关于apache2和auth_mysql的问题

pengben

最近在尝试配一个SVN服务器，参考下面的帖子里面用到的一些配置文件：http://www.subversion.org.cn/bbs ... page%3D1&page=1
现在的问题时，配置完成后，访问设置了权限的页面，在输入用户名和密码后一直是提示500错误：
Internal Server Error

The server encountered an internal error or misconfiguration and was unable to complete your request.

Please contact the server administrator, webmaster@localhost and inform them of the time the error occurred, and anything you might have done that may have caused the error.

More information about this error may be available in the server error log.

同时apache的log输出下列信息：
[Wed Jan 31 23:56:42 2007] [error] Connection error: Access denied for user 'www-data'@'localhost' (using password: NO)

不使用mysql数据库时，目录访问正常，不知原因所在，盼答复！

pengben

我的环境：
Ubuntu server 6.10
Apache/2.0.55
DAV/2
SVN/1.3.2
PHP/5.1.6 Server