Configure other things to auth against your LDAP server

For apache2, you need the authnz_ldap module installed, and the config looks something like this:

       <directory /data/web/some/secret/place>
        AuthType Basic
        AuthBasicProvider ldap
        AuthName "Secret Place for Opers Only"
        AuthLDAPGroupAttribute memberUid
        AuthLDAPGroupAttributeIsDN off
        AuthLDAPURL ldaps://your.ldapserver.com/ou=Users,dc=afternet,dc=org?uid?sub?(objectclass=*)
        require ldap-group cn=Opers,ou=Groups,dc=afternet,dc=org
       </directory>