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How to Configure OpenLDAP for the AXIGEN Mail Server
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Short Description: May 18, 2007 ... AXIGEN Mail Server version 3.0 or higher installed, a LDAP server running and the LDAP directory set up. Hands-on example - Debian 3.1 and ...
Content Inside: How to Configure OpenLDAP for the AXIGEN Mail Server
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How to Configure OpenLDAP for the AXIGEN Mail Server
What is LDAP?
LDAP stands for Lightweight Directory Access Protocol. This protocol is used to access a directory listing. It is being implemented in Web browsers and e-mail programs to enable lookup queries (searches for certain types of information). When compared to other querying architectures such as SQL databases, lookup speed is the major advantage of using LDAP. In large companies, a huge number of requests are made and storing the information in a database becomes a very resource consuming approach. The basic principle behind LDAP is the optimization toward many record reads and few additions or modifications. From an administrator's point of view, LDAP is fairly easy to use as long as the concepts behind the system are understood. It is not the most user-friendly application to use, but the benefits it provides are worth the extra effort.
Why use LDAP?
LDAP can be used along side AXIGEN to provide three functionalities: LDAP Address Directory, User Authentication and Connection Routing. The main benefits this integration entails are less time spent searching for contacts when sending an e-mail, especially within large contact databases, less stress on the server and increased end-user productivity. Authentication is a widely used method of preventing unauthorized access to the mail server. In a mail environment with hundreds or thousands of accounts, a long authentication time can prevent other users from logging onto the system and can thus lead to poor service. When managing several AXIGEN servers, LDAP comes as a means of controlling all authentication processes from a single location. OpenLDAP (an open source implementation of the LDAP protocol) should be used alongside AXIGEN Mail Server if you are looking for a shared address book and you want to have user accounts spread on several AXIGEN servers. If you decide to use a LDAP system with your mail server, there are a few aspects you should take into account. A fair understanding of the LDAP system is required before actually starting to install and configure it. The additional workload needed to configure and implement an LDAP server is considerable, thus it is typically used only in scenarios involving a large number of mailboxes spread across several AXIGEN servers.
How does LDAP work?
A client starts a LDAP session by connecting to a LDAP server, by default on the 389 TCP port. The client then sends operation requests (queries) to the server which returns a certain response. Apart from specific situations, the client is not required to wait for a response before sending subsequent requests, and the server may send the responses in any order.
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Page 1 of 6 Last modified: May 18, 2007
