auth_ldap is an LDAP authentication module for the Apache Web server. Auth_ldap has excellent performance, due to its use of aggressive client-side caching algorithms. It also has support for LDAP over SS or TLSL. It also features a mode that lets Microsoft Frontpage clients manage their Web permissions while still using LDAP for authentication.
This C code module gives the Apache 1.3.x HTTP server the ability to correctly negotiate content types for XHTML documents. Currently these are sent as text/HTML for most Web sites. This gives maximum compatibility among older Web clients, but is not recommended practice according to the W3C.