LiteWebServer (LWS) is a small, modular Web server and Java web container. It is based on code from Apache's popular Tomcat server, tweaked and extended for easier installation and management. It consists of a set of modules that can be installed separately, so you can install and manage exactly the features you need. The base module provides basic Web server features (HTTP/1.1 support) and support for the Servlet API. Add-on modules provide additional features, such as JSP support. Installing new modules and upgrading or removing existing modules is as easy as can be with the bundled JustGetIt module manager.
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.