Dokuwiki 出现 LDAP 错误：用户身份验证暂时不可用

我正在尝试在本地计算机上使用 LDAP 设置 Dokuwiki。

Dokuwiki 版本为 2014-05-05 “Ponder Stibbons”

认证设置

authtype: authldap

插件 Authldap（捆绑插件）设置

plugin»authldap»server: localhost
plugin»authldap»port: 10389
plugin»authldap»usertree: ou=People,o=sevenSeas
plugin»authldap»grouptree: ou=Groups,o=sevenSeas
plugin»authldap»userfilter:
plugin»authldap»groupfilter:
plugin»authldap»version: 3
plugin»authldap»binddn: uid=admin,ou=system
plugin»authldap»bindpw: secret

Local.php内容

<?php
/*
 * Dokuwiki's Main Configuration File - Local Settings
 * Auto-generated by config plugin
 * Run for user: 
 * Date: Fri, 20 Jun 2014 10:04:50 +0200
 */

$conf['title'] = 'Sample Wiki';
$conf['license'] = 'cc-by-sa';
$conf['useacl'] = 1;
$conf['authtype'] = 'authldap';
$conf['superuser'] = '@admin,jhallett';
$conf['disableactions'] = 'register,resendpwd,profile';
$conf['proxy']['user'] = 'admin';
$conf['proxy']['pass'] = '<b>OU9sLi8nXVw=';
$conf['plugin']['authldap']['server'] = 'localhost';
$conf['plugin']['authldap']['port'] = 10389;
$conf['plugin']['authldap']['usertree'] = 'ou=People,o=sevenSeas';
$conf['plugin']['authldap']['grouptree'] = 'ou=Groups,o=sevenSeas';
$conf['plugin']['authldap']['version'] = 3;
$conf['plugin']['authldap']['binddn'] = 'uid=admin,ou=system';
$conf['plugin']['authldap']['bindpw'] = 'secret';
$conf['openregister'] = '0';

// end auto-generated content

LDAP 使用在 Java 1.7.0_51 上运行的 Apache DS 2.0.0 和 Apache Directory Studio 2.0.0。

两者都安装成功。我遵循的是默认安装入门指南 http://directory.apache.org/studio/users-guide/ldap_browser/gettingstarted_create_connection.html并添加了配置示例 http://directory.apache.org/apacheds/basic-ug/1.5-sample-configuration.html and LDIF 示例 http://directory.apache.org/apacheds/basic-ug/resources/apache-ds-tutorial.ldif.

我根据入门指南使用默认配置：

Default Port: 10389
Default Bind DN: uid=admin,ou=system
Default Bind Password: secret

当我保存 dokuwiki 配置时，出现以下错误：

User authentication is temporarily unavailable. 
If this situation persists, please inform your Wiki Admin.

我应该怎么做才能解决这个问题？

您的 PHP 未安装或启用 LDAP 扩展。 AD 身份验证需要它。您的发行版可能有一个单独的软件包。例如。 php5-ldap什么的。