wampserver 服务器报500错误，侦察小结

Internal Server Error
The server encountered an internal error or misconfiguration and was unable to complete your request.
Please contact the server administrator, admin@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. 

报错内容是通遍的，我看网上别人说，要修改D:\wamp\bin\apache\Apache2.2.11\conf\httpd.conf , 把里面的这一行#LoadModule rewrite_module modules/mod_rewrite.so，前面的#号去掉，重启服务器就可以了。 but，我试过后，发现并没有什么用，经过一段时间的测试和查看错误日志后，百度得知：

错误日志：configuration error:  couldn't perform authentication. AuthType not set!: /

经过检查发现在apache配置文件http.conf中有以下配置：

<Directory />
	Require all granted
</Directory>
删除其中的Require all granted，重启apache，问题解决。

不知道这500，还会报出什么错误，到时遇到再补充。