[CentOS] httpd LDAP auth module

Hi,

I am looking at LDAP module for Apache httpd for authentication. The
'yum install' gives me 'mod_authz_ldap.i386 0:0.26-9.el5_5.1', whereas
on Apache documentation site I find mod_authNz_ldap module. Both
modules appear to be different looking at available directives. Any
clues or suggestions on which module should be used? Where can I find
documentation for mod_authz_ldap?

--
CS.