Microsoft Active Directory. It is a part of the Windows Server family. It is an ideal solution for Microsoft Networks. Benefits – perfectly integrated in the system, documenting highly qualified.
- Sun Java System Directory Server. Sun iPlanet merged company and has created its new product – Sun ONE later renamed Sun Java System Directory Server. This is not a standalone product, but part of Java Enterprise System. Requirements: Solaris 10, Solaris 9, Solaris 8 (SPARC only) Red Hat Enterprise Linux 2.1 and 3.1, HP-UX 11i, Microsoft Windows 2000, XP, 2003. You can not buy outside of Java Enterprise System. But if you decide to use a complex solution from Sun, no problems. Sun engineers will help you install and configure to your needs.
- IBM Tivoli Directory Server. IBM LDAP solution. It relies on the following Operating systems: AIX, Solaris, Microsoft Windows 2000, HP-UX, Linux Intel, and IBM eServer iSeries, pSeries and zSeries. Advantage – qualified, open and free for all documents.
LDAP servers can not access the LDAP directory without customers. Some of them presented below:
Microsoft Windows:
- Softerra LDAP Administrator LDAP browser /;
- LDAP Browser LDAPSoft / LDAP management tool;
- LDAPAdmin;
- MaXware Directory Explorer;
- Explorer Active Directory
Linux / UNIX
- Evolution;
- KAddressBook;
- LDAPSoft LDAP Browser / Administrator.
Mac OS X
- Address Book;
- Access to the directory;
- Workgroup Manager.
Cross-platform:
- Apache Directory Studio;
- Ekiga (formerly GnomeMeeting)
- Mozilla Thunderbird
- Novell Evolution;
- phpLDAPadmin.
Storing data in a directory and share it between applications will save you time and money by keeping the management efforts and resources toward the bottom.
About the Author
Article is prepared by Helen Romanenko. LDAP Administrator is industry-leading software to browse and manage LDAP directories.
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